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Icom IC-756PROII Instruction Manual

Other manuals for IC-756PROII: Instruction Manual, Service Manual
Manual is about: HF/50MHz ALL BAND TRANSCEIVER

Summary of IC-756PROII

  • Page 1

    Instruction manual hf/50 mhz all mode transceiver i756pro™.

  • Page 2

    I important read this instruction manual carefully before attempting to operate the transceiver. Save this instruction manual. This manual contains important safety and operating in- structions for the ic-756proii. Explicit definitions r warning high voltage! Never at- tach an antenna or internal an...

  • Page 3: Table of Contents

    Supplied accessories the transceiver comes with the following accessories. Qty. Q dc power cable (opc-025d) ............................ 1 w hand microphone (hm-36) ................................ 1 e spare fuses (fgb 30 a) .................................... 2 r spare fuse (fgb 5 a) ................

  • Page 4: Front Panel

    ■ front panel q power switch [power/timer] ➥ push momentarily to turn power on. • turn the optional dc power supply on in advance. • a/d convertor calibration of the dsp unit starts and it takes approx. 10 sec. ➥ push momentarily to toggle the timer function on and off. (p. 64) • the power switch li...

  • Page 5

    2 3 panel description i rf gain control/squelch control [rf/sql] (outer control) adjusts the rf gain and squelch threshold level. The squelch removes noise output from the speaker (closed condition) when no signal is re- ceived. • the squelch is particularly effective for fm. It is also available fo...

  • Page 6: Front Panel

    4 2 panel description ■ front panel (continued) !7 compression level control [comp] (p. 37) adjusts the speech compression level in ssb. !8 semi break-in delay control [bk-in delay] adjusts the transmit-to-receive switching delay time for cw semi break-in operation. !9 electronic cw keyer speed cont...

  • Page 7

    5 2 panel description ➥ transfers the memory contents to vfo when pushed for 1 sec. (p. 54) @8 main/sub change switch [change] ➥ switches the frequency and selected memory channel between main and sub readouts when pushed. • switches between transmit frequency and receive fre- quency when the split ...

  • Page 8: Front Panel

    ■ front panel (continued) #0 lock/speech switch [lock/speech] ➥ push momentarily to toggle the dial lock function on and off. (p. 46) ➥ push for 1 sec. To announces s-meter indication and the selected readout frequency when an op- tional ut-102 is installed. (p. 76) #1 rit/ ∂ ∂ tx control [rit/ ∂ ∂ ...

  • Page 9

    7 2 panel description #7 pbt clear switch [pbt clr] (p. 25) clears the pbt settings when pushed for 1 sec. • the [pbt clr] indicator lights when pbt is in use. #8 notch switch [notch] (p. 26) ➥ switches the notch function between auto, man- ual and off in ssb and am modes. ➥ turns the manual notch f...

  • Page 10: Front Panel

    8 2 panel description ■ front panel (continued) $8 lcd function display (see p. 10 for details.) shows the operating frequency, function switch menus, spectrum screen, memory channel screen, set mode settings, etc. $9 memory up/down switches [ y y ]/[ z z ] (p. 51) ➥ select the memory channel number...

  • Page 11: Microphone

    9 2 panel description • microphone connector (front panel view) • hm-36 schematic diagram 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. Y gnd (ptt groun...

  • Page 12: Lcd Display

    10 2 panel description ■ lcd display q tx indicator indicates the frequency readout for transmit. W vfo/memory channel indicator (pgs. 22, 51) indicates the vfo mode or selected memory chan- nel number. E select memory channel indicator (p. 60) indicates the displayed memory channel is set as a sele...

  • Page 13: Screen Menu Arrangement

    11 2 panel description att 0ff meter po p.Amp 1 bk-in off 1/4 off bw 2.4k sft 0 vfo fil2 cw qw:pp agc mid 1 tx vfo 1 usb cw cw fil2 qr.Qpp.Pp qr.Qpp.Pp --. ---. -- --. ---. -- scope voice keyer memory scan ant 1 bk-in bk-in off off 1/4 1/4 off off agc agc mid mid c q t e s t c q t e s t d e i c o m ...

