1. DL manuals
  2. Icom
  3. Transceiver
  4. IC-7800
  5. Instruction Manual

Icom IC-7800 Instruction Manual

Summary of IC-7800

  • Page 1

    The transceiver i7800 instruction manual a-6328h-1ex printed in japan © 2004 icom inc..

  • Page 2

    I foreword congratulations! You are the owner of the world’s most advanced amateur hf/50 mhz transceiver— ic-7800. The ic-7800 is designed and built with icom’s superior technology and craftsmanship. With proper care, this prod- uct should provide you with years of trouble-free operation. We would l...

  • Page 3

    Ii precautions r warning high voltage! Never at- tach an antenna or internal antenna connector during transmission. This may result in an electrical shock or burn. Rwarning! Never operate the transceiver with a headset or other audio accessories at high vol- ume levels. Hearing experts advise agains...

  • Page 4

    Q ac power cable* ………………………………… 1 w antenna jumper cables …………………………… 2 e rack mounting handles ……………………… 1 pair r screws for rack mounting handles ………… 1 set t cf (compact flash) memory card ……………… 1 y stands ………………………………………… 1 pair u spare fuse (fgb 2 a) …………………………… 1 i rca plugs ………………………………………… ...

  • Page 5

    Iv d rear panel—2 ……………………………………………………… 2-6 ■ linear amplifier connections …………………………………………… 2-7 d connecting the ic-pw1 …………………………………………… 2-7 d connecting a non-icom linear amplifier …………………………… 2-7 ■ transverter jack information …………………………………………… 2-8 ■ fsk and afsk (sstv) connections …………………………………...

  • Page 6

    D memory keyer screen …………………………………………………4-8 d editing a memory keyer ………………………………………………4-9 d contest number set mode …………………………………………4-10 d keyer set mode ………………………………………………………4-11 ■ operating rtty (fsk) ……………………………………………… 4-13 d convenient functions for receive …………………………………4-14 d about rtty rever...

  • Page 7

    Vi d dsp filter shape …………………………………………………… 5-14 d filter shape set mode ……………………………………………… 5-14 ■ dualwatch operation ………………………………………………… 5-16 ■ noise blanker ………………………………………………………… 5-17 d nb set mode ………………………………………………………… 5-17 ■ noise reduction ………………………………………………………… 5-18 ■ dial lock function …………...

  • Page 8

    ■ memory channel programming ……………………………………… 8-4 d programming in vfo mode ………………………………………… 8-4 d programming in memory mode …………………………………… 8-4 ■ frequency transferring ………………………………………………… 8-5 d transferring in vfo mode ………………………………………… 8-5 d transferring in memory mode ……………………………………… 8-5 ■ memory ...

  • Page 9

    Viii d load option set mode …………………………………………… 12-22 ■ file saving …………………………………………………………… 12-23 ■ file loading …………………………………………………………… 12-24 ■ changing the file name ……………………………………………… 12-25 ■ deleting a file ………………………………………………………… 12-26 ■ formatting the cf card ……………………………………………… 12-26 section 13 m...

  • Page 10: Panel Description

    1-1 panel description section 1 ■ front panel ……………………………………………………………… 1-2 ■ rear panel ……………………………………………………………… 1-12 ■ lcd display …………………………………………………………… 1-14 ■ screen menu arrangement …………………………………………… 1-15.

  • Page 11: ■ Front Panel

    1-2 ■ front panel q power switch [power] (p. 3-2) ➥ push to turn the transceiver power on. • the [power] indicator above this switch lights green when powered on. ➥ push for 1 sec. To turn the transceiver power off. • the [power] indicator lights orange even the trans- ceiver is powered off when the...

  • Page 12

    1-3 i mic gain control [mic] adjusts microphone input gain. • the transmit audio tone in ssb, am and fm modes can be adjusted independently in set mode. (p. 12-4) ✔ how to set the microphone gain. Set the [mic] control so that the alc meter sometimes swings during normal voice transmission in ssb, a...

  • Page 13: ■ Front Panel (Continued)

    1-4 ■ front panel (continued) !9 agc control [agc] (for main band; p. 5-11) @0 agc control [agc] (for sub band; p. 5-11) adjusts the agc circuit time constant. • to use the set value, push appropriate band’s [agc vr] ([agc vr] indicator lights). @1 agc volume switch [agc vr] (for main band; p. 5-11)...

  • Page 14

    1-5 @9 multi-function switches push to select the functions indicated in the lcd display to the right of these switches. • functions vary depending on the operating condition. ➥ selects the antenna connector from ant1, ant2, ant3 and ant4 when pushed. (p. 10-2) ➥ displays antenna selection memory wh...

  • Page 15: ■ Front Panel (Continued)

    1-6 ■ front panel (continued) #5 noise reduction switch [nr] (for main band; p. 5-18) #6 noise reduction switch [nr] (for sub band; p. 5-18) push to switches the noise reduction on and off. • the [nr] indicator above this switch lights green when the function is activated. #7 noise reduction level c...

  • Page 16

    1-7 $9 memory up/down switches [y]/[z] (p. 8-2) push to select the memory channel number for the selected readout. • memory channels can be selected both in vfo and memory modes. %0 lcd function switches [f-1]–[f-7] push to select the function indicated in the lcd dis- play above these switches. • f...

  • Page 17: ■ Front Panel (Continued)

    1-8 ■ front panel (continued) %7 memo pad-write switch [mp-w] (p. 8-7) programs the selected readout frequency and op- erating mode into a memo pad. • the 5 most recent entries remain in memo pads. • the memo pad capacity can be expanded from 5 to 10 in set mode for your convenience. (p. 12-16) %8 v...

  • Page 18

    1-9 ^6 notch switch [notch] (for sub band; p. 5-19) ^7 notch switch [notch] (for main band; p. 5-19) ➥ switches the notch function between auto, man- ual and off in ssb and am modes. ➥ turns the manual notch function on and off when pushed in cw, rtty and psk31 mode. ➥ turns the auto notch function ...

  • Page 19: ■ Front Panel (Continued)

    1-10 ■ front panel (continued) *0 rit/∂tx control [rit/∂tx] (pgs. 5-10, 6-4) shifts the receive and/or transmit frequency without changing the transmit and/or receive frequency while the rit and/or ∂tx functions are on. • rotate the control clockwise to increase the frequency, or rotate the control ...

  • Page 20

    1-11 *5 digital rf selector control [digi-sel] (for main band; p. 5-19) *6 digital rf selector control [digi-sel] (for sub band; p. 5-19) adjusts the digital rf selector center frequency. • the control can be used as the audio peak filter adjust- ment (p. 12-17) *7 digital rf selector switch [digi-s...

  • Page 21: ■ Rear Panel

    1-12 ■ rear panel q antenna connector 1 [ant 1] (p. 2-4) w antenna connector 2 [ant 2] (p. 2-4) e antenna connector 3 [ant 3] (p. 2-4) r antenna connector 4 [ant 4] (p. 2-4) accept a 50 Ω antenna with a pl-259 plug connec- tor. T ground terminal [gnd] (p. 2-3) connect this terminal to a ground to pr...

  • Page 22

    1-13 !6 accessory socket 1 a [acc 1–a] !7 accessory socket 2 a [acc 2–a] !8 accessory socket 1 b [acc 1–b] !9 accessory socket 2 b [acc 2–b] enable connection of external equipment such as a liner amplifier, an automatic antenna selector/tuner, tnc for data communications, etc. • see p. 2-10 for soc...

