Icom IC-R75 Instruction Manual

Icom IC-R75 Manual

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  • Icom IC-R75 | Instruction Manual - Page 1
    INSTRUCTION MANUAL COMMUNICATIONS RECEIVER iR75
  • Icom IC-R75 | Instruction Manual - Page 2
    INSTRUCTION MANUAL CAREFULLY before attempting to operate the receiver. SAVE THIS INSTRUCTION MANUAL. This manual contains important safety and operating instructions for the IC-R75 of personal TRADEMARKS Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incorporated (Japan) in
  • Icom IC-R75 | Instruction Manual - Page 3
    and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Versions of the IC-R75 which display the "CE" symbol on the serial number
  • Icom IC-R75 | Instruction Manual - Page 4
    the following to reduce the noise. • Ground the receiver. • When another AC powered equipment is connected to the receiver, plug the AC adapter into a different AC outlet than the equipment. • Keep the AC adapter as far away from the receiver's antenna and any metal objects as possible. • Attach
  • Icom IC-R75 | Instruction Manual - Page 5
    UNIT 34 ■ UT-106 DSP UNIT 35 ■ Optional IF filters 35 11 MAINTENANCE 36 - 37 ■ Troubleshooting 36 ■ Resetting the CPU 36 ■ Fuse replacement 37 ■ Clock backup battery replacement 37 12 SPECIFICATIONS 38 13 OPTIONS 39 14 CONTROL COMMAND 40 - 43 ■ Remote jack (CI-V) information 40 
  • Icom IC-R75 | Instruction Manual - Page 6
    2 PANEL DESCRIPTION ■ Front panel Speaker Function display (p. 5) !8 !7 !6 !5 q w COMMUNICATIONS RECEIVER SSB CW/RTTY FIL AM FM TS 1 2 3 ABC DEF 4 5 6 GHI JKL MNO 7 8 9 PRS TUV WXY . 0 QZ ENT PHONES POWER AF RF/SQL TWIN PBT ANT SET CLOCK P.AMP ATT NR ANF NB AGC V/M MW CLR
  • Icom IC-R75 | Instruction Manual - Page 7
    set mode. !2 M EMORY WRITE SWITCH [MW] (pgs. 22, 27) ➥ Stores the displayed frequency and operating mode into the input digits while inputting a frequency or memory channel number. ➥ Clears the selected memory channel contents when TUNING STEP SWITCH [TS] (pgs. 12, 13) ➥ Selects a quick tuning
  • Icom IC-R75 | Instruction Manual - Page 8
    5) COMMUNICATIONS RECEIVER SSB CW/RTTY FIL AM FM TS 1 2 3 ABC DEF 4 5 6 GHI JKL MNO 7 8 9 PRS TUV WXY . 0 QZ ENT PHONES POWER AF . @4 A GC SWITCH [AGC] (p. 16) ➥ Toggles the AGC (Automatic Gain Control) time constant fast and slow when pushed. ➥ Toggles the AGC function ON and OFF
  • Icom IC-R75 | Instruction Manual - Page 9
    o !0 !1 !2 !3 !4 q TIMER INDICATOR (p. 28) Appears when power on/off timer or sleep timer is in use. w DSP UNIT INDICATOR (p. via an optional RS-R75. !3 MEMORY MODE INDICATOR receive signal strength. ➥ Shows the S-meter squelch level when used. u PREAMP INDICATOR (p. 16) Appears when antenna
  • Icom IC-R75 | Instruction Manual - Page 10
    . An RS-232C cable can be used to connect the receiver to a PC. In this way commands can be sent to the receiver via the PC. r CI-V REMOTE CONTROL JACK [REMOTE] Allows connection to an Icom CI-V system transceiver or another receiver for the transceive function. Also connects to a PC with several
  • Icom IC-R75 | Instruction Manual - Page 11
    An optional IC-MB5 mobile receiver has an adjustable stand for desktop use. Set the stand to one of two angles depending on your operating conditions. D Carrying handle An optional handle allows you to easily carry and transport the receiver. Attach the MB-23 carrying handle with the supplied
  • Icom IC-R75 | Instruction Manual - Page 12
    HEADPHONES COMMUNICATIONS RECEIVER SSB CW/RTTY FIL AM FM TS 1 2 3 ABC DEF 4 5 6 z JKL MNO 7 8 9 PRS TUV WXY . z 0 ENT PHONES POWER AF RF/SQL TWIN PBT ANT SET CLOCK P.AMP ATT NR ANF NB AGC V/M MW CLR SEL SCAN DN UP LOCK REMOTE (p. 9, 32) Used for computer control and
