Page 2 - FOREWORD; FEATURES; ANF and NR functions are available; IMPORTANT; READ ALL INSTRUCTIONS; SAVE THIS INSTRUCTION MANUAL—; EXPLICIT DEFINITIONS; WORD
i FOREWORD Thank you for purchasing this Icom receiver. The IC-R2500 COMMUNICATIONS RECEIVER is designed and built with Icom’s state of the art technology and craftsmanship. With propercare, this receiver should provide you with years of trouble-free operation. We want to take a couple of moments of...
Page 3 - SPECIFICATIONS
ii SUPPLIED ACCESSORIES q Antenna …………………………………………………… 1 w AC adapter* ……………………………………………… 1 e USB cable ………………………………………………… 1 r CD ………………………………………………………… 1 t Foot pad sheet……………………………………………… 1 y Cable hanger ……………………………………………… 1 *Not supplied with some versions. y t r e q w OPTIONS UT-106* DSP UNIT ...
Page 4 - PRECAUTIONS
iii R WARNING! NEVER connect the receiver via the OPC-254L to an AC outlet. This may pose a fire hazard or re-sult in an electric shock. R WARNING! NEVER operate the receiver while dri- ving a vehicle. Safe driving requires your full attention— any-thing less may result in an accident. NEVER connect...
Page 5 - ABOUT APCO PROJECT 25
iv ABOUT APCO PROJECT 25 This device made under license under one or more of the fol-lowing US patents: #4,590,473, #4,636,791, #5,148,482,#5,185,796, #5,271,017, #5,377,229. The IMBE™ voice coding technology embodied in this productis protected by intellectual property rights including patentrights...
Page 6 - TABLE OF CONTENTS; Weather channel operation
v TABLE OF CONTENTS FOREWORD .............................................................. iIMPORTANT ............................................................... iEXPLICIT DEFINITIONS ............................................ iSUPPLIED ACCESSORIES ...................................... iiSPE...
Page 8 - CONNECTION; Rear panel connection; DC power supply connection; • CONNECTING TO A DC POWER SUPPLY; Or
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 isgrounded. • CONNECTING TO A DC POWER SUPPLY OPC-254L(optional) black white R CAUTION! NEVER remove the fuse- holders from ...
Page 9 - Antenna installation; Antenna location
2 1 CONNECTION 1 D D OPC-1156 connection q Connect the controller plug to the OPC-1156 jack. w Detach the ferrite core from the controller cable, then at-tach it to the OPC-1156 as shown below. • Make sure to wind the cable on the ferrite core. e Connect the OPC-1156 plug to the [CONTROLLER] con-nec...
Page 10 - PANEL DESCRIPTION; The keys; Front panel—controller
3 PANEL DESCRIPTION 2 MAIN AGC S.MW TS VFO/MR MHz MAIN NB S.MW VFO/MR TS MHz VOL VOL DIAL DIAL SQL SQL MONI T/T-SCAN MODE SCAN ATT PRIO COMMUNICATIONS RECEIVER iR2500 PWR SET SKIP Function display (pgs. 7, 8) q w e r t The keys w to t are for the main band only. ■ Front panel—controller
Page 12 - Left band
5 2 PANEL DESCRIPTION MAIN AGC S.MW TS VFO/MR MHz MAIN NB S.MW VFO/MR TS MHz VOL VOL DIAL DIAL SQL SQL MONI T/T-SCAN MODE SCAN ATT PRIO COMMUNICATIONS RECEIVER iR2500 PWR SET SKIP Left band Right band o o y b ui !0 y a ui !0 !1 !1 The same controls for both the left and right bands are arranged symm...
Page 14 - Function display
7 2 PANEL DESCRIPTION ■ Function display q MAIN INDICATOR (p. 11) Indicates the main band for 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 the digital ...
Page 15 - TONE INDICATORS; BUSY INDICATOR
8 2 PANEL DESCRIPTION 2 u SKIP INDICATORS (p. 36) ➥ “ ~ ” 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. 11, 23) Appears when memory mode is selected. o VSC ...
Page 16 - Rear panel—main unit; Front
9 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 q t i u y 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 AUDIO GND AUDIO GND...
Page 18 - SETTING A FREQUENCY; Preparation; MAIN band; VFO and memory modes
11 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 signals on both the left and rightbands simultaneously. ➥ Push the desired band’s [MAIN•AGC] or [MAIN•NB] to se-lect the main band. • “ Q ” indicates...
Page 19 - Tuning step selection
■ Tuning step selection When using the tuning dial to change the frequency, or whena scan function is activated, the frequency changes in incre-ments determined by the set tuning step. This can bechanged if desired. The following tuning step are available. • 0.01 kHz (10 Hz) • 0.02 kHz (20 Hz) • 0.0...