  • Page 14: Rear Panel

    12 2 panel description ■ rear panel q receive antenna connector [rx ant] (p. 16) connects a 50 Ω general coverage antenna with an rca connector. W transverter jack [xvert] (p. 19) external transverter input/output jack. Activated by voltage applied to [acc(2)] pin 6. E tuner control socket [tuner] (...

  • Page 15

    13 2 panel description !2 antenna connector 1 [ant1] !3 antenna connector 2 [ant2] (pgs. 14, 15) accept a 50 Ω antenna with a pl-259 connector. When using an optional ah-4 hf/50 mhz auto- matic antenna tuner or ah-3 hf automatic an- tenna tuner , connect it to the [ant1] connector. The internal ante...

  • Page 16: Unpacking

    3 14 installation and connections ■ 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-756proii, see ‘supplied ac- cessories’ on p. 1 of this manual. ■ ...

  • Page 17: Required Connections

    3 15 installation and connections ■ required connections • front panel • rear panel timer power transmit phones elec-key mic tuner monitor nb nr af bal nr rf/sql mic gain rf power comp key speed bk-in delay lock tx rx twin pbt cw pitch f-1 f-2 f-3 f-4 f-5 speech lock rit/ tx tx rit clear split mp-w ...

  • Page 18: Advanced Connections

    ■ advanced connections • front panel • rear panel 16 3 installation and connections timer power transmit phones elec-key mic tuner monitor nb nr af bal nr rf/sql mic gain rf power comp key speed bk-in delay lock tx rx twin pbt cw pitch f-1 f-2 f-3 f-4 f-5 speech lock rit/ tx tx rit clear split mp-w ...

  • Page 19: Power Supply Connections

    17 3 installation and connections ■ power supply connections use an optional dc power supply with a 25 a capacity and above when operating the transceiver with ac power. Refer to the diagrams below. Caution: before connecting the dc power cable, check the following important items. Make sure: • the ...

  • Page 20: Linear Amplifier Connections

    18 3 installation and connections ■ linear amplifier connections use the [ant1] connector when connecting a linear amplifier. Connecting the ic-pw1 turn off the transceiver’s antenna tuner while tuning the ic-pw1’s tuner. To an antenna acc-1 ant ant2 ant1 acc(2) input1 input2 remote exciter 1 1&2 gn...

  • Page 21: Transverter Jack Information

    ■ external antenna tuner connection connecting the ah-4/ah-3 the ah-4 or ah-3 must be connected to [ant1]. 19 3 installation and connections when 2 to 13.8 v is applied to pin 6 of [acc(2)], the [xvert] jack is activated for transverter operation and the antenna connectors do not receive or trans- m...

  • Page 22

    20 3 installation and connections af input ground (gnd) ptt squelch input* rtty keying * connect the squelch line when required. Terminal unit (tu) or terminal node controller (tnc) [acc(1)] socket (rear panel view) 1 2 3 4 5 6 7 8 afsk output af input ground (gnd) ground (gnd) ptt squelch input* * ...

  • Page 23: Frequency Setting

    4 21 frequency setting before first applying power, make sure all connections required for your system are complete by referring to chapter 3. Then, reset the transceiver using the fol- lowing procedure. Resetting clears all programmed contents in memory channels and returns programmed values in set...

  • Page 24: Vfo Description

    22 4 frequency setting ■ vfo description vfo is an abbreviation of variable frequency oscilla- tor, and traditionally refers to an oscillator. The transceiver’s vfo is somewhat different. The vfo of the ic-756proii acts like a computer’s window and can show one frequency and one operating mode. You ...

  • Page 25

    23 4 frequency setting ■ direct frequency entry with the keypad ■ frequency setting with the tuning dial • for ham band use 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. (see “triple band stacking register” below.) w ro...

  • Page 26: Advanced Tuning Functions

    24 4 frequency setting ■ advanced tuning functions selecting the 1 hz step the minimum tuning step of 1 hz can be used for fine tuning. Q turn off the quick tuning step. • “ ▼ ” does not appear. W push [ts] for 1 sec. To toggle the 1 hz tuning step on and off. • rit and/or ∂ tx also functions in 1 h...