  • Icom IC-R75 | Instruction Manual - Page 13
    Ω antenna, use [ANT 1] connector for connection. When using a 500 Ω long wire antenna, control terminal, this jack can be used for recording control. (1 A/DC max.) IC-R75 [AUX IN] or [LINE IN] jack [REC REMOTE] [REC OUT] 350 mVrms 4.7 kΩ ■ Transceive function Icom CI-V transceivers or receivers
  • Icom IC-R75 | Instruction Manual - Page 14
    AF IN 2-conductor 3.5(d) plugs TU or TNC PC SQUELCH IN ■ Connecting to a PC The RS-R75 remote control software is available to perform data setting and remote control of the receiver. Refer to the diagram below for connection. D System requirements To use this program, the following hardware
  • Icom IC-R75 | Instruction Manual - Page 15
    me first The receiver uses memory channels for storage of frequencies (as well as mode, tuning steps, etc.). When turning power OFF or changing , you must program it into a memory channel by pushing [MW] for 2 sec. See p. 22 for details. ANT 1 AGC BLANK S1 3 5 7 9 20 40 60dB VFO "BLANK" appears
  • Icom IC-R75 | Instruction Manual - Page 16
    These tuning steps are: • Independently selectable for each mode • Selectable from 0.1, 1, 5, 6.25, 9, 10, 12.5, 20, 25, 100 kHz q S elect the desired operating mode with [SSB], [CW/RTTY], [AM] or [ S1 3 5 7 9 20 40 60dB VFO Rotating the tuning dial changes the frequency in 1 Hz steps. 12
  • Icom IC-R75 | Instruction Manual - Page 17
    D 1 MHz quick tuning step The quick tuning step function allows you to change the frequency in 1 MHz steps when rotating the tuning dial. Push [TS] one or more times until the 1 MHz tuning step indicator, "√," appears above the 1 MHz indicator. 4 FREQUENCY SETTING Quick tuning step indicator USB
  • Icom IC-R75 | Instruction Manual - Page 18
    5 RECEIVE FUNCTIONS ■ Mode selection The following modes are available in the IC-R75: SSB (LSB/USB), CW, CW REV (CW reverse), FM, AM, RTTY and RTTY REV (RTTY reverse). ➥ Push [SSB] to toggle between LSB and USB. ➥ Push [
  • Icom IC-R75 | Instruction Manual - Page 19
    5 RECEIVE FUNCTIONS ■ Twin PBT operation T h e t w i n P B T ( Pa s s b a n d Tu n i n g ) f u n c t i o n electronically narrows the IF passband widths to reduce interference. Moving both [TWIN PBT] controls to the same position shifts the IF. Variable range depends on the filter selection. ±1.29
  • Icom IC-R75 | Instruction Manual - Page 20
    The AGC (Automatic Gain Control) controls receiver gain to produce a constant audio output level even when the received signal strength is varied by OFF. ■ Antenna selection 2 types of antenna can be connected to this receiver. When 2 antennas are connected, select an antenna depending on the
  • Icom IC-R75 | Instruction Manual - Page 21
    Interference (600 Hz) (800 Hz) CW mode (USB side) Desired signal Interference (600 Hz) (400 Hz) CW REV mode (LSB side) ■ 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
  • Icom IC-R75 | Instruction Manual - Page 22
    5 RECEIVE FUNCTIONS ■ Filter selection The filter selection switches the IF passband width as shown in the table at right. The filter selection is automatically memorized in
  • Icom IC-R75 | Instruction Manual - Page 23
    5 RECEIVE FUNCTIONS ■ Filter set mode When an optional filter is installed, set the optional filters in filter set mode. Optional filters are not selected by default. D
  • Icom IC-R75 | Instruction Manual - Page 24
    function can be used. The noise reduction function reduces noise components and picks out desired signals which are buried in noise. The received AF signals are converted to digital signals and then the desired signals are separated from the noise. Noise reduction OFF Noise components Noise