Page 20 - Using the tuning dial; Receive mode selection
13 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. 12) w To change the frequency band or tune in 1 MH...
Page 21 - BASIC OPERATION; Receiving; Monitor function
14 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 22 - Lock function; Continue to hold [PWR•; Attenuator function
■ Lock function To prevent accidental frequency changes and unintentionalfunction access, use the lock function. ➥ Continue to hold [PWR• ] 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 23 - NB function; AGC function
16 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 noisewhen SSB, CW or AM mode is selected. ➥ After pushing [MAIN] to select the desired band (left orright) as the main band, push and hold [MAIN•NB] for 1sec. to toggle the NB...
Page 24 - AFC function; VSC function
17 4 BASIC OPERATION ■ AFC function [ The AFC (Automatic Frequency Control) function tunes thedisplayed frequency automatically when an off-center fre-quency is received. It activates in FM mode and only whenthe selected IF filter is 6 kHz or 15 kHz. q Push the desired band’s [MAIN] to select the ma...
Page 25 - IF filter selection; • Selectable passband width for each mode.; IF shift function
18 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 IF passband filter widths for eachmode. Selectable passband widths are 3, 6, 15, 50 and 230(depending on the selected mode). • Selectable passband width for each mode. SSB mode : 3 (2.8 kHz) o...
Page 26 - Setting; Duplex operation
19 4 BASIC OPERATION Duplex communication uses two different frequencies fortransmitting and receiving. Generally, duplex is used in com-munication through a repeater, some utility communications,etc. During duplex operation, the transmit station frequency isshifted from the receive station frequenc...
Page 27 - Operation; Weather channel selection
20 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. ■ Weather channel operation (USA/CANADA versions only) D ...
Page 28 - Weather alert function
21 4 BASIC OPERATION D D Weather alert function NOAA broadcast stations transmit weather alert tones beforeimportant weather announcements. When the weather alertfunction is turned ON, the selected weather channel is moni-tored each 5 sec. for the announcement. When the alert sig-nal is detected, th...
Page 29 - Single band operation; Single band/Dualwatch operation; Diversity operation
22 4 BASIC OPERATION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ■ Single band operation D D Single band/Dualwatch operation Dualwatch operation monitors two frequencies simultane-ously. The IC-R2500 has two independent receiver circuits:left band, and right band (available frequencies, operating mode an...
Page 30 - MEMORY OPERATION; General description; Memory channel contents; Memory channel selection
23 MEMORY OPERATION 5 ■ General description The receiver has 1100 memory channels including 100 scanedge memory channels (50 pairs) for storage of often-usedfrequencies. 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 channe...
Page 31 - Programming a memory channel
24 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/MR S.MW VFO/MR Re...
Page 32 - Programming channel names
25 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 SETSKIP Repeat the previous steps. Each memory channel can be programmed with an alphanu-meric channe...
Page 33 - • Available characters; To indicate the channel name
26 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 independently foreach memory channel. q Select the desired memory channel in the main band. ➥ Push [VFO/MR•S.MW] once or twice to select memor...
Page 34 - Memory; Copying memory contents
27 5 MEMORY OPERATION [EXAMPLE]: Transferring the contents of memory channel 30 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 ...
Page 36 - NOTE: Be careful!— the contents of cleared memories; Memory clearing
5 MEMORY OPERATION 29 Contents of programmed memories can be cleared (erased),if desired. q Push [VFO/MR•S.MW] to select VFO mode in the mainband. w Push the same band’s [VFO/MR•S.MW] for 1 sec. to enterselect memory write mode. • “ ! ” indicator and the memory channel number blink. e Rotate the sam...
Page 37 - Memory bank setting
5 MEMORY OPERATION 30 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 assignedinto the desired bank for easy memory management. q Select the desired memory channel. ➥ Push [VFO/MR•S.MW] to select memory mode in themai...
Page 38 - Memory bank selection; • Memory bank indication; Transferring bank contents
31 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 the same band’s [DIAL] to select the desired bank(A to H, J to R, T, U, W or Y). • Only programmed banks are di...
Page 40 - SCAN OPERATION; Scan types; FULL SCAN
33 SCAN OPERATION 6 ■ Scan types Scanning searches for signals automatically and makes iteasier to locate new stations. There are 5 scan types and 4 resume conditions to suit youroperating needs. FULL SCAN (p. 34) Repeatedly scans all frequen-cies over the entire band. Some frequency ranges arenot s...
Page 41 - • During full scan
34 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. 37); program scan edges (p. 35);program two or more memory channels (p. 24); set skip set-tings (p. 36), if desired. D Operation q Push [VFO/MR•S.MW] once or twice to select VFO modef...
Page 42 - Scan edges programming
35 6 SCAN OPERATION Scan edges can be programmed in the same manner asmemory channels. Scan edges are programmed into scanedges, 0A/0B to 49A/49B, in memory channels. q Push the desired band’s [VFO/MR•S.MW] once or twiceto select VFO mode. w Set the edge frequency of the desired frequency range: ➥ S...
