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Icom IC-R2500 Instruction Manual

Other manuals for IC-R2500: Service Manual, Instruction Manual
Manual is about: COMMUNICATION RECEIVER

Summary of IC-R2500

  • Page 1

    Instruction manual ir2500 communication receiver this device complies with part 15 of the fcc rules. Operation is sub- ject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may ...

  • Page 2: Features

    I foreword thank you for purchasing this icom product. The ic-r2500 vhf / uhf fm receiver is designed and built with icom’s supe- rior technology and craftsmanship. With proper care, this prod- uct should provide you with years of trouble-free operation. We want to take a couple of moments of your t...

  • Page 3

    R warning! Never connect the receiver via the opc- 254l to an ac outlet. This may pose a fire hazard or result in an elec- tric shock. R warning! Never operate the receiver while driving a vehicle. Safe driving requires your full attention— anything less may result in an accident. Never connect the ...

  • Page 4

    Iii table of contents foreword ........................................................................................... I important ............................................................................................ I explicit definitions ....................................................

  • Page 5

    Iv 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ■ vsc function ................................................................................ 13 ■ if filter selection ........................................................................... 14 ■ if shift function ...............................................

  • Page 6: Connection

    1 connection 1 ■ rear panel connection d dc power supply connection use a 12 v dc power supply with at least 4 a capacity. Make sure the ground terminal of the dc power supply is grounded. • connecting to a dc power supply opc-254l (optional) black white r caution! Never remove the fuse- holders fro...

  • Page 7: Antennal Installation

    2 1 connection 2 d d opc-1156 connection q connect the controller plug to the opc-1156 joint. W detach the ferrite core from the controller cable, then at- tach it to the opc-1156 as shown below. • make sure to roll the cable to the ferrite core. E connect the opc-1156 plug to the [controller] con- ...

  • Page 8: Panel Discription

    3 panel discription 2 ■ front panel— controller q power key [pwr• ] ➥ turns the controller power on and off when pushed and held for 1 sec. ➥ continue to hold this key down for 2 sec. After power on to turn the lock function on and off. (p. 15) w set•skip key [set•skip] ➥ enters set mode when pushed...

  • Page 9

    4 2 panel description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 (p. ??) ➥ starts priority watch when pushed for 1 sec. (p. ??) y a main•agc key [main•agc] ➥ push to select the main band. (p. 11) ➥ push for 1 sec. To turn the agc (automatic gain con- trol) function on and off. (p. ??) y b main•nb key [m...

  • Page 10: Function Display

    5 2 panel description ■ function display q main indicator (p. 11) indicate the main band for transmit and function control. W receive mode indicators for analog shows the selected receive mode. • ssb (lsb/usb), cw, am and fm (fm/wfm) are available. E receive mode indicator for digital appears while ...

  • Page 11

    6 2 panel description 2 i skip indicators ((p. 28)) ➥ “ ~ ” appears when the displayed memory channel is specified as a skip channel. ➥ “ p ~ ” appears when the displayed frequency is speci- fied as a program skip frequency. I memory indicator (pgs. 12, 29) appears when memory mode is selected. O vs...

  • Page 12: Rear Panel—Main Unit

    7 2 panel description ■ rear panel—main unit front top rear power switch speaker data packet 1 usb ext sp ant 1 ant 2 dc in gnd packet 2 q w e r t y o i u 2-conductor 3.5 (d) mm ( 1 ⁄ 8 ˝)/100 k Ω packet jack connection 2-conductor 3.5 (d) mm ( 1 ⁄ 8 ˝)/8 Ω ext sp jack connection packet gnd sp gnd.

  • Page 13

    8 2 panel description 2 q antenna connector1 [ant1] connects a 50 Ω antenna with a bnc connector and a 50 Ω coaxial cable. W data jack [data] connect to a pc or gps receiver via the rs-232 cable (d- sub 9 pin) for data communication in the rs-232 format. E packet jacks [packet1/2] connect a tnc (ter...