  • Icom IC-R75 | Instruction Manual - Page 25
    The receiver has 101 memory channels. The memory 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 mode. MEMORY CHANNEL MEMORY CHANNEL NUMBER
  • Icom IC-R75 | Instruction Manual - Page 26
    into a memory channel. [EXAMPLE]: Programming 7.088 MHz/LSB into memory channel 12. USB R X ANT 1 AGC S1 3 5 7 9 20 40 60dB the memory channel. • Preamp setting, attenuator on/off, antenna selection, and AGC setting can also be programmed into a 22 ANT 1 AGC S1 3 5 7 9 20 40 60dB MEMO
  • Icom IC-R75 | Instruction Manual - Page 27
    6 MEMORY OPERATION ■ Frequency transferring The frequency and operating mode in a memory channel can be transferred to the VFO. D Transferring in VFO mode This is useful for transferring programmed contents to VFO. q S elect VFO mode with [V/M]. w S elect the memory channel to be transferred with
  • Icom IC-R75 | Instruction Manual - Page 28
    6 MEMORY OPERATION ■ Memory names All memory channels (including scan edges) can be tagged with alphanumeric names of up to 8 characters each. Letters (capitals except 'o'), numerals and spaces can be used. Numerals can only be used for the 7th and 8th digits. D Turning memory name indication
  • Icom IC-R75 | Instruction Manual - Page 29
    . • Squelch condition ❍ Scan starts with squelch open For programmed scan: When tuning step is 1 kHz or less: The scan continues until it is stopped manually- it does not pause* even if signals are detected. * The scan is paused when the squelch is closed and then opened (scan resumes after 10
  • Icom IC-R75 | Instruction Manual - Page 30
    can also be changed while scanning. e Set [RF/SQL] open or closed. • See previous page for scan condition. • If the [RF/SQL] control function is set as RF control, the squelch always opens. See pgs. 14, 30 for details. r P ush [SCAN] to start the memory/select memory scan. • "SCAN" appears while
  • Icom IC-R75 | Instruction Manual - Page 31
    function is set as RF control, the squelch always opens. See pgs. 14, 30 for details. t Push [SCAN] for 2 sec. to start priority watch. • "SCAN" appears. USB ANT 1 AGC S1 3 5 7 9 20 40 60dB VFO SCAN y W hen a signal is received on a watch channel, the function display shows the watch channel
  • Icom IC-R75 | Instruction Manual - Page 32
    time flashes. r Push [ENT] to set the time. • Push [CLR] to cancel the setting. t Push [CLOCK] to exit clock indication mode. ■ Setting power-on time The receiver can be set to turn ON automatically at a specified time. q Push [CLOCK] to select clock indication mode. w Push [UP Y] to select
  • Icom IC-R75 | Instruction Manual - Page 33
    , respectively. u Push [ENT] to exit clock indication mode. • When the set time arrives, the power is automatically turned OFF with 5 beeps. ■ Setting sleep timer period The receiver can be set to turn OFF automatically. The power-off period can be set from 1 min. to 23 hours 59 min. q Push [CLOCK
  • Icom IC-R75 | Instruction Manual - Page 34
    . r Push [(ANT) SET] to exit the set mode. • RF/squelch control The [RF/SQL] control can be set as the squelch control (default; RF gain is fixed at maximum), the RF gain control only (squelch is fixed as open) or RF/squelch control. See p. 14 for details. • Confirmation beep A beep sounds each time
  • Icom IC-R75 | Instruction Manual - Page 35
    low. See p. 25 for scanning details. • AM mode noise blanker The noise blanker for AM mode can be turned ON and OFF. • 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 CW
  • Icom IC-R75 | Instruction Manual - Page 36