Page 43 - Skip channel/frequency setting; Skip scan setting; Skip scan
36 6 SCAN OPERATION 6 D Skip channel/frequency setting You can set the selected memory channel as a skip channelwhich is skipped during memory skip scan. In addition, it canbe set as a skip channel for both memory skip scan and fre-quency skip scan. These are useful to speed up the scan in-terval. q...
Page 44 - Scan resume condition
37 6 SCAN OPERATION The scan resume condition can be selected a timed timer orpause scan. The selected resume condition is also used forpriority watch. (p. 38) q Push [MAIN•AGC] (or [MAIN•NB]) to select the desiredband (left or right) as the main band. w Push [SET•SKIP] to enter set mode. e Push [SE...
Page 45 - PRIORITY WATCH; Priority watch types; MEMORY CHANNEL WATCH; MEMORY SCAN WATCH
38 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 every5 sec. while operating on a VFO frequency or scanning. Thereceiver has two priority watch types to suit your needs. The watch resumes according to the selected sc...
Page 46 - POCKET BEEP AND TONE SQUELCH; Waiting for a call from a specific station; Pocket beep operation
39 POCKET BEEP AND TONE SQUELCH 8 This function uses subaudible tones for calling and can beused as a “common pager” to inform you that someone hascalled 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] to...
Page 47 - Available tone frequency list
40 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 key for the main band or any of the shared keysbelow the display to exit tone squelch selection mode. o When a signal with a matching tone is received, the re-ceiver emits beep tones and blinks “ S .” • Beep tones so...
Page 48 - Reverse action for tone or DTCS squelch; Tone/DTCS squelch operation
41 8 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 DTCScode. You can silently wait for a signal using the same tone. q Set the operating frequency in FM mode. • Push [MAIN] to select the desired band (left or...
Page 49 - Tone scan
42 8 POCKET BEEP AND TONE SQUELCH 8 ■ Tone scan By monitoring a signal using with pocket beep, tone or DTCSsquelch, you can determine the tone frequency or DTCScode necessary to open the squelch. q Set the desired operating frequency or memory channel tobe checked for a tone frequency or code. • Pus...
Page 50 - DIGITAL MODE OPERATION; Digital mode operation
43 DIGITAL MODE OPERATION 9 ■ Digital mode operation The IC-R2500 can operate in DV* 1 mode or P25* 2 mode when the optional UT-118 or UT-122 is installed. * 1 : The optional UT-118 is required. * 2 : The optional UT-122 is required. Some versions come with the UT-122 installed. q Select the left ba...
Page 52 - Digital squelch operation
45 9 DIGITAL MODE OPERATION u Push any key for the main band or any of the shared keysbelow the display to exit tone squelch selection mode. i When a signal with a matching code/call sign is received,the receiver emits beep tones and blinks “ S ”. • Beep tones sound for 30 sec. and “ S ” blinks. To ...
Page 56 - General; • Set mode operation; Set mode items
• Display dimmer • Auto power OFF • Key-touch beep • Beep output level • Display color • Display contrast • Rx TGID indication • Rx Unit ID indication • Auto Rx ID display • Unit ID setting • TGID setting • NAC code setting • P25 unit power setting † Appears when accessing set mode from VFO mode onl...
Page 58 - Set mode items for DV mode
51 10 SET MODE These items appear when the UT-118 is installed, and Optional items setting is ON. • Digital monitor Return to set mode ((p. 49)) • Call sign setting • DV unit power setting • Digital code • Data speed • Standby beep • Rx Call sign display • Rx message display • Rx Call sign • GPS mes...
Page 59 - Beep output level
52 10 SET MODE 10 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 andpocket beep function still sound. The power-on beep cannot be set to OFF. D D Beep output level Adust the beep level from 1 to 9 for k...
Page 60 - Display color; Duplex direction
53 10 SET MODE D D Display color The display color can be set to amber (default) or green. D D Display contrast The LCD contrast can be adjusted through 9 levels. (default: 5) D D Duplex direction Sets the duplex direction. The displayed frequency shifts bythe programmed offset frequency (see next i...
Page 61 - Tone frequency; • Available tone frequency list; DTCS code; • Available DTCS code list; DTCS polarity
54 10 SET MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 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. T...
Page 62 - VSC setting; Program scan skip setting
55 10 SET MODE D D VSC setting Turns VSC (Voice Squelch Control) 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 periodwhen the received signal disappears. • SCT-15/10/5 : Scan pauses for 15/10...
Page 63 - Memory name setting; • Bank link setting
56 10 SET MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 D D Memory name setting Sets memory name appearance ON (appear) and OFF (doesnot appear; default).This item appears when set mode is accessed from memorymode only. D D Memory bank link function Sets the memory bank link function ON and OFF (defau...