  • Page 23: ■ Lcd Display

    ■ lcd display q band width indicator (p. 5-12) shows the passband width of the if filter. W mode indicator shows the selected mode. E shift frequency indicator (p. 5-12) shows the shift frequency of the if filter. R quick tuning indicator (p. 3-6) appears when the quick tuning step function is in us...

  • Page 24: ■ Screen Menu Arrangement

    1-15 ■ screen menu arrangement the following screens can be selected from the start up screen. Choose the desired screen using the fol- lowing chart. Pushing [exit/set] several times returns to the start up screen. See p. 12-3 for set mode arrangement. 1 panel description • spectrum scope screen (p....

  • Page 25: Section

    2-1 installation and connections section 2 ■ unpacking ……………………………………………………………… 2-2 ■ antenna jumper cable connection …………………………………… 2-2 ■ selecting a location …………………………………………………… 2-2 ■ rack mounting handle attachment …………………………………… 2-2 ■ grounding ……………………………………………………………… 2-3 ■ antenna connection ...

  • Page 26: ■ Unpacking

    2-2 ■ unpacking after unpacking, immediately report any damage to the delivering carrier or dealer. Keep the shipping cartons. For a description and a diagram of accessory equip- ment included with the ic-7800, see ‘supplied acces- sories’ on p. Iii of this manual. ■ antenna jumper cable connection ...

  • Page 27: ■ Grounding

    2-3 ■ grounding to prevent electrical shock, television interference (tvi), broadcast interference (bci) and other prob- lems, ground the transceiver through the ground terminal on the rear panel. For best results, connect a heavy gauge wire or strap to a long earth-sunk copper rod. Make the distanc...

  • Page 28: ■ Required Connections

    2-4 ■ required connections d front panel d rear panel main sub acc 1 acc 2 acc 1 acc 2 alc adj alc relay key ext keypad meter dc out 15v max1a ref i/o 10mhz -10dbm in out remote rs-232c key board ext-display a b s/p dif ext-sp ant 1 ant 2 ant 3 ant 4 gnd ac i x-verter a in rx ant b rx ant out in out...

  • Page 29: ■ Advanced Connections

    2-5 ■ advanced connections d front panel d rear panel— 1 main sub acc 1 acc 2 acc 1 acc 2 alc adj alc relay key ext keypad meter dc out 15v max1a ref i/o 10mhz -10dbm in out remote rs-232c key board ext-display a b s/p dif ext-sp ant 1 ant 2 ant 3 ant 4 gnd ac i x-verter a in rx ant b rx ant out in ...

  • Page 30

    2-6 d rear panel— 2 main sub acc 1 acc 2 acc 1 acc 2 alc adj alc relay key ext keypad meter dc out 15v max1a ref i/o 10mhz -10dbm in out remote rs-232c key board ext-display a b s/p dif ext-sp ant 1 ant 2 ant 3 ant 4 gnd ac i x-verter a in rx ant b rx ant out in out [meter] connects an external mete...

  • Page 31

    2-7 ■ linear amplifier connections d connecting the ic-pw1 d connecting a non-icom linear amplifier r warning: set the transceiver output power and linear ampli- fier alc output level referring to the linear amplifier instruction manual. The alc input level must be in the range 0 v to –4 v, and the ...

  • Page 32

    2-8 ■ transverter jack information when 2 to 13.8 v is applied to pin 6 of [acc 2], the [x- verter] connector is activated for transverter opera- tion and the antenna connectors do not receive or transmit any signals. (p. 4-6) while receiving, [x-verter] connector can be acti- vated as an input term...

  • Page 33: ■ Microphones (Options)

    2-9 ■ microphone connector information (front panel view) caution: do not short pin 2 to ground as this can damage the internal 8 v regulator. Note: dc voltage is applied to pin 1 for micro- phone operation. Take care when using a non-icom microphone. ■ microphones (options) q up/down switches [up]/...

  • Page 34

    2-10 ■ accessory connector information 2 installation and connections acc 2 pin no. Name description specifications acc 1 pin no. Name description specifications note: if the cw side tone level limit or beep level limit is in use, the cw side tone or beep tone de- creases from the fixed level when t...

  • Page 35: Basic Operations

    3-1 basic operations section 3 ■ when first applying power (cpu resetting) ………………………… 3-2 ■ initial settings …………………………………………………………… 3-2 ■ main/sub band selection ……………………………………………… 3-3 ■ selecting vfo/memory mode ………………………………………… 3-3 ■ selecting an operating band …………………………………………… 3-4 d using the b...

  • Page 36: ■ Initial Settings

    3-2 ■ when first applying power (cpu resetting) before first applying power, make sure all connections required for your system are complete by referring to section 2. Then, reset the transceiver using the follow- ing procedure. Resetting clears all programmed contents in memory channels and returns...

  • Page 37: ■ Main/sub Band Selection

    ■ main/sub band selection the ic-7800 has 2 bands, main and sub bands. The main band is displayed on the left hand side, and the sub band is displayed on the right hand side of the lcd. Some functions can only be accessed to the se- lected band and the transmission is only permitted for the main ban...

  • Page 38

    3-4 ■ selecting an operating band the triple band stacking register provides 3 memories in one band. 3 sets of a frequency and operating mode on each band are automatically stored when used. If a band key is pushed once, the frequency and oper- ating mode last used are called up. When the key is pus...

  • Page 39: ■ Frequency Setting

    3-5 ■ frequency setting the transceiver has several tuning methods for conve- nient frequency tuning. D tuning with the main dial q push the desired band key on the keypad 1–3 times. • 3 different frequencies can be selected on each band with the band key. • push [main] or [sub] to select the band i...

  • Page 40

    3-6 d quick tuning step the operating frequency can be changed in khz steps (0.1, 1, 5, 9, 10, 12.5, 20 or 25 khz selectable) for quick tuning. Q push [ts] to turn the quick tuning function on. • “ z” appears when the quick tuning function on. W rotate the main dial to change the frequency in pro- g...

  • Page 41

    3-7 d selecting 1 hz step the minimum tuning step of 1 hz can be used for fine tuning. Q push [ts] to turn the quick tuning function off. W push [ts] for 1 sec. To turn the 1 hz tuning step on and off. Note: 1 hz tuning step activates for both main and sub bands simultaneously. Therefore, either [ts...

  • Page 42

    3-8 ■ operating mode selection ssb (usb/lsb), ssb data (usb data/lsb data), cw, cw reverse (cw-r), rtty, rtty reverse (rtty-r), psk, psk reverse (psk-r), am, am data, fm and fm data modes are available in the ic-7800. Select the desired operation mode as follows. To select a mode of operation, push ...

  • Page 43: ■ Volume Setting

    3-9 ■ volume setting ➥ rotate [af] control clockwise to increase; counter- clockwise to decrease the audio output level. • set a suitable audio level. ■ rf gain adjustment ➥ rotate [rf] control clockwise to increase; counter- clockwise to decrease the receiver sensitivity. ■ squelch level adjustment...

  • Page 44

    ■ meter indication selection the s/rf meter indication, during transmit, can be se- lected from the following items as your desired. ➥ push [meter] several times to select the desired item. Indicates the relative rf output power in watts. Indicates the vswr over the transmis- sion line. Indicates th...

  • Page 45

    3-11 d meter type selection total of 3 meter types are available in the ic-7800— standard, edgewise and bar meters. Follow the instructions below for the meter type selec- tion. Q push [exit/set] several times to return to normal screen, if necessary. W push [f-7•set], then push [f-3•display] to sel...

