Icom IC-R2500 Instruction Manual
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Icom IC-R2500 Instruction Manual

Icom IC-R2500 Instruction Manual

Communication receiver
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INSTRUCTION MANUAL
COMMUNICATION RECEIVER
iR2500
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 cause undesired operation.

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Summary of Contents for Icom IC-R2500

  • Page 1 INSTRUCTION MANUAL COMMUNICATION RECEIVER iR2500 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 cause undesired operation.

  • Page 2: Foreword

    We want to take a couple of moments of your time to thank the IC-R2500. you for making your IC-R2500 your radio of choice, and hope you agree with Icom’s philosophy of “technology first.” Many hours of research and development went into the design of EXPLICIT DEFINITIONS your IC-R2500.

  • Page 3: Connection

    Changes or modifications to this device, not ex- NEVER connect the receiver to a power source using reverse po- pressly approved by Icom Inc., could void your authority to larity. This will damage the receiver. operate this device under FCC regulations.

  • Page 4: Table Of Contents

    SUPPLIED ACCESSORIES TABLE OF CONTENTS FOREWORD ................... i Supplied accessories is described in the IC-PCR1500/2500’s IMPORTANT .................... i Instruction manual. EXPLICIT DEFINITIONS ................. i PRECAUTIONS ..................ii SUPPLIED ACCESSORIES ..............iii SPECIFICATIONS SPECIFICATIONS ................. iii OPTIONS ....................iii TABLE OF CONTENTS ................. iii Specifications is described in the IC-PCR1500/2500’s In- struction manual.
  • Page 5 ■ VSC function ................13 ■ Weather channel operation ............42 ■ IF filter selection ................14 ■ DSP operation ................43 ■ IF shift function ................14 ■ DATA cloning ................44 ■ Duplex operation ................15 ■ Partial reset................... 45 ■...

  • Page 6: Connection

    CONNECTION ■ 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 The double sided tape is set to the antenna holder. grounded.

  • Page 7: Antenna Installation

    CONNECTION ■ Antennal installation 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- D Antenna location tach it to the OPC-1156 as shown below. To obtain maximum performance from the receiver, select a •...

  • Page 8: Panel Description

    PANEL DISCRIPTION ■ Front panel— controller Function display (pgs. 3, 4) MAIN MAIN SKIP VFO/MR VFO/MR S.MW S.MW iR2500 COMMUNICATIONS RECEIVER DIAL DIAL MONI MODE SCAN PRIO T/T-SCAN *The keys w to t are for the MAIN band only. q POWER KEY [PWR• lection mode.
  • Page 9 PANEL DESCRIPTION Left band Right band MAIN MAIN SKIP VFO/MR VFO/MR S.MW S.MW iR2500 COMMUNICATIONS RECEIVER DIAL DIAL MONI MODE SCAN PRIO T/T-SCAN *The same controls for both the left and right bands are arranged in symmetry. i MHz TUNING•TUNING STEP [MHz•TS] (p.

  • Page 10: Function Display-Controller

    PANEL DESCRIPTION ■ Function display Left band Right band *The same indications for both the left and right bands are arranged. q MAIN INDICATOR (p. 11) y FREQUENCY READOUT Indicate the main band for transmit and function control. Shows the operating frequency, channel names, set mode contents, etc.
  • Page 11 PANEL DESCRIPTION i SKIP INDICATORS ((p. 28)) !2 PRIORITY INDICATOR ((p. 30)) ➥ “~” appears when the displayed memory channel is Appears while the priority watch is activated; blinks while specified as a skip channel. the watch is paused. ➥ “ ~”...

  • Page 12: Rear Panel-Main Unit

    PANEL DESCRIPTION ■ Rear panel—main unit Speaker Rear Power switch DC IN PACKET 1 PACKET 2 ANT 1 ANT 2 EXT SP DATA Front PACKET jack connection EXT SP jack connection PACKET 2-conductor 3.5 (d) mm ( ⁄ ˝)/8 Ω 2-conductor 3.5 (d) mm ( ⁄...
  • Page 13 PANEL DESCRIPTION q ANTENNA CONNECTOR1 [ANT1] y EXTERNAL SPEAKER JACK [EXT SP] Connects a 50 Ω antenna with a BNC connector and a 50 Connects an 8 Ω external speaker. • Audio output power is more than 0.5 W. Ω coaxial cable. w DATA JACK [DATA] u CONTROLLER [CONTROLLER] Connect to a PC or GPS receiver via the RS-232 cable (D-...