Page 64 - AFC setting
57 10 SET MODE D D AFC setting Turns AFC (Automatic Frequency Control) function ON andOFF. (default: OFF) D D Filter setting Select the IF filter passband width from 3, 6, 15, 50 and 230kHz (depending on the selected mode.) D D Weather alert function Turns weather alert function ON and OFF. D D IF s...
Page 65 - Squelch delay; NR setting; This item appears when optional UT-106 is installed.
58 10 SET MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 D D Squelch delay Selects squelch delay to short or long to prevent repeatedopening and closing of the squelch during reception of thesame signal. • S : Short squelch delay. • L : Long squelch delay. D D ANF setting Turns ANF (Automatic Notch Fil...
Page 66 - DV unit power setting; Call sign setting
59 10 SET MODE D D DV unit power setting Selects the DV unit (UT-118) power setting from Auto andON. ☞ This item appears when optional UT-118 is installedand Optional items setting (p. 58) is ON. • At : DV unit is turned ON automatically when digital mode is selected. (default) • On : DV unit is tur...
Page 67 - Standby beep setting
60 10 SET MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 D D Standby beep setting Sets beep emission to ON or OFF when the receiving stationfinishes transmission or the receiving signal disappears. (default: ON) ☞ This item appears when optional UT-118 is installedand Optional items setting (p. 58) is ...
Page 68 - RX call sign indication
61 10 SET MODE D D RX call sign indication This item stores and indicates the newest received call sign.The received call sign is cleared once the receiver is turnedOFF. ☞ This item appears when optional UT-118 is installedand Optional items setting (p. 58) is ON. • Push [MODE•SCAN] (or [MONI•T/T-SC...
Page 69 - RX call sign with message indication
62 10 SET MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 D D RX call sign with message indication This item stores and indicates the newest received call signwith message. The received call sign is cleared once the re-ceiver is turned OFF. ☞ This item appears when optional UT-118 is installedand Option...
Page 70 - P25 unit power setting; NAC code setting
63 10 SET MODE D D P25 unit power setting Selects the P25 unit (UT-122) power setting from Auto andON. ☞ This item appears when optional UT-122 is installedand Optional items setting (p. 58) is ON. • At : P25 unit is turned ON automatically when digital mode is selected. (default) • On : P25 unit is...
Page 71 - Auto RX ID display
64 10 SET MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 D D Auto RX ID display When this setting is ON, transmitter’s ID is displayed auto-matically. (default: ON) ☞ This item appears when optional UT-122 is installedand Optional items setting (p. 58) is ON. D D RX Unit ID indication This item stores ...
Page 72 - OTHER FUNCTIONS; ANF function; NR function; DSP operation
65 OTHER FUNCTIONS 11 D D ANF function [ The ANF (Automatic Notch Filter) function automatically at-tenuates beat tones, tuning signals, etc., even if they’re fre-quency changes. This function can be activated in SSB, AM,FM modes. q Select any of SSB, AM or FM mode in the desired band(left or right)...
Page 73 - Cloning using a personal computer; Available functions; DATA cloning
66 11 OTHER FUNCTIONS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Cloning allows you to quickly and easily transfer the pro-grammed contents from a personal computer to a receiverusing the IC-PCR2500 control software. D Cloning using a personal computer Data can be cloned to and from a personal computer ...
Page 74 - Partial reset
67 11 OTHER FUNCTIONS ■ Partial reset If you want to initialize the operating conditions (VFO fre-quency, VFO settings, set mode contents) without clearingthe memory contents, a partial reset function is available. ➥ While pushing either band’s [VFO/MR•S.MW], turn thepower ON to partially reset the ...
Page 75 - Internal audio switch; DISCONNECT the AC adaptor or DC power; SPEAKER
68 11 OTHER FUNCTIONS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ■ Internal audio switch The internal switch must be set properly to use an externalspeaker, headphones or earphone. CAUTION: DISCONNECT the AC adaptor or DC power cable from the receiver Main unit before performing anywork on the receiver....
Page 76 - TROUBLESHOOTING; PROBLEM
69 TROUBLESHOOTING 12 PROBLEM POSSIBLE CAUSE SOLUTION REF. If your receiver seems to be malfunctioning, please check the following points before sending it to a service center. Does not turn on. No sound comes from thespeaker. Sensitivity is low and onlystrong signals are audible. Frequency cannot b...
Page 77 - DOC; DECLARATION
70 13 DOC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DECLARATION OF CONFORMITY We Icom Inc. Japan 1-1-32, Kamiminami, Hirano-kuOsaka 547-0003, Japan Declare on our sole responsibility that this equipment complies with theessential requirements of the Radio and Telecommunications TerminalEquipment Direct...
Page 78 - MEMO