  • Page 27: Receive And Transmit

    5 25 receive and transmit ■ mode selection ■ 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...

  • Page 28: Notch Function

    26 5 receive and transmit ■ notch function this transceiver has auto and manual notch func- tions. The auto notch function automatically attenu- ates 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. ➥...

  • Page 29: Noise Blanker

    27 5 receive and transmit ■ noise blanker the noise blanker eliminates pulse-type noise such as from car ignitions. The noise blanker is not avail- able for fm mode. Q push the [nb] switch to turn the noise blanker on. • [nb] indicator lights. W push the [nb] switch for 1 sec. To enter to the noise ...

  • Page 30: Rtty Reverse Mode

    28 5 receive and transmit the transceiver has 5 rtty filters in addition to nor- mal if filters. The passband width can be selected from 1 khz, 500 hz, 350 hz, 300 hz and 250 hz. When the rtty filter is turned on, the rtty tuning meter can be used. (p. 42) moreover, the twin peak filter changes the ...

  • Page 31: Cw Pitch Control

    29 5 receive and transmit ■ cw pitch control the received cw audio pitch and monitored cw audio can be adjusted to suit your preferences (300 to 900 hz) without changing the operating frequency. The received cw audio pitch can be adjusted in 25 hz steps. The filter set mode screen graphically displa...

  • Page 32: Agc Function

    30 5 receive and transmit ■ 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 m...

  • Page 33: Dualwatch Operation

    31 5 receive and transmit ■ dualwatch operation dualwatch monitors 2 frequencies with the same mode simultaneously. During dualwatch, both frequencies should be on the same band, because the bandpass filter in the rf cir- cuit is selected for the main readout frequency. Q set a desired frequency. W ...

  • Page 34: Split Frequency Operation

    32 5 receive and transmit ■ split frequency operation split frequency operation allows you to transmit and receive in the same mode on two different frequen- cies. The split frequency operation is basically per- formed using 2 frequencies on the main and sub readouts. Following is an example of sett...

  • Page 35: Quick Split Function

    33 5 receive and transmit ■ 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 st...

  • Page 36: Rit and

    34 5 receive and transmit ■ rit and ∂ ∂ tx • rit function the rit function shifts the receive frequency up to ±9.999 khz in 1 hz steps (10 hz steps when can- celling the 1 hz step readout) without moving the transmit frequency. • see #2 on p. 6 for function description. Q push the [rit] switch. W ro...

  • Page 37: Monitor Function

    35 5 receive and transmit ■ monitor function the monitor function allows you to monitor your trans- mit if signals in any mode through the speaker. Use this to check voice characteristics while adjusting ssb transmit tones. (p. 66) the cw sidetone func- tions regardless of the [monitor] switch setti...

  • Page 38: Meter Function

    36 5 receive and transmit ■ meter function the transceiver has 4 transmit meter functions for your convenience. Select the desired meter with the [meter] switch. • analog transmit meter ➥ push [meter] to select rf power (po) , swr, alc or compression level (comp) for transmit metering. In addition, ...

  • Page 39: Speech Compressor

    37 5 receive and transmit ■ speech compressor the rf speech compressor increases average rf output power, improving signal strength and readabil- ity in ssb. • speech compressor q select usb or lsb mode. W push [comp] momentarily to turn the speech compressor on and off. E push [comp] for 1 sec. To ...

  • Page 40: Digital Voice Recorder

    38 5 receive and transmit ■ digital voice recorder the transceiver has a total of 8 memory channels, 4 each for transmit and receive, of digital voice memo- ries. A maximum message of 15 sec. Can be recorded in each receive channels, and total message of 90 sec. Can be recorded in transmit channels....

  • Page 41: Digital Voice Recorder

    39 5 receive and transmit • one-touch voice recording to records the receiving signal contents immediately, one-touch voice recording is available. Q push [rec/play] for 1 sec. During receiving a sig- nal to start recording. • “rec” flashes. • records audio into the channel r4. W push [rec/play] mom...

  • Page 42: Digital Voice Recorder

    Receive and transmit 5 40 ■ digital voice recorder (continued) • recording a message for transmit to transmit a message using a voice recorder, record the desired message in advance as described below. Q push [exit/set] several times to close a multi- function screen, if necessary. W push [(f-2)voic...