  • Page 14: Setting A Frequency

    Push [PWR] for 1 sec. [VFO/MR¥S.MW] ➥ 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 ! indicator appears when [MAIN] memory mode is selected ➥...

  • Page 15: Tuning Step Selection

    SETTING A FREQUENCY ■ Tuning step selection eRotate the same band’s [DIAL] to select the desired tun- When using the tuning dial to change the frequency, or when ing step. a scan function is activated, the frequency changes in incre- ments determined by the set tuning step.

  • Page 16: Receive Mode Selection

    SETTING A FREQUENCY ■ Using the tuning dial ■ Receive mode selection Receive modes are determined by the physical properties of q Rotate the desired band’s [DIAL] to set the frequency. the radio signals. The receiver has 7 receive modes: LSB •...

  • Page 17: Basic Operation

    BASIC OPERATION ■ Receiving ■ Monitor function q Set the audio level for the main band. This function is used to listen to weak signals without disturb- ➥ Push the desired band’s [MAIN]. ing the squelch setting or to open the squelch manually even ➥...

  • Page 18: Lock Function

    BASIC OPERATION ■ Lock functions ■ Attenuator function To prevent accidental frequency changes and unnecessary The attenuator prevents a desired signal from distorting when function access, use the lock function. very strong signals are near the desired frequency or when very strong electric fields, such as from a broadcasting sta- ➥...

  • Page 19: Nb Function

    BASIC OPERATION ■ NB function ■ AGC function The NB (noise blanker) function removes pulse-type noise The AGC (Automatic Gain Control) function controls receiver when SSB, CW or AM mode is selected. gain to produce a constant audio output level even when the received signal strength is varied by fading, etc.

  • Page 20: Afc Function

    BASIC OPERATION ■ AFC function ■ VSC function The AFC (Automatic Frequency Control) function tunes the The VSC (Voice Squelch Control) function opens the squelch displayed frequency automatically when an off-center fre- only when receiving a modulated signal. This function is very quency is received.

  • Page 21: If Filter Selection

    BASIC OPERATION ■ IF filter selection ■ IF shift function The receiver has 2 to 4 passband width IF filters for each The IF shift function electronically changes the passband fre- mode. Selectable passband width are from 3, 6, 15, 50 and quency of the IF (Intermediate frequency) and cuts out higher 230 (depending on the selected mode).

  • Page 22: Duplex Operation

    BASIC OPERATION ■ Duplex operation rPush [SET•SKIP] once to select the offset frequency set- Duplex communication uses two different frequencies for transmitting and receiving. Generally, duplex is used in com- ting item. tRotate [DIAL] to set the desired offset frequency within munication through a repeater, some utility communications, etc.
  • Page 23 BASIC OPERATION D D Operation q Set the receive station frequency (repeater output frequency) wPush [MONI•T/T-SCAN] to monitor the transmit station fre- quency directly. (repeater input frequency) [MONI¥T/T-SCAN] Frequency shifts the offset frequency...

  • Page 24: Memory Operation

    MEMORY OPERATION ■ General description ■ Memory channel selection The receiver has 1100 memory channels including 100 scan q Push the desired band’s [VFO/MR•S.MW] once or twice edge memory channels (50 pairs) for storage of often-used to select memory mode. frequencies.

  • Page 25: Programming A Memory Channel

    MEMORY OPERATION ■ Programming a memory channel eRotate [DIAL] to select the memory channel to be pro- VFO settings, including the set mode contents such as sub- audible tone frequency, offset, scan skip information can be grammed. programmed into a memory channel. •...