  • Page 46

    3-12 ■ basic transmit operation d transmitting before transmitting, monitor your selected operating frequency to make sure transmitting won’t cause inter- ference to other stations on the same frequency. Qpush [transmit] or [ptt] (microphone) to trans- mit. • the main band’s [tx] indicator lights re...

  • Page 47

    3-13 d drive gain adjustment the drive gain can be activated for the all modes ex- cept ssb without speech compressor to adjust the am- plifying gain at the drive stage. Before transmitting, monitor your selected operating frequency to make sure transmitting won’t cause inter- ference to other stati...

  • Page 48: Receive And Transmit

    4-1 receive and transmit section 4 ■ operating ssb ………………………………………………………… 4-2 d convenient functions for receive ……………………………………4-2 d convenient functions for transmit ……………………………………4-3 d about 5 mhz band operation (usa version only) …………………4-3 ■ operating cw …………………………………………………………… 4-4 d convenient ...

  • Page 49: ■ Operating Ssb

    4-2 ■ operating ssb q push a band key to select the desired band. W push [ssb] to select lsb or usb. • “usb” or “lsb” appears. • below 10 mhz lsb is automatically selected; above 10 mhz usb is automatically selected. E rotate the main dial to tune a desired signal. • the s-meter indicates received s...

  • Page 50

    D convenient functions for transmit d about 5 mhz band operation (usa version only) operation on the 5 mhz band is allowed on 5 discrete frequencies and must adhere to the following: • usb mode • maximum of 50 watts erp (effective radiated power) • 2.8 khz bandwidth it is the operator’s responsibili...

  • Page 51: ■ Operating Cw

    4-4 ■ operating cw q push a band key to select the desired band. W push [cw] to select cw. • after cw mode is selected, push [cw] to toggle be- tween cw and cw-r modes. • “cw” or “cw-r” appears. E rotate the main dial to simultaneously tune a de- sired signal and its side tone. • the s-meter indicat...

  • Page 52

    4-5 d convenient functions for transmit d about cw reverse mode cw-r (cw reverse) mode receives cw signals with a reverse side cw carrier point like that of lsb and usb modes. Use when interfering signals are near a desired signal and you want to change the interference tone. ➥ during cw mode, push ...

  • Page 53

    4-6 d apf (audio peak filter) operation the apf changes the receive frequency response by boosting up a particular frequency to pick up a desired cw signal. The peak frequency can be adjusted with [digi-sel] control when “apf” is selected for “digi-sel vr op- eration” in miscellaneous (others) set m...

  • Page 54

    4-7 ■ electronic keyer functions the ic-7800 has a number of convenient functions for the electronic keyer that can be accessed from the memory keyer menu. Q during cw mode, push [exit/set] several times to normal screen, if necessary. W push [f-3•keyer] to select memory keyer screen. E push [exit/s...

  • Page 55

    4-8 d memory keyer screen pre-set characters can be sent using the keyer send menu. Contents of the memory keyer are set using the edit menu. • transmitting q during cw mode operation, push [f-3•keyer] to select memory keyer screen. W push [transmit] to set the transceiver to trans- mit, or set the ...

  • Page 56

    4-9 d editing a memory keyer the contents of the memory keyer memories can be set using the memory keyer edit menu. The memory keyer can memorize and re-transmit 4 cw key codes for often-used cw sentences, contest numbers, etc. Total capacity of the memory keyer is 70 characters per memory channel. ...

  • Page 57

    4-10 d contest number set mode this menu is used to set the contest (serial) number and count up trigger, etc. • setting contents q during cw mode operation, push [f-3•keyer] to select memory keyer screen. W push [exit•set] to select memory keyer menu, then push [f-3•001] to select contest number se...

  • Page 58

    4-11 d keyer set mode this set mode is used to set the cw side tone, mem- ory keyer repeat time, dash weight, paddle specifica- tions, keyer type, etc. • setting contents q during cw mode operation, push [f-3•keyer] to select memory keyer screen. W push [exit•set] to select memory keyer menu, then p...

  • Page 59

    4-12 d keyer set mode (continued) 4 receive and transmit this item sets the paddle polarity. • normal and reverse polarity can be selected. This item selects the keyer type for [elec-key] con- nector on the front panel. • elec-key, bug-key and straight key can be se- lected. (default: elec-key) this...

  • Page 60: ■ Operating Rtty (Fsk)

    4-13 ■ operating rtty (fsk) the baudot rtty encoder/decoder is built-in to the ic- 7800. When connecting a pc keyboard (p. 2-6), rtty operation can be performed without an external rtty terminal, tnc, etc. When using your rtty terminal or tnc, consult the manual that comes with the rtty terminal or ...

  • Page 61

    4-14 d convenient functions for receive d about rtty reverse mode received characters are occasionally garbled when the receive signal is reversed between mark and space. This reversal can be caused by incorrect tnc connections, setting, commands, etc. To receive re- versed rtty signals correctly, s...

  • Page 62

    4-15 d functions for the rtty decoder indication q push a band key to select the desired band. W push [rtty/psk] to select rtty. • after rtty mode is selected, push [rtty/psk] for 1 sec. To toggle between rtty and rtty-r modes. • “rtty” or “rtty-r” appears. E push [f-3•decode] to display the decoder...

  • Page 63

    4-16 d rtty memory transmission pre-set characters can be sent using the rtty mem- ory. Contents of the memory are set using the edit menu. Q during rtty mode operation, push [f-3•decode] to select rtty decode screen. W push [f-4•tx mem] to select rtty memory screen. E push [f-7•1–4/5–8] to select m...

  • Page 64

    4-17 d editing rtty memory the contents of the rtty memories can be set using the memory edit menu. The memory can memorize and re-transmit 8 rtty contents for often-used rtty sentences. Total capacity of the memory is 70 charac- ters per memory channel. • programming contents q during rtty mode ope...

  • Page 65

    4-18 d rtty decode set mode this set mode is used to set the decode usos func- tion, time stamp setting, etc. • setting contents q during rtty mode operation, push [f-3•decode] to select rtty decode screen. W push [f-1•] to select rtty decode menu 2, then push [f-6•set] to select rtty decode set mod...

  • Page 66

    4-19 d rtty decode set mode (continued) 4 receive and transmit turn the time stamp (date, transmission or reception time) indication on and off. • on : indicates the time stamp. • off : no time stamp indication. Selects the clock indication for time stamp usage. Note: the time won’t be displayed whe...

  • Page 67

    4-20 d data saving the contents of the rtty memory and received sig- nal can be saved into the cf memory card. Q during rtty decode screen indication, push [f-1•] to select rtty decode menu 2. W push [f-5•save] to select decode file save screen. E change the following conditions if desired. • file n...

  • Page 68: ■ Operating Psk

    4-21 ■ operating psk the psk31 encoder/decoder is built-in to the ic-7800. When connecting a pc keyboard (p. 2-6), psk31 op- eration can be performed without a psk operation soft- ware installed pc. When using your psk operation software, consult the manual that comes with the software. Q push a ban...

  • Page 69

    4-22 d convenient functions for receive d about bpsk and qpsk mode bpsk and qpsk modes are available for the psk31. • bpsk (binary phase shift keying) mode is the most often used mode. • qpsk (quadrature phase shift keying) mode has error correction capability to provides a better decod- ing than bp...

  • Page 70

    4-23 d functions for the psk decoder indication q push a band key to select the desired band. W push [rtty/psk] to select psk. • after psk mode is selected, push [rtty/psk] for 1 sec. To toggle between psk and psk-r modes. • “psk” or “psk-r” appears. E push [f-3•decode] to display the decoder screen...