  • Page 14: Setting A Frequency

    9 setting a frequency 3 ■ preparation d turning power on/off ➥ push [pwr• ] for 1 sec. To turn power on and off. D main band the ic-r2500 can receive 144 mhz and 430(440) mhz band signals simultaneously. ➥ push the desired band’s [main•agc] to select the main band. • “ q ” indicates the main band. D...

  • Page 15: Tuning Step Selection

    ■ tuning step selection when using the tuning dial to change the frequency, or when a scan function is activated, the frequency changes in incre- ments determined by the set tuning step. This can be changed if desired. The following tuning step are available. • 0.01 khz (10 hz) • 0.02 khz (20 hz) • ...

  • Page 16: Using The Tuning Dial

    11 3 setting a frequency ■ using the tuning dial q rotate the desired band’s [dial] to set the frequency. • if vfo mode is not selected, push the same band’s [vfo/mr•s.Mw] to select vfo mode. • the frequency changes in the selected tuning steps. (p. 14) w to change the frequency band or in 1 mhz (10...

  • Page 17: Basic Operation

    12 4 basic operation 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ■ receiving q set the audio level for the main band. ➥ push the desired band’s [main]. ➥ push [moni•t/t-scan] to open the squelch. ➥ rotate the main band’s [vol] to adjust the audio level. ➥ push [moni•t/t-scan] to close the squelch. W set ...

  • Page 18: Lock Functions

    ■ lock functions to prevent accidental frequency changes and unnecessary function access, use the lock function. ➥ continue to hold [set• ] down for 2 sec. After power on to turn the lock function on and off. • [moni•t/t-scan] (monitor function only), [vol], [sql], [main•agc] (main band selection on...

  • Page 19: Nb Function

    14 4 basic operation 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ■ nb function the nb (noise blanker) function removes pulse-type noise when ssb, cw or am mode is selected. ➥ push and hold [main•nb] for 1 sec. To toggle the nb func- tion on and off. • “nb-on” or “nb-of” appears for a moment when the nb f...

  • Page 20: Afc Function

    15 4 basic operation ■ afc function [ the afc (automatic frequency control) function tunes the displayed frequency automatically when an off-center fre- quency is received. It activates in fm mode and only when the selected if filter is 6 khz or 15 khz. Q select fm mode. W push [set•skip] to enter s...

  • Page 21: If Filter Selection

    16 4 basic operation 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ■ if filter selection [ the receiver has 2 to 4 passband width if filters for each mode. Selectable passband width are from 3, 6, 15, 50 and 230 (depending on the selected mode). • selectable passband width for each mode. Ssb mode : 3 (2.8 ...

  • Page 22: Duplex Operation

    17 4 basic operation duplex communication uses two different frequencies for transmitting and receiving. Generally, duplex is used in com- munication through a repeater, some utility communications, etc. During duplex operation, the transmit station frequency is shifted from the receive station freq...

  • Page 23

    18 4 basic operation 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 d d operation q set the receive station frequency (repeater output frequency) . W push [moni•t/t-scan] to monitor the transmit station fre- quency (repeater input frequency) directly. [moni¥t/t-scan] frequency shifts the offset frequency.

  • Page 24: Memory Operation

    19 memory operation 5 ■ general description the receiver has 1100 memory channels including 100 scan edge memory channels (50 pairs) for storage of often-used frequencies. And a total of 21 memory banks, a to h, j to r, t, u, w and y are available for storing groups of frequencies, etc. Up to 100 ch...

  • Page 25: Programming A Memory Channel

    20 5 memory operation 5 ■ programming a memory channel [example]: programming 145.800 mhz into memory channel 20 (blank channel). Push rotate for setting frequency, etc. Push for 1 sec. Rotate push for 1 sec. And continue to push ➠ beep “ beep beep beep “ “ “ “ “ beep beep “ “ s.Mw vfo/mr s.Mw vfo/m...