  • Page 26: Programming Channel Names

    MEMORY OPERATION ■ Programming channel names e Push [SET•SKIP] several times to select the memory Each memory channel can be programmed with an alphanu- meric channel name for easy recognition and can be indicated name programming condition, “m nAmE.” independently by channel. Names can be a maximum of 6 •...
  • Page 27 MEMORY OPERATION D D To indicate the channel name • Available characters The channel name indication can be set for independent (space) memory channels. q Select the desired memory channel in the main band. ➥ Push [VFO/MR•S.MW] once or twice to select memory mode, then rotate [DIAL] to select the desired memory channel.

  • Page 28: Copying Memory Contents

    MEMORY OPERATION ■ Copying memory contents This function transfers a memory channel’s contents to VFO D Memory➪VFO (or another memory channel). This is useful when searching qSelect the desired band’s (left or right) memory channel to for signals around a memory channel frequency and for re- be transferred.
  • Page 29 MEMORY OPERATION D Memory➪memory e Rotate [DIAL] to select the target memory channel. qSelect the desired band’s (left or right) memory channel to • Scan edge channels, 0A/0B to 49A/49B can also be selected. be transferred. r Push and hold [VFO/MR•S.MW] for 1 sec. to transfer the ➥...

  • Page 30: Memory Clearing

    MEMORY OPERATION ■ Memory clearing r Push [SET•SKIP] three times to select “CLEAR,” then Contents of programmed memories can be cleared (blanked), if desired. push and hold [VFO/MR•S.MW] for 1 sec. • 3 beeps sound. q Push [VFO/MR•S.MW] to select VFO mode in the main •...

  • Page 31: Memory Bank Setting

    MEMORY OPERATION ■ Memory bank setting The IC-R2500 has a total of 21 banks (A to H, J to R, T, U, [SET•SKIP] W, Y). Regular memory channels, 0 to 999, may assigned into the desired bank for easy memory management.

  • Page 32: Memory Bank Selection

    MEMORY OPERATION ■ Memory bank selection ■ Transferring bank contents q Push [VFO/MR•S.MW] to select memory mode in the de- The bank contents of programmed memory channels can be sired band (left or right). cleared or transferred to another bank. w Push [MHz•TS] to enter memory type selection mode.
  • Page 33 MEMORY OPERATION w Push [VFO/MR•S.MW] for 1 sec. to enter select memory r Rotate [DIAL] to select the desired bank indicator to trans- write mode. fer or erase. • “!” indicator and the memory channel number blink. • Push [ATT•PRIO] to toggle the bank or bank channel selection. •...

  • Page 34: Scan Operation

    SCAN OPERATION ■ Scan types Scanning searches for signals automatically and makes it There are 5 scan types and 4 resume conditions to suit your easier to locate new stations for contact or listening purposes. operating needs. FULL SCAN Repeatedly scans all frequen- PROGRAMMED SCAN Repeatedly scans between ((p.

  • Page 35: Scan Start/Stop

    SCAN OPERATION ■ Scan start/stop D Preparation Scan resume condition ((p. 29)); program the scan edges IMPORTANT!: To perform memory or bank scan, two or ((p. 27)); program two or more memory channels ((p. 17)); set more memory/bank channels MUST be programmed, oth- skip settings ((p.

  • Page 36: Scan Edges Programming

    SCAN OPERATION ■ Scan edges programming r Rotate [DIAL] to select one of scan edge channel, 0A to Scan edges can be programmed in the same manner as memory channels. Scan edges are programmed into scan 49A. t Push and hold [VFO/MR•S.MW] for 1 sec. to program. edges, 0A/0B to 49A/49B, in memory channels.

  • Page 37: Skip Scan

    SCAN OPERATION ■ Skip scan D Skip channel/frequency setting D Skip scan setting You can set the selected memory channel as a skip channel q Push the main band’s [VFO/MR•S.MW] once or twice to which is skipped during memory skip scan. In addition, it can select VFO mode.

  • Page 38: Scan Resume Condition

    SCAN OPERATION ■ Scan resume condition SET MODE USING r Rotate the main band’s [DIAL] to set the desired timer: The scan resume condition can be selected as timer or pause scan. The selected resume condition is also used for priority •...

  • Page 39: Priority Watch

    PRIORITY WATCH ■ Priority watch types ■ Priority watch operation q Push the main band’s [VFO/MR•S.MW] once or twice to Priority watch checks for signals on the frequency every select VFO mode; then set an operating frequency. 5 sec. while operating on a VFO frequency or scanning. The w Set the watching channel(s).