  • Page 71

    4-24 d psk memory transmission pre-set characters can be sent using the psk memo- ry. Contents of the memory are set using the edit menu. Q during psk mode operation, push [f-3•decode] to select psk decode screen. W push [f-4•tx mem] to select psk memory screen. E push [f-7•1–4/5–8] to select memory...

  • Page 72

    4-25 d editing psk memory the contents of the psk memories can be set using the memory edit menu. The memory can memorize and re-transmit 8 psk contents for often-used psk sentences. Total capacity of the memory is 70 charac- ters per memory channel. • programming contents q during psk mode operatio...

  • Page 73

    4-26 d psk decode set mode this set mode is used to set the decode usos func- tion, time stamp setting, etc. • setting contents q during psk mode operation, push [f-3•decode] to select psk decode screen. W push [f-1•] to select psk decode menu 2, then push [f-6•set] to select psk decode set mode. • ...

  • Page 74

    4-27 d psk decode set mode (continued) 4 receive and transmit set the text color for transmitted characters. • the color is set in rgb format. • push [f-3• Ω ≈] to select r (red), g (green) and b (blue), and rotate the ratio from 0 to 255 range. • the set color is indicated in the box beside the rgb...

  • Page 75

    4-28 d data saving the contents of the psk memory and received signal can be saved into the cf memory card. Q during psk decode screen indication, push [f-1•] to select psk decode menu 2. W push [f-5•save] to select decode file save screen. E change the following conditions if desired. • file name: ...

  • Page 76: ■ Operating Am

    4-29 ■ operating am q push a band key to select the desired band. W push [am/fm] to select am. • “am” indicator appears. • after am mode is selected, push [am/fm] to toggle be- tween am and fm modes. E rotate the main dial to tune the desired frequency. • the s-meter indicates received signal streng...

  • Page 77

    4-30 d convenient functions for transmit • vox (voice operated transmit) (p. 6-2) ➥ push [vox/bk-in] to turn the vox function on and off. • “vox” appears when the vox function is set to on. • transmit quality monitor (p. 6-4) ➥ push [moni] to turn the monitor function on and off. • rotate [moni gain...

  • Page 78: ■ Operating Fm

    4-31 ■ operating fm q push a band key to select the desired band. W push [am/fm] to select fm. • “fm” indicator appears. • after fm mode is selected, push [am/fm] to toggle be- tween fm and am modes. E rotate the main dial to tune the desired frequency. • the s-meter indicates received signal streng...

  • Page 79: ■ Repeater Operation

    4-32 ■ repeater operation a repeater amplifies received signals and retransmits them at a different frequency. When using a repeater, the transmit frequency is shifted from the receive fre- quency by an offset frequency. A repeater can be ac- cessed using split frequency operation with the shift fre...

  • Page 80: ■ Tone Squelch Operation

    4-33 ■ tone squelch operation the tone squelch opens only when receiving a signal containing a matching subaudible tone. You can silently wait for calls from group members using the same tone. Q set the desired frequency band and select fm mode. W push [tone] to turn the tone squelch function on. • ...

  • Page 81

    4-34 ■ data mode (afsk) operation when operating amtor or packet with your tnc and/or pc software, consult the manual that comes with the tnc and/or the software. Q connect a pc and tnc to the transceiver. (p. 2-8) w push a band key to select the desired band. E push [ssb] or [am/fm] to select the d...

  • Page 82: Functions For Receive

    5-1 functions for receive section 5 ■ spectrum scope screen ……………………………………………… 5-2 d center mode ………………………………………………………… 5-2 d fix mode ……………………………………………………………… 5-3 d mini scope screen indication ……………………………………… 5-4 d scope set mode ……………………………………………………… 5-4 ■ preamplifier ……………………………………………………………… 5-...

  • Page 83: ■ Spectrum Scope Screen

    5-2 ■ spectrum scope screen this function allows you to display the conditions of the selected band, as well as relative strengths of signals. The ic-7800 has two modes for the spectrum indica- tion— one is center mode, and anther one is fix mode. In addition, the ic-7800 has a mini scope screen for...

  • Page 84

    5-3 d fix mode displays signals within the specified frequency range. The selected frequency band conditions can be grasped at a glance when using this mode. Q push [exit/set] several times to close a multi- function screen, if necessary. W push [f-1•scope] to select the scope screen. E push [f-5•ce...

  • Page 85

    5-4 d mini scope screen indication the mini scope screen can be displayed with another screen indication, such as set mode menu, decoder screen, memory list screen, etc. Simultaneously. Q set the scope mode (center or fix), marker, attenu- ator, span, etc. In advance. (pgs. 5-2, 5-3) w push [m.Scope...

  • Page 86

    5-5 d scope set mode (continued) 5 functions for receive turn the peak level holding function on and off. Select the center frequency of the spectrum scope indication (center mode only). • filter center : shows the selected filter’s center frequency at the center. • carrier point center : shows the ...

  • Page 87

    5-6 d scope set mode (continued) 5 functions for receive select the sweeping speed for the ±50 khz span selection from slow, mid and fast. Select the sweeping speed for the ±100 khz span selection from slow, mid and fast. Select the sweeping speed for the ±250 khz span selection from slow, mid and f...

  • Page 88

    5-7 d scope set mode (continued) 5 functions for receive set the scope edge frequencies for fix mode scope when 8 to 11 mhz band is selected. • set the frequencies within 8.000 to 11.000 mhz range in 1 khz steps. Up to 500 khz band width can be specified, so either edge frequency will be set to the ...

  • Page 89

    5-8 d scope set mode (continued) 5 functions for receive set the scope edge frequencies for fix mode scope when 30 to 45 mhz band is selected. • set the frequencies within 30.000 to 45.000 mhz range in 1 khz steps. Up to 500 khz band width can be specified, so either edge frequency will be set to th...

  • Page 90: ■ Preamplifier

    5-9 ■ preamplifier the preamp amplifies received signals in the front end circuit to improve the s/n ratio and sensitivity. Set this to preamp 1 or preamp 2 when receiving weak signals. ➥ push [p.Amp] several times to set the preamp off, preamp 1 on or preamp 2 on. For all hf bands high gain preamp ...

  • Page 91: ■ Rit Function

    5-10 ■ rit function the rit (receive increment tuning) function com- pensates for off-frequencies of the communicating station. The function shifts the receive frequency up to ±9.99 khz in 10 hz steps without moving the transmit frequency. Q push [rit] to turn the rit function on and off. • “ ” and ...

  • Page 92: ■ Agc Function

    5-11 ■ agc function the agc (auto gain control) controls receiver gain to produce a constant audio output level even when the received signal strength is varied by fading, etc. The transceiver has 3 agc characteristics (time con- stant; fast, mid, slow) for non-fm mode. The fm mode agc time constant...

  • Page 93: ■ Twin Pbt Operation

    5-12 ■ twin pbt operation general pbt (passband tuning) function electronically narrows the if passband width by shifting the if fre- quency to slightly outside of the if filter passband to reject interference. This transceiver uses the dsp cir- cuit for the pbt function. Moving both [twin pbt] cont...

  • Page 94: ■ If Filter Selection

    5-13 ■ if filter selection the transceiver has 3 passband width if filters for each mode. For ssb, cw and psk modes, the passband width can be set within 50 to 3600 hz in 50 or 100 hz steps. A total of 41 passband widths are available. For rtty mode, the passband width can be set within 50 to 2700 h...