  • Page 26: Programming Channel Names

    21 5 memory operation [example]: programming “club” into memory channel 12. Select memory channel push for 1 sec. Rotate push for 1 sec. Beep beep beep “ “ “ “ “ s.Mw vfo/mr s.Mw vfo/mr s.Mw vfo/mr push twice set skip repeat the previous steps. Each memory channel can be programmed with an alphanu- ...

  • Page 27

    22 5 memory operation 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 • available characters d d to indicate the channel name [ the channel name indication can be set for independent memory channels. Q select the desired memory channel in the main band. ➥ push [vfo/mr•s.Mw] once or twice to select memory mod...

  • Page 28: Copying Memory Contents

    23 5 memory operation [example]: transferring memory channel 30 contents to vfo. Push to select memory mode. Rotate for selecting memory channel. Push for 3 sec. S.Mw vfo/mr s.Mw vfo/mr this function transfers a memory channel’s contents to vfo (or another memory channel). This is useful when search...

  • Page 29

    24 5 memory operation 5 d memory ➪ memory q select the desired band’s (left or right) memory channel to be transferred. ➥ push the desired band’s [vfo/mr•s.Mw] several times to select memory mode, then rotate the same band’s [dial] to select the desired memory channel. • “ ! ” and memory channel num...

  • Page 30: Memory Clearing

    5 memory operation 25 contents of programmed memories can be cleared (blanked), if desired. Q push [vfo/mr•s.Mw] to select vfo mode in the main band. W push the same band’s [vfo/mr•s.Mw] for 1 sec. To enter select memory write mode. • “ ! ” indicator and the memory channel number blink. E rotate the...

  • Page 31: Memory Bank Setting

    5 memory operation 26 5 ■ memory bank setting [ the ic-r2500 has a total of 21 banks (a to h, j to r, t, u, w, y). Regular memory channels, 0 to 999, may assigned into the desired bank for easy memory management. Q select the desired memory channel. ➥ push [vfo/mr•s.Mw] to select memory mode in the ...

  • Page 32: Memory Bank Selection

    27 5 memory operation ■ memory bank selection q push [vfo/mr•s.Mw] to select memory mode in the de- sired band (left or right). W push [mhz•ts] to enter memory type selection mode. E rotate [dial] to select the desired bank (a to h, j to r, t, u, w or y). • only programmed banks are displayed. R pus...

  • Page 33

    28 5 memory operation 5 w push [vfo/mr•s.Mw] for 1 sec. To enter select memory write mode. • “ ! ” indicator and the memory channel number blink. E push [set•skip] once to select “bank.” r rotate [dial] to select the desired bank indicator to trans- fer or erase. • push [att•prio] to toggle the bank...

  • Page 34: Scan Operation

    29 scan operation 6 ■ scan types scanning searches for signals automatically and makes it easier to locate new stations for contact or listening purposes. There are 5 scan types and 4 resume conditions to suit your operating needs. Full scan ((p. 26)) repeatedly scans all frequen- cies over the enti...

  • Page 35: Scan Start/stop

    30 6 scan operation 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ■ scan start/stop d preparation scan resume condition ((p. 29)); program the scan edges ((p. 27)); program two or more memory channels ((p. 17)); set skip settings ((p. 28)), if desired. D operation q push [vfo/mr•s.Mw] once or twice to sele...

  • Page 36: Scan Edges Programming

    31 6 scan operation scan edges can be programmed in the same manner as memory channels. Scan edges are programmed into scan edges, 0a/0b to 49a/49b, in memory channels. Q push the desired band’s [vfo/mr•s.Mw] once or twice to select vfo mode. W set the edge frequency of the desired frequency range: ...

  • Page 37: Skip Scan

    32 6 scan operation 6 d skip channel/frequency setting you can set the selected memory channel as a skip channel which is skipped during memory skip scan. In addition, it can be set as a skip channel for both memory skip scan and fre- quency skip scan. These are useful to speed up the scan in- terva...