  • Page 43: Digital Voice Recorder

    41 5 receive and transmit ■ digital voice recorder (continued) • sending a message for transmit q push [exit/set] several times to close a multi- function screen, if necessary. W select a phone mode by pushing [ssb] or [am/fm]. E push [(f-2)voice] to call up the voice recorder screen. • if the recei...

  • Page 44: Rtty Decoder

    42 5 receive and transmit ■ rtty decoder the transceiver has an rtty decoder for baudot (mark freq.: 2125 hz, shift freq.: 170 hz, 45 bps). An external terminal unit (tu) or terminal node con- troller (tnc) is not necessary for receiving a baudot signal. Q push [exit/set] several times to close a mu...

  • Page 45: Electronic Cw Keyer

    43 5 receive and transmit ■ electronic cw keyer the transceiver has an electronic keyer. Keying speed can be adjusted with [key speed]. Keying weight, the ratio of dot : space : dash, can be set from 1 : 1 : 2.8 to 1 : 1 : 4.5 in keyer set mode. • setting the electronic keyer q push [exit/set] sever...

  • Page 46: Memory Keyer

    44 5 receive and transmit ■ memory keyer the memory keyer memorizes and can re-transmit 4 cw key codes for often-used cw sentences, antenna types, etc. Total capacity of the memory keyer is 55 characters in each memory channel. • programming the memory keyer q push [exit/set] several times, if neces...

  • Page 47: Spectrum Scope Screen

    45 5 receive and transmit ■ spectrum scope screen this function allows you to display the relative strengths of signals around the center frequency. The span can be set to ±12.5 khz, ±25 khz, ±50 khz and ±100 khz. Ideal for monitoring band conditions in an instant. Q push [exit/set] several times to...

  • Page 48: Automatic Antenna Selection

    46 5 receive and transmit ■ automatic antenna selection the transceiver covers 0.1–60 mhz over 10 bands. Each band key has a band memory which can mem- orize a selected antenna (ant1, ant2, ant1/rx an- tenna and ant2/rx antenna). When you change the operating frequency beyond a band, the previously ...

  • Page 49: Repeater Operation

    47 5 receive and transmit ■ 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 operati...

  • Page 50: Tone Squelch Operation

    48 5 receive and transmit ■ 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 push [vfo/memo] to select vfo mode. W push the desired band key. E push [am/fm] seve...

  • Page 51: Antenna Tuner Operation

    49 5 receive and transmit ■ 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). Theref...

  • Page 52

    50 5 receive and transmit ■ optional external tuner operation • ah-4/ah-3 hf automatic antenna tuner the ah-4/ah-3 matches the ic-756proii to a long wire antenna more than 3 m/10 ft long (3.5 mhz and above) or more than 12 m/40 ft long (1.8 mhz and above). • see p. 19 for the transceiver and ah-4/ah...

  • Page 53: Memory Operation

    6 51 memory operation ■ 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 tuning dial, etc. In memory m...

  • Page 54: Memory Channel Screen

    52 6 memory operation ■ memory channel screen the memory channel screen simultaneously shows 7 memory channels and their programmed contents. 13 memory channels can be displayed in the wide mem- ory channel screen. You can select a desired memory channel from the memory channel screen. • selecting a...

  • Page 55: Memory Channel Programming

    53 6 memory operation ■ memory channel programming memory channel programming can be preformed ei- ther in vfo mode or in memory mode. • programming in vfo mode q set the desired frequency and operating mode in vfo mode. W push [ y ]/[ z ] several times to select the desired memory channel. • memory...

  • Page 56: Frequency Transferring

    54 6 memory operation ■ 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. • transferring in vfo mode this is useful for transferring programmed contents to vfo. Q sel...

  • Page 58: Memo Pads

    56 6 memory operation ■ 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. 73) mem...

  • Page 59: Scans

    7 57 scans ■ scan types ■ preparation • channels for programmed scan: program scan edge frequencies into scan edge mem- ory channels p1 and p2. For ∂ f scan: set the ∂ f span ( ∂ f scan range) in the scan screen. For memory scan: program 2 or more memory channels except scan edge memory channels. Fo...