  • Page 95

    5-14 d roofing filter selection the ic-7800 has 6 khz roofing filter. The roofing filter allows you an interference reduction from nearby strong signals. Q push [filter] for 1 sec. To enter filter set screen. W select any mode except fm. Epush [f-6•roofing] to select the desired filter from 15 khz (...

  • Page 96

    5-15 d filter shape set mode (continued) 5 functions for receive select the filter shape for cw mode in hf bands. The set filter shape is automatically used only when the if filter that 500 hz or narrower setting is set. Select the filter shape for cw mode in hf bands. The set filter shape is automa...

  • Page 97: ■ Dualwatch Operation

    5-16 ■ dualwatch operation dualwatch monitors 2 frequencies simultaneously. The ic-7800 has 2 independent receiver circuits to allow you to a dualwatch even in different frequency band and mode. Qset the desired frequency and mode into the main band. W push [dualwatch]. • “ ” appears. • pushing [dua...

  • Page 98: ■ Noise Blanker

    5-17 ■ noise blanker the noise blanker eliminates pulse-type noise such as from car ignitions. The noise blanker is not available for fm mode. Qpush [nb] to turn the noise blanker function on and off. • [nb] indicator above their switch lights green. Wrotate [nb] control to adjust the noise blanker ...

  • Page 99: ■ Noise Reduction

    5-18 ■ noise reduction the noise reduction function reduces noise compo- nents and picks out desired signals which are buried in noise. The received signals are converted to digital signals and then the desired signals are separated from the noise. Qpush the [nr] to turn the noise reduction on. • [n...

  • Page 100: ■ Notch Function

    5-19 ■ notch function this transceiver has auto and manual notch functions. The auto notch function automatically attenuates more than 3 beat tones, tuning signals, etc., even if they are moving. The manual notch can be set to attenuate a frequency via the [notch] control. The auto notch can be used...

  • Page 101: Functions For Transmit

    6-1 functions for transmit section 6 ■ vox function …………………………………………………………… 6-2 d using the vox function …………………………………………… 6-2 d adjusting the vox function ………………………………………… 6-2 d vox set mode ……………………………………………………… 6-2 ■ break-in function ………………………………………………………… 6-3 d semi break-in operation ………………………...

  • Page 102: ■ Vox Function

    6-2 ■ vox function the vox (voice-operated transmission) function switches between transmit and receive with your voice. This function provides an opportunity to input log en- tries into your computer, etc., while operating. D using the vox function q select a phone mode (ssb, am, fm). Wpush [vox/bk...

  • Page 103: ■ Break-In Function

    6-3 ■ break-in function the break-in function is used in cw mode to automat- ically toggle the transceiver between transmit and re- ceive when keying. The ic-7800 is capable for full break-in or semi break-in. D semi break-in operation during semi break-in operation, the transceiver selects transmit...

  • Page 104: ■ ∂Tx Function

    6-4 ■ ∂tx function the ∂tx function shifts the transmit frequency up to ±9.999 khz in 1 hz steps (10 hz steps when cancelling the 1 hz step readout) without moving the receive fre- quency. • see (3 on p. 1-11 for function description. Q push [∂tx]. • “ ” appears. W rotate [rit/∂tx]. Eto reset the ∂t...

  • Page 105: ■ Speech Compressor

    6-5 ■ transmit filter width setting (ssb only) the transmit filter width for ssb mode can be selected from wide, middle and narrow. ➥ during usb or lsb mode selection, push [comp] for 1 sec. Several times to select the desired trans- mit filter width from wide, middle and narrow. • the filter functi...

  • Page 106

    6-6 ■ split frequency operation split frequency operation allows you to transmit and receive in the same mode on two different frequencies. The split frequency operation is basically performed using 2 frequencies on the main and sub readouts. The following is an example of setting 21.290 mhz for rec...

  • Page 107: ■ Quick Split Function

    6-7 ■ quick split function when you find a dx station, an important considera- tion is how to set the split frequency. When you push the [split] switch for 1 sec., split fre- quency operation is turned on, the sub readout is equalized to the main readout frequency and enters standby for transmit fre...

  • Page 108: Voice Recorder Functions

    7-1 voice recorder functions section 7 ■ about digital voice recorder …………………………………………… 7-2 ■ recording a received audio …………………………………………… 7-3 d basic recording ……………………………………………………… 7-3 d one-touch recording ………………………………………………… 7-3 ■ playing the recorded audio …………………………………………… 7-4 d basic playing ...

  • Page 109

    7-2 ■ about digital voice recorder the ic-7800 has digital voice memories, up to 4 chan- nels for transmit, and up to 20 channels for receive. A maximum message length of 30 sec. Can be recorded into a receive channel and the total message length of up to 209 sec., and a total message length of up t...

  • Page 110

    7-3 ■ recording a received audio up to 20 channels of receive voice memories are available in the ic-7800. And the total audio length of up to 209 sec. Can be recorded in receive channels. However, the maximum recordable length into a channel is 30 sec. This voice recorder records not only the recei...

  • Page 111

    7-4 ■ playing the recorded audio d basic playing qpush [exit/set] several times to close a multi-func- tion screen, if necessary. Wpush [f-2•voice] to call up the voice recorder screen. • previously selected screen, tx or rx memory, is dis- played. If the tx memory channel (t1–t4) appears, push [f-7...

  • Page 112

    7-5 ■ protect the recorded contents the protect function is available to protect the recorded contents from accidental erasing, such as over-record, etc. Q call up the voice recorder screen, rx memory. Wpush [f-1•y] or [f-2•z] to select the desired voice memory. Epush [f-4•protect] to turn the prote...

  • Page 113

    7-6 ■ recording a message for transmit to transmit a message using a voice recorder, record the desired message in advance as described below. The ic-7800 has digital voice memories for transmis- sion, up to 4 channels and the total message length of up to 99 sec. Can be recorded. D recording qpush ...

  • Page 115

    7-8 ■ sending a recorded message qpush [exit/set] several times to close a multi-func- tion screen, if necessary. Wselect a phone mode by pushing [ssb] or [am/fm]. Epush [f-2•voice] to call up the voice recorder screen. • if the receive voice memory channel appears, push [f-7•t/r] to select tx memor...

  • Page 116: ■ Voice Set Mode

    7-9 ■ voice set mode sets the automatic monitor function, short play and normal recording times for voice recorder. Qpush [exit/set] several times to close a multi-func- tion screen, if necessary. Wpush [f-2•voice] to call up the voice recorder screen. E push [exit/set] to select voice recorder menu...

  • Page 117

    7-10 ■ saving a voice memory into the cf memory card d saving the received audio memory the recorded rx memory contents can be saved into the cf (compact flash) memory card. Q during voice recorder rx memory screen indica- tion, push [f-6•save] to select voice file save screen. • previously selected...

  • Page 118: Memory Operation

    8-1 memory operation section 8 ■ memory channels ……………………………………………………… 8-2 ■ memory channel selection …………………………………………… 8-2 d using the [y]/[z] keys ……………………………………………… 8-2 d using the keypad …………………………………………………… 8-2 ■ memory list screen ……………………………………………………… 8-3 d selecting a memory channel using th...

  • Page 119: ■ Memory Channels

    8-2 ■ memory channels the transceiver has 101 memory channels. The mem- ory mode is very useful for quickly changing to often- used frequencies. All 101 memory channels are tuneable which means the programmed frequency can be tuned temporarily with the main dial, etc. In memory mode. ■ memory channe...