  • Page 40: Pocket Beep And Tone Squelch

    POCKET BEEP AND TONE SQUELCH ■ Pocket beep operation t When operating the pocket beep function with DTCS code This function uses subaudible tones for calling and can be used as a “common pager” to inform you that someone has squelch, push [SET•SKIP] once then rotate [DIAL] to se- called while you were away from the receiver.
  • Page 41 POCKET BEEP AND TONE SQUELCH i Push any switch for the main band or common switch to D Available tone frequency list exit tone squelch selection mode. 67.0 79.7 097.4 118.8 146.2 167.9 186.2 206.5 241.8 69.3 82.5 100.0 123.0 151.4 171.3 189.9...

  • Page 42: Tone/Dtcs Squelch Operation

    POCKET BEEP AND TONE SQUELCH ■ Tone/DTCS squelch operation r When a signal with the matched tone is received, the The tone or DTCS squelch opens only when receiving a sig- nal with the same pre-programmed subaudible tone or DTCS squelch opens and the receiver emits audio.

  • Page 43: Tone Scan

    POCKET BEEP AND TONE SQUELCH ■ Tone scan By monitoring a signal that is being operated with pocket beep, tone or DTCS squelch function, you can determine the r When the CTCSS tone frequency or 3-digit DTCS code is tone frequency or DTCS code necessary to open a squelch. matched, the squelch opens and the tone frequency is q Set the desired operating frequency or memory channel to temporarily programmed into the selected condition such...

  • Page 44: Set Mode

    SET MODE ■ Set mode r Rotate the main band’s [DIAL] to select the condition or value. t Push any switch for main band or common switch other • Set mode operation than [SET•SKIP] or [ATT•PRIO] to exit set mode. q Push the desired band’s [MAIN] to select the main band.
  • Page 45 SET MODE D D Key-touch beep D D Auto power OFF The key-touch beep can be turned OFF for silent operation. The receiver can be set to automatically turn OFF with a beep (default: ON) after a specified period when no key operations are per- formed.
  • Page 46 SET MODE D D Display contrast D D Offset frequency The LCD contrast can be adjusted through 9 levels. Sets the duplex offset frequency for each frequency band in- (default: 5) dependently within 0 to 1000 MHz range. During duplex op- eration (DUP–...
  • Page 47 SET MODE D D Tone frequency D D DTCS code Sets subaudible tone frequency for tone squelch operation. Sets DTCS code for DTCS squelch operation. Total of 104 Total of 51 tone frequencies (67.0–254.1 Hz) are available. codes (023–754) are available. (default: 023) (default: 88.5 Hz) •...
  • Page 48 SET MODE D D VSC setting D D Program scan skip setting Turns VSC (Voice Squelch Control) function ON and OFF. Sets the program scan skip setting ON and OFF for VFO (default: OFF) scan operation, such as programmed scan. (default: ON) This item appears when set mode is accessed from VFO mode only.
  • Page 49 SET MODE D D Memory bank link function D D AFC setting Sets the memory bank link function ON and OFF (default). The link function provides continuous banks scan, that scans Turns AFC (Automatic Frequency Control) function ON and all contents in the selected banks during bank scan. OFF.
  • Page 50 SET MODE D D IF shift frequency setting D D ANF setting Select the IF shift frequency up to ±25 steps in 1 step (50 Hz Turns ANF (Automatic Notch Filter) function ON and OFF. step). The ANF function automatically attenuates up to 3 beat tones, This item appears when the receive mode is selected SSB or tuning signals, etc.
  • Page 51 OTHER FUNCTION...

  • Page 52: Other Functions

    OTHER FUNCTIONS ■ Partial reset ■ ALL reset POWER ON POWER ON If you want to initialize the operating conditions (VFO fre- The function display may occasionally display erroneous in- quency, VFO settings, set mode contents) without clearing formation (e.g. when first applying power). This may be the memory contents, a partial resetting function is available caused externally by static electricity or by other factors.
  • Page 53 1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan...

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