  • Page 60: Programmed Scan Operation

    58 7 scans ■ programmed scan operation q push [exit/set] several times to close a multi- function 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 [rf/sql] open...

  • Page 61: Fine Programmed Scan/fine

    59 7 scans ■ 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. Q push [exit/set] several times to close a multi- function sc...

  • Page 62: Select Memory Scan Operation

    60 7 scans ■ select memory scan operation q push [exit/set] several times to close a multi- function screen, if necessary. W select memory mode. E push [(f-5)scan] to select the scan screen. R set [rf/sql] open or closed. • see p. 57 for scan condition. • if the [rf/sql] control function is set as “...

  • Page 63: Scan Set Mode

    61 7 scans ■ scan set mode scan set mode is used for programming scanning speed and scan resume condition. • scan speed the transceiver has 2 speeds for scanning, high and low. Q push [exit/set] several times to close a multi- function screen, if necessary. W push [(f-5)scan] to select the scan scre...

  • Page 64: Tone Scan

    62 7 scans ■ 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 fre- quency, you can determine the tone frequency re- quired to access the repeater. Q set the desired frequency or memory chan...

  • Page 65: Clock And Timers

    8 63 clock and timers ■ setting the current time the transceiver has a built-in 24-hour clock with power-off and power-on timer functions. This is useful when logging qso’s and so on. The clock indication is always displayed except after pushing [f-inp]. Q push [exit/set] several times to close a mu...

  • Page 66: Setting Power-Off Period

    64 8 clock and timers ■ setting power-off period the transceiver can be set to turn off automatically after being activated via the power-on timer. The power-off period can be set to 5–120 min. In 5 min. Steps. Q push [exit/set] several times to close a multi- function screen, if necessary. W push [...

  • Page 67: Set Mode

    9 65 set mode ■ set mode description set mode is used for programming infrequently changed values or conditions of functions. This trans- ceiver has a level set mode, display set mode, timer set mode and miscellaneous (others) set mode. • set mode operation q push [exit/set] several times to close a...

  • Page 68: Level Set Mode

    66 9 set mode ■ level set mode s ss sb b t tx x t to on ne e ( (b ba as ss s) ) this item adjusts the bass level of the transmit audio tone in ssb mode from –5 db to +5 db in 1 db steps. 0 d b 0 db (default) s ss sb b t tx x t to on ne e ( (t tr re eb bl le e) ) this item adjusts the treble level of...

  • Page 69: Display Set Mode

    67 9 set mode ■ display set mode to adjust the lcd contrast or backlight, wait until the lcd becomes stable (10 min. Or more after turn- ing power on). This is an inherent characteristic of lcds and lcd backlights and does not indicate a transceiver malfunction. C co on nt tr ra as st t ( (l lc cd d...

  • Page 70: Display Set Mode

    68 9 set mode m my y c ca al ll l your call sign, etc. Can be displayed in the opening screen when turning power on. Up to 10 characters can be programmed. Capital letters, numerals, some symbols (– / . ) and spaces can be used. Q push [exit/set] several times to close a multi- function screen, if n...

  • Page 71: Timer Set Mode

    69 9 set mode ■ timer set mode t ti im me e ( (n no ow w) ) this item sets the current time for the built-in 24-hour clock. See p. 63 for details. 1 15 5: :0 00 0 push [(f-4)set] to enter the time. T ti im me er r f fu un nc ct ti io on n this item sets the timer functions on and off. When the power...

  • Page 72

    70 9 set mode ■ miscellaneous (others) set mode c ca al li ib br ra at ti io on n m ma ar rk ke er r this item is used for a simple frequency check of the transceiver. See p. 79 for calibration procedure. Turn the calibration marker off after checking the frequency of the transceiver. O on n calibra...

  • Page 73

    71 9 set mode ■ miscellaneous (others) set mode (continued) f fm m s sp pl li it t o of ff fs se et t( (h hf f) ) this item sets the offset (difference between transmit and receive frequencies) for the quick split function. However, this setting is used for hf bands in fm mode only and is used to in...