  • Page 120: ■ Memory List Screen

    8-3 ■ memory list screen the memory list screen simultaneously shows 9 mem- ory channels and their programmed contents. 15 mem- ory channels can be displayed in the wide memory list screen. You can select a desired memory channel from mem- ory list screen. D selecting a memory channel using the memo...

  • Page 121

    8-4 ■ memory channel programming memory channel programming can be preformed ei- ther in vfo mode or in memory mode. D programming in vfo mode qset the desired frequency, operating mode and fil- ter width in vfo mode. Wpush [y]/[z] several times to select the desired memory channel. • memory list sc...

  • Page 122: ■ Frequency Transferring

    8-5 ■ frequency transferring the frequency and operating mode in a memory chan- nel can be transferred to the vfo. Frequency transferring can be performed in either vfo mode or memory mode. D transferring in vfo mode this is useful for transferring programmed contents to vfo. Q select vfo mode with ...

  • Page 124: ■ Memo Pads

    8-7 ■ memo pads the transceiver has a memo pad function to store fre- quency and operating mode for easy write and recall. The memo pads are separate from memory channels. The default number of memo pads is 5, however, this can be increased to 10 in set mode if desired. (p. 12- 16) memo pads are con...

  • Page 125: Scans

    9-1 scans section 9 ■ scan types ……………………………………………………………… 9-2 ■ preparation ……………………………………………………………… 9-2 ■ voice squelch control function ………………………………………… 9-3 ■ scan set mode ………………………………………………………… 9-3 ■ programmed scan operation ………………………………………… 9-4 ■ ∂f scan operation ……………………………………………………… 9-4 ■ f...

  • Page 126: ■ Scan Types

    9-2 ■ scan types • the scan function can be used on the main read- out only. • you can operate a scan while operating on a fre- quency using the dualwatch or split functions. Programmed scan repeatedly scans between two scan edge frequencies (scan edge memory channels p1 and p2). This scan operates ...

  • Page 127: ■ Scan Set Mode

    9-3 ■ voice squelch control function this function is useful when you don’t want unmodu- lated signals pausing or cancelling a scan. When the voice squelch control function is activated, the receiver checks received signals for voice components. If a receiver signal includes voice components, and th...

  • Page 128: ■ ∂F Scan Operation

    9-4 ■ programmed scan operation qpush [exit/set] several times to close a multi-func- tion screen, if necessary. W select vfo mode. E select the desired operating mode. • the operating mode can also be changed while scan- ning. R push [f-5•scan] to select the scan screen. T set the main band’s [sql]...

  • Page 129

    9-5 ■ fine programmed scan/fine ∂f scan fine scan functions as programmed or ∂f scan, but scan speed decreases when the squelch opens but does not stop. The scanning tuning step shifts from 50 hz to 10 hz while the squelch opens. Qpush [exit/set] several times to close a multi-func- tion screen, if ...

  • Page 130: ■ Memory Scan Operation

    9-6 ■ memory scan operation qpush [exit/set] several times to close a multi-func- tion screen, if necessary. W select memory mode. E push [f-5•scan] to select the scan screen. R set the main band’s [sql] open or closed. • see page 9-2 for squelch condition. T push [f-1•memo] to start the memory scan...

  • Page 131

    9-7 ■ setting select memory channels d setting in scan screen qpush [exit/set] several times to close a multi-func- tion screen, if necessary. W select memory mode. E push [f-5•scan] to select the scan screen. Rselect the desired memory channel to set as a se- lect memory channel. • [ y]/[z] keys an...

  • Page 132: ■ Tone Scan

    9-8 ■ tone scan the transceiver can detect the subaudible tone fre- quency in a received signal. By monitoring a signal that is being transmitted on a repeater input frequency, you can determine the tone frequency required to access the repeater. Qset the desired frequency or memory channel to be ch...

  • Page 133: Antenna Tuner Operation

    10-1 antenna tuner operation section 10 ■ antenna connection and selection ………………………………… 10-2 ■ antenna memory settings …………………………………………… 10-3 d antenna type selection …………………………………………… 10-3 d temporary memory ………………………………………………… 10-4 d antenna selection mode …………………………………………… 10-4 ■ antenna tuner o...

  • Page 134

    10-2 ■ antenna connection and selection the ic-7800 has 4 antenna connectors for the hf/50 mhz bands, [ant1], [ant2], [ant3], and [ant4]. For each operating band the ic-7800 covers, there is a band memory which can memorize a selected an- tenna. When you change the operating frequency be- yond a ban...

  • Page 135: ■ Antenna Memory Settings

    10-3 ■ antenna memory settings storing the antenna connector number for each fre- quency band to suit your antenna system. Qpush [exit/set] several times to close multi-func- tion screen, if necessary. W push [ant] for 1 sec. To select antenna set screen. E select the desired frequency band with a b...

  • Page 136

    10-4 ■ antenna memory settings (continued) d temporary memory the antenna temporary memory memorize the manu- ally selected antenna. The selected antenna will be re- called even the frequency band has been changed. Q select the antenna set screen. Wpush [f-4•temp-m] to turn the temporary memory on a...

  • Page 137: ■ Antenna Tuner Operation

    10-5 ■ antenna tuner operation the internal automatic antenna tuner matches the transceiver to the connected antenna automatically. Once the tuner matches an antenna, the variable ca- pacitor angles are memorized as a preset point for each frequency range (100 khz steps). Therefore, when you change ...

  • Page 138

    10-6 ■ antenna tuner operation (continued) • ptt tuner start the tuner is always tuned when the ptt is pushed after the frequency is changed (more than 1% from last-tuned frequency). This function removes the “push and hold [tuner]” operation and activates for the first transmission on a new frequen...

  • Page 139: Clock And Timers

    11-1 clock and timers section 11 ■ time set mode ………………………………………………………… 11-2 ■ daily timer setting ……………………………………………………… 11-3 ■ setting sleep timer …………………………………………………… 11-4 ■ timer operation ………………………………………………………… 11-4.

  • Page 140: ■ Time Set Mode

    11-2 ■ time set mode the ic-7800 has a built-in calender and 24-hour clock with daily power on/off timer functions. Before oper- ating these timer functions, set the current date and time, etc. Qpush [exit/set] to close multi-function screen, if necessary. W push [f-7•set] to select set mode menu sc...

  • Page 141: ■ Daily Timer Setting

    11-3 ■ daily timer setting the transceiver turns power on and/or off automat- ically on the specified day of the week and time with the specified frequency settings in each main and sub readout. Qpush [exit/set] several times to close multi-func- tion screen, if necessary. W push [timer] for 1 sec. ...

  • Page 142: ■ Setting Sleep Timer

    11-4 ■ setting sleep timer the sleep timer turns the transceiver power off au- tomatically after passing the set period. The timer can be set to 5–120 min. In 5 min. Steps. Qpush [exit/set] several times to close a multi-func- tion screen, if necessary. Wpush [timer] for 1 sec. To select timer set s...

  • Page 143: Set Mode

    12-1 set mode section 12 ■ set mode description ………………………………………………… 12-2 d set mode operation ………………………………………………… 12-2 d screen arrangement ……………………………………………… 12-3 ■ level set mode ………………………………………………………… 12-4 ■ acc set mode ………………………………………………………… 12-6 ■ display set mode …………………………………………………… 12-11 ■ ...