  • Page 38: Scan Resume Condition

    33 6 scan operation the scan resume condition can be selected as timer or pause scan. The selected resume condition is also used for priority watch. (p. 47) q push [main•agc] (or [main•nb])to select the desired band (left or right) as the main band. W push [set•skip] to enter set mode. E push [set•s...

  • Page 39: Priority Watch

    34 7 priority watch 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ■ priority watch types priority watch checks for signals on the frequency every 5 sec. While operating on a vfo frequency or scanning. The receiver has two priority watch types to suit your needs. The watch resumes according to the selected ...

  • Page 40: Pocket Beep Operation

    35 pocket beep and tone squelch 8 this function uses subaudible tones for calling and can be used as a “common pager” to inform you that someone has called while you were away from the receiver. D waiting for a call from a specific station q set the operating frequency in fm mode. W push [set•skip] ...

  • Page 41

    36 8 pocket beep and tone squelch 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 i push any switch for the main band or common switch to exit tone squelch selection mode. O when a signal with the matched tone is received, the re- ceiver emits beep tones and blinks “ s ”. • beep tones sound for 30 sec. And “...

  • Page 42: Tone/dtcs Squelch Operation

    37 10 pocket beep and tone squelch the tone or dtcs squelch opens only when receiving a sig- nal with the same pre-programmed subaudible tone or dtcs code, respectively. You can silently wait for the specified sig- nal using the same tone. Q set the operating frequency in fm mode. W program the ctcs...

  • Page 43: Tone Scan

    38 10 pocket beep and tone squelch 10 ■ tone scan by monitoring a signal that is being operated with pocket beep, tone or dtcs squelch function, you can determine the tone frequency or dtcs code necessary to open a squelch. Q set the desired operating frequency or memory channel to be checked for a ...

  • Page 44: Set Mode

    † appears when accessing set mode from vfo mode only. ‡ appears when accessing set mode from memory mode only. : push : push • weather alert * 1 when the ut-106 is installed • display dimmer • auto power off • key-touch beep • beep output level • display color • tsql frequency • dtcs code • dtcs pol...

  • Page 45

    40 9 set mode 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 d d key-touch beep the key-touch beep can be turned off for silent operation. (default: on) even when this item is set to off, the power-on beep and pocket beep function still sound. The power-on beep can not be set to off. D d beep output level a...

  • Page 46

    41 9 set mode d d display contrast the lcd contrast can be adjusted through 9 levels. (default: 5) d d duplex direction sets the duplex direction. The displaying frequency shifts the programmed offset frequency (below) when monitor function is in use (pushing [moni•t/t-scan]). • off : simplex operat...

  • Page 47

    42 9 set mode 11 d d tone frequency sets subaudible tone frequency for tone squelch operation. Total of 51 tone frequencies (67.0–254.1 hz) are available. (default: 88.5 hz) • available tone frequency list d d dtcs code sets dtcs code for dtcs squelch operation. Total of 104 codes (023–754) are avai...

  • Page 48

    43 9 set mode d d vsc setting turns vsc (voice squelch control) function on and off. (default: off) d d scan resume timer selects scan resume timer from sct-15 (default), sct-10, sct-5 and scp-2. Scan resumes after the specified period when the received signal disappears. • sct-15/10/5 : scan pauses...

  • Page 49

    44 9 set mode 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 d d memory bank link function sets the memory bank link function on and off (default). The link function provides continuous banks scan, that scans all contents in the selected banks during bank scan. This item appears when set mode is accessed fr...

  • Page 50

    45 9 set mode d d if shift frequency setting select the if shift frequency up to ± 25 steps in 1 step (50 hz step). This item appears when the receive mode is selected ssb or cw mode. D d squelch delay selects squelch delay from short and long to prevent re- peated opening and closing of the squelch...

  • Page 51: Other Function

    46 10 other function 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16.

  • Page 52: Partial Reset

    49 10 other functions ■ partial reset if you want to initialize the operating conditions (vfo fre- quency, vfo settings, set mode contents) without clearing the memory contents, a partial resetting function is available for the receiver left and right bands independently. ➥ while pushing desired ban...

  • Page 53

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