  • Page 74

    72 9 set mode ■ miscellaneous (others) set mode (continued) r rt tt ty y m ma ar rk k f fr re eq qu ue en nc cy y this item selects the rtty mark frequency. Rtty mark frequency is switched between 1275, 1615 and 2125 hz. 2 21 12 25 5 2125 hz rtty mark frequency (default) 1 12 27 75 5 1275 hz rtty ma...

  • Page 75

    73 9 set mode ■ miscellaneous (others) set mode (continued) r rt tt ty y d de ec co od de e n ne ew w l li in ne e c co od de e this item selects the new line code of the internal rtty decoder. See p. 42 for details. Cr : carriage return lf : line feed c cr r, ,l lf f, ,c cr r+ +l lf f cr, lf and cr...

  • Page 76

    74 9 set mode ■ miscellaneous (others) set mode (continued) s ss sb b/ /c cw w s sy yn nc ch hr ro on no ou us s t tu un ni in ng g this item selects the displaying frequency shift func- tion from on and off. When this function is activated, the receiving signal can be kept to receive even when the ...

  • Page 77

    75 9 set mode ■ miscellaneous (others) set mode (continued) c ci i- -v v b ba au ud d r ra at te e this item sets the data transfer rate. 300, 1200, 4800, 9600, 19200 bps and “auto” are available. When “auto” is selected, the baud rate is automati- cally set according to the connected controller or ...

  • Page 78: Option Installation

    10 76 option installation follow the case and cover opening procedures shown here when you want to install an optional unit or adjust the internal units, etc. Caution: disconnect the dc power cable from the transceiver before performing any work on the transceiver. Otherwise, there is danger of elec...

  • Page 79: Maintenance

    11 77 maintenance scan ■ 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 your near- est icom dealer or service center. Problem poss...

  • Page 80: Fuse Replacement

    78 11 maintenance ■ fuse replacement if a fuse blows or the transceiver stops functioning, try to find the source of the problem, and replace the dam- aged fuse with a new, rated fuse. Caution: disconnect the dc power cable from the transceiver when changing a fuse. The ic-756proii has 2 types of fu...

  • Page 81: Tuning Dial Brake Adjustment

    79 11 maintenance ■ tuning dial brake adjustment the tension of the tuning dial may be adjusted to suit your preference. The brake adjustment screw is located on the right side of the tuning dial. See the figure at right. Turn the brake adjustment screw clockwise or coun- terclockwise to obtain a co...

  • Page 82: Internal View

    12 80 internal view pa fuse (fgb 5 a) pa unit filter unit internal antenna tuner • top view rf unit pll unit space for optional voice synthesizer (ut-102) main unit clock backup battery spch optional voice synthesizer level adj. • bottom view.

  • Page 83: Control Command

    13 81 control command • ci-v connection example the transceiver can be connected through an optional ct-17 ci-v level converter to a personal computer equipped with an rs-232c port. The icom communi- cations interface-v (ci-v) controls the following func- tions of the transceiver. Up to 4 icom ci-v ...

  • Page 84

    82 13 control command • command table 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 frequency data 00 set lsb 01 set usb 02 set am 06 03 set cw 04 set rtty ...

  • Page 85: Specifications

    14 83 specifications • general • frequency coverage : (unit: mhz) usa and rx 0.030–60.000* 1 * 2 others tx 1.800– 1.999* 2 3.500– 3.999* 2 7.000– 7.300* 2 10.100–10.150* 2 14.000–14.350* 2 18.068–18.168* 2 21.000–21.450* 2 24.890–24.990* 2 28.000–29.700* 2 50.000–54.000* 2 europe (#23) rx 0.030–29.9...

  • Page 86: Options

    15 84 options ic-pw1 hf/50 mhz all band 1 kw linear amplifier full-duty 1 kw linear amplifier including an automatic antenna tuner. Has automatic tuning and band selection capability. Full break-in (qsk) oper- ation is possible. The amplifier/power supply unit and the remote control unit are separat...

  • Page 87: About Ce

    16 85 about ce installation notes for amateur base station installations it is recommended that the forwards clearance in front of the antenna array is calculated relative to the eirp (effective isotropic radiated power). The clearance height below the antenna array can be determined in most cases f...

  • Page 88

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