  • Page 144: ■ Set Mode Description

    12-2 ■ set mode description set mode is used for programming infrequently changed values or conditions of functions. The ic- 7800 has a level set mode, display set mode, timer set mode, accessory set mode and miscellaneous (others) set mode. D set mode operation q push [exit/set] several times to cl...

  • Page 145

    12-3 12 set mode d screen arrangement • set mode menu screen (p. 12-2) • level set mode (p. 12-4) • acc set mode (p. 12-6) • time set mode (p. 11-2) • display set mode (p. 12-11) • miscellaneous (others) set mode (p. 12-13) • cf card set menu (p. 12-21).

  • Page 146: ■ Level Set Mode

    12-4 12 set mode ■ level set mode sets the bass level of the transmit audio tone in ssb mode from –5 to +5. (default: 0) sets the treble level of the transmit audio tone in ssb mode from –5 to +5. (default: 0) sets the bass level of the transmit audio tone in am mode from –5 to +5. (default: 0) sets...

  • Page 147: ■ Level Set Mode

    12-5 12 set mode ■ level set mode (continued) sets the bass level of the receive audio tone in fm mode from –5 to +5. (default: 0) sets the treble level of the receive audio tone in fm mode from –5 to +5. (default: 0) sets the transmission passband width for wide setting by selecting the lower and h...

  • Page 148: ■ Level Set Mode

    12-6 12 set mode ■ level set mode (continued) sets the ratio for audio output level from the head- phone toward to the internal speaker within 0.60 to 1.40 range in 0.01 steps. (default: 1.00) selects the headphone audio output. • off : outputs the main band’s audio from the left, and sub band’s aud...

  • Page 149: ■ Acc Set Mode

    12-7 12 set mode sets the desired audio input level for modulation from [acc1–b]. • approx. 100 mv at 50% (default) setting. Sets the desired input level for modulation from [s/p dif], within 0 to 100% in 1% steps. (default: 50%) ■ acc set mode (continued) selects the desired connector(s) for modula...

  • Page 150: ■ Acc Set Mode

    12-8 12 set mode ■ acc set mode (continued) selects the desired band for the operating frequency band control signal output from (pin 4). • main : outputs the band signal displayed in main readout. • sub : outputs the band signal displayed in sub readout. • tx : outputs the band signal, that can be ...

  • Page 151: ■ Acc Set Mode

    12-9 12 set mode selects the switching relay type for [relay] from lead and mos-fet. Select the suitable relay type when connecting a non- icom linear amplifier. • lead : use mechanical relay. (16 v dc/0.5 a max.; default) • mos-fet : use semiconductor type relay. (200 ma/250 v max.) ■ acc set mode ...

  • Page 152: ■ Acc Set Mode

    12-10 12 set mode adjusts the internal reference signal frequency within 0 to 100% range in 1% steps during frequency cali- bration. (default: 50%) selects the transceiver’s reference signal condition from in, off and out. • in : use an external reference signal for the ic- 7800. • off : not input/o...

  • Page 153: ■ Display Set Mode

    12-11 12 set mode adjusts the lcd unit brightness within 0 (dark) to 100% (bright) range in 1% steps. (default: 50%) adjusts the switch indicators brightness within 1 (dark) to 100 (bright) range in 1 steps. (default: 80) selects the desired display type from a, b and c. (default: a) selects the des...

  • Page 154: ■ Display Set Mode

    12-12 12 set mode sets the desired 10-character text, such as your call sign, name, etc. The set text is indicated in the opening screen. Capital letters, small letters, numerals, some symbols (– / . @) and spaces can be used. Z push [f-5•edit] to select the name edit condition. • the 1st character ...

  • Page 155

    12-13 12 set mode ■ miscellaneous (others) set mode this item is used for a simple frequency check of the transceiver. (default: off) see p. 13-5 for calibration procedure. Note: turn the calibration marker off after checking the frequency of the transceiver. A beep sounds each time a switch is push...

  • Page 156

    12-14 12 set mode ■ miscellaneous (others) set mode (continued) sets the offset (difference between transmit and re- ceive frequencies) for the quick split function. How- ever, this setting is used for hf bands in fm mode only and is used to input the repeater offset for an hf band. The offset frequ...

  • Page 157

    12-15 12 set mode selects the transverter operation condition from auto and on. (default: auto) • on : turn the transverter operation on. • auto : the transceiver turns into transverter opera- tion condition when 2 to 13.8 v dc is applied to [acc2–a/b] pin 6. Sets the desired offset frequency for th...

  • Page 158

    12-16 12 set mode ■ miscellaneous (others) set mode (continued) selects the main dial function from main and main/sub. (default: main/sub) • main : the main dial functions only when ac- cessing to main readout. • main/sub : the main dial functions when access- ing to main readout, as well as when ac...

  • Page 159

    12-17 12 set mode selects [digi-sel] control function from digi-sel and apf. • digi-sel : [digi-sel] control functions as the digi- tal selector operation. (default) • apf : [digi-sel] control functions as the audio peak filter adjustment. Sets the rate at which frequencies are scanned when the micr...

  • Page 160

    12-18 12 set mode selects the displayed frequency shift function from on and off. (default: off) when this function is activated, the receiving signal can be kept to receive even when the operating mode is changed between ssb and cw. The frequency shifting value may differ according to the cw pitch ...

  • Page 161

    12-19 12 set mode ■ miscellaneous (others) set mode (continued) transceive operation is possible with the ic-7800 connected to other icom hf transceivers or receivers. When “on” is selected, changing the frequency, op- erating mode, etc. On the ic-7800 automatically changes those of connected transc...

  • Page 162

    12-20 12 set mode ■ miscellaneous (others) set mode (continued) sets subnet mask for the ic-7800. Turn the transceiver power off then on to effective the setting. Sets the repeating rate for the connected keyboard within 2.0 to 30.0 cps in 0.1 cps steps. (default: 10.9 cps) *cps=character per second...

  • Page 163: ■ Cf Card Set Menu

    12-21 ■ cf card set menu d cf card set screen arrangement • cf card set menu • setting load screen (p. 12-24) • load option set mode (p. 12-22) • format menu (p. 12-26) • setting save screen (p. 12-23) • save option set mode (p. 12-21) 12 set mode d save option set mode selects file saving condition...

  • Page 164

    12-22 d load option set mode 12 set mode selects file loading condition from all and select. (default: select) • all : loads and sets the all following contents. The following items cannot be selected. • select : loads and sets the selected contents only. Selects the antenna memory setting loading c...

  • Page 165: ■ File Saving

    12-23 12 set mode ■ file saving memory channel contents, set mode settings, etc. Can be saved into the cf (compact flash) memory card for backup. Q during set mode menu screen indication, push [f-7•cf card] to select cf card set menu screen. W push [f-2•save] to select setting save screen. E change ...

  • Page 166: ■ File Loading

    12-24 ■ file loading by loading the saved setting file from the cf card, you can easily set up another ic-7800— several operators settings can easily be re-set to one ic-7800. Q during set mode menu screen indication, push [f-7•cf card] to select cf card set menu screen. W push [f-1•load] to select ...

  • Page 167: ■ Changing The File Name

    12-25 ■ changing the file name the file name, saved in the cf card, can be re-named from the transceiver as desired. Q during setting save screen indication, push [f-1•dir/file] to selects tree view screen. • push [f-2• y] or [f-3•z] to select the desired folder. • “decode,” “setting” and “voice” fo...

  • Page 168: ■ Deleting A File

    12-26 ■ deleting a file recommendation! Deleted setting file never re- storable. Confirm the contents before deleting a set- ting file is recommended. Q during setting save screen indication, push [f- 1•dir/file] to select tree view screen. • push [f-2• y] or [f-3•z] to select the desired folder. • ...

  • Page 169: Maintenance

    13-1 maintenance section 13 ■ troubleshooting ……………………………………………………… 13-2 d transceiver power ………………………………………………… 13-2 d transmit and receive ……………………………………………… 13-2 d scanning …………………………………………………………… 13-3 d display ……………………………………………………………… 13-3 ■ main dial brake adjustment ………………………………………… 13-3 ■ vo...

  • Page 170: ■ Troubleshooting

    ■ troubleshooting the following chart is designed to help you correct problems which are not equipment malfunctions. If you are unable to locate the cause of a problem or solve it through the use of this chart, contact you near- est icom dealer or service center. D transceiver power d transmit and r...

  • Page 171

    13-3 d scanning d display ■ main dial brake adjustment the tension of the main dial may be adjusted to suit you preference. The brake adjustment is located on the bottom side of the front panel. See the figure at left. Slide the brake adjustment to comfortable tension level while turing the dial con...

  • Page 172: ■ Swr Reading

    13-4 ■ swr reading the swr meter indicates the swr over the transmis- sion line in all modes. Q push [tuner] to turn the antenna tuner off. W push [meter] for 1 sec. To display multi-function meter. E push [rtty/psk] once or twice to select rtty mode. R push [transmit]. T rotate [rf pwr] clockwise p...

  • Page 173: ■ Frequency Calibration

    13-5 ■ frequency calibration (approximate) a very accurate frequency counter is required to cali- brate the frequency of the transceiver. However, a rough check may be performed by receiving radio sta- tion wwvh, or other standard frequency signals. Caution: the ic-7800 has been thoroughly ad- juste...

  • Page 174

    13-6 ■ opening the transceiver’s case follow the case opening procedures shown here when you want to replace the clock backup battery or cir- cuitry fuse, caution!: disconnect the ac power cable from the transceiver before performing any work on the transceiver. Otherwise, there is danger of elec- t...

  • Page 175: ■ Fuse Replacement

    13-7 ■ fuse replacement when no external dc output is available from [ext dc] and acc connectors, the internal fuse may be damaged. Replace the fuse in this case. Warning: disconnect the ac power cable from the ac outlet before removing the transceiver’s cover. Q remove the bottom cover as shown lef...

  • Page 176

    13-8 ■ about protection indications the ic-7800 has a 2-step protection function to protect the power amplifiers as follow. The protector detects the power amplifier temperature and activates when the temperature becomes ex- tremely high. • power down transmission reduces the transmit output power t...

  • Page 177: Control Command

    14-1 control command section 14 ■ remote jack (ci-v) information ……………………………………… 14-2 d ci-v connection example ………………………………………… 14-2 d data format ………………………………………………………… 14-2 d command table …………………………………………………… 14-9 d to send/read memory contents …………………………………… 14-9 d band stacking register ………………...

  • Page 178

    14-2 ■ remote jack (ci-v) information d ci-v connection example the transceiver can be connected through an optional ct-17 ci - v level converter to a pc equipped with an rs-232c port. The icom communications interface-v (ci-v) controls the following functions of the trans- ceiver. Up to 4 icom ci-v...

  • Page 179

    14-3 d command table 14 control command command sub command description 00 — send frequency data 01 same as send mode data command 06 02 — read band edge frequencies 03 — read operating frequency 04 — read operating mode 05 — set operating frequency 06 00 select lsb 01 select usb 02 select am 03 sel...

  • Page 180

    14-4 d command table (continued) 14 control command command sub command description 15 01 read squelch condition 02 read s-meter level 11 read rf power meter 12 read swr meter 13 read alc meter 14 read comp meter 15 read v d meter 16 read i d meter 16 02 preamp (0=off; 1=preamp 1; 2=preamp 2) 12 agc...

  • Page 181

    14-5 d command table (continued) 14 control command command sub command description 1a 050035 send/read the band selection for operating frequency band signal output to acc-a. (0=main, 1=sub, 2=tx) 050036 send/read the band selection for operating frequency band signal output to acc-a. (0=main, 1=su...

  • Page 182

    14-6 d command table (continued) 14 control command command sub command description 1a 050087 send/read main dial function (0=main, 1=main+sub) 050088 send/read main dial auto ts (0=off, 1=low, 2=high) 050089 send/read sub dial auto ts (0=off, 1=low, 2=high) 050090 send/read mic. Up/down speed (0=lo...

  • Page 183

    14-7 d command table (continued) 14 control command command sub command description 1a 050137 send/read contest number style (0=normal, 1=190 →ano, 2=190 →ant, 3=90→no, 4=90 →nt) 050138 send/read count up trigger chan- nel (1=m1, 2=m2, 3=m3, 4=m4) 050139 send/read present number (1–9999) 050140 send...

  • Page 184

    D command table (continued) 14-8 14 control command command sub command description 1b 00 set/read repeater tone frequency (see p. 14-10 for details) 01 set/read tsql tone frequency (see p. 14-10 for details) 1c 00 set/read the transceiver’s condi- tion (0=rx; 1=tx) 01 set/read antenna tuner conditi...

  • Page 185

    14-9 14 control command d to send/read memory contents when sending or reading memory contents, additional code as follows must be added to appoint the memory channel. ➥ additional code: 0000–0101 (0100=p1, 0101=p2) d band stacking register to send or read the desired band stacking register ’s conte...

  • Page 186

    14-10 14 control command d offset frequency setting the following data sequence is used when sending or reading the offset frequency setting. D repeater tone/tone squelch frequency setting the following data sequence is used when sending or reading the tone frequency setting. D ssb transmission pass...

  • Page 187: Specifications And Options

    15-1 specifications and options section 15 ■ specifications ………………………………………………………… 15-2 d general ……………………………………………………………… 15-2 d transmitter ………………………………………………………… 15-2 d receiver …………………………………………………………… 15-3 d antenna tuner ……………………………………………………… 15-3 ■ options ………………………………………………………………… 15-4.

  • Page 188: ■ Specifications

    15-2 ■ specifications d general • frequency coverage (unit: mhz) : receiver 0.030000–60.000000* 1 transmitter 1.800000–1.999999* 2 , 3.500000–3.999999* 2 , 5.330500* 3 , 5.346500* 3 , 5.366500* 3 , 5.371500* 3 , 5.403500* 3 , 7.000000–7.300000* 2 , 10.100000–10.150000* 2 , 14.000000–14.350000* 2 , 1...

  • Page 189

    15-3 d receiver • receive system : double conversion superheterodyne system • intermediate frequencies : 1st 64.455 mhz (main band) 64.555 mhz (sub band) 2nd 36 khz • sensitivity : ssb, cw, rtty (bw=2.4 khz, 10 db s/n) 0.100–1.799 mhz 0.5 µv (pre-amp 1 on) 1.800–29.990 mhz 0.16 µv (pre-amp 1 on) 50....

  • Page 190: ■ Options

    15-4 ■ options • ic-pw1 hf /50 mh z all band 1 k w linear amplifier full-duty 1 kw linear amplifier including an automatic antenna tuner. Has automatic tuning and band selec- tion capability. Full break-in (qsk) operation is possi- ble. The amplifier/power supply unit and the remote control unit are...

  • Page 191

    Please record the serial number of your ic-7800 transceiver below for future servicing reference: serial number : date of purchase : place where purchased :.

  • Page 192

    1-1-32 kamiminami, hirano-ku, osaka 547-0003, japan.