    different address for each IC-R75 in the range 01h to 7Fh. • CI-V baud rate This item sets the data transfer rate. "3" (300 bps), "12" (1200 bps), " controller or remote controller. • CI-V transceive Transceive operation is possible with the IC-R75 connected to other Icom HF transceivers or receivers
  • Icom IC-R75 | Instruction Manual - Page 37
    • Speech speed When the optional UT-102 voice synthesizer unit is installed, you can select between faster or slower synthesizer output. See p. 34 for unit installation. • Speech S-level When the optional UT-102 voice synthesizer unit is installed, you can have signal level, frequency, mode and
  • Icom IC-R75 | Instruction Manual - Page 38
    etc. CAUTION: DISCONNECT the DC power cable from the receiver before performing any work on the receiver. Otherwise, there is danger of electric (MAIN unit), then remove the PLL unit. PLL unit e R emove the supplied internal crystal and replace with the CR-282. r A djust the reference frequency
  • Icom IC-R75 | Instruction Manual - Page 39
    and bottom cover to their original positions. UT-106 P1241 J3 P1241 J1231 J1221 ■ Optional IF filters Several IF filters are available for the IC-R75. You can install 1 filter for both 9 MHz and 455 kHz IF. Choose appropriate filter for your operating needs. 9 MHz optional filters: FL-101 cw
  • Icom IC-R75 | Instruction Manual - Page 40
    ■ Troubleshooting The following chart is designed to help you correct problems which are equipment malfunctions. If you are not able to locate the cause of a problem or solve it through the use of this chart, contact your nearest Icom Dealer or Service Center. POWER RECEIVE PROBLEM POSSIBLE
  • Icom IC-R75 | Instruction Manual - Page 41
    to find the source of the problem, and replace the damaged fuse with a new, rated fuse. CAUTION: DISCONNECT the DC power cable from the receiver when changing a fuse. The IC-R75 has 2 types of fuses installed for receiver protection. • DC power cable fuses  FGB 3 A • Circuitry fuse  FGB
  • Icom IC-R75 | Instruction Manual - Page 42
    fluctuations 0°C to +50°C (+32°F to +122°F) less than ± 5 ppm. • Power supply : 13.8 V DC ±15% requirement (negative ground) • Current drain : Standby 0.9 A (at 13.8 V DC) Max. audio 1.1 A • Antenna connector : SO-239 (50 Ω), push connection terminal (500 Ω) • Dimensions : 241
  • Icom IC-R75 | Instruction Manual - Page 43
    UNIT Contains a temperature-compensating oven heater and crystal unit for improved frequency stability. • Frequency stability: ±0.5 ppm RS-R75 REMOTE CONTROL SOFTWARE Allows you to control the receiver from your PC (for Microsoft® Windows® 95 or Windows® 98). *S-AM (Synchronous AM) mode appears and
  • Icom IC-R75 | Instruction Manual - Page 44
    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 receiver. IC-R75 9-15 V DC Up to 4 Icom CI-V transceivers or receivers can be connected to a PC equipped with an RS-232C port. See p. 32 for
  • Icom IC-R75 | Instruction Manual - Page 45
    09 + level data 01 15 02 02 12 16 22 40 41 18 00 01 19 00 1A 00 + data 01 + data 02 + data Description Attenuator OFF Attenuator ON Select [ANT1] Select [ANT2] Announce with voice synthesizer (00=all data; 01=frequency and S-meter level; 02=receive mode) [AF] level setting (0000
  • Icom IC-R75 | Instruction Manual - Page 46
    CONTROL COMMAND • CI-V data example 1 Reading/sending memory contents: q Memory channel 39 w Select memory ch select ch e Receive frequency 12.345678 MHz r Receive mode FM t IF filter Narrow q wert y y Attenuator OFF u Preamp Preamp 1 i Antenna OFF e Data 00 01 02 03 04 05 06 07 455
  • Icom IC-R75 | Instruction Manual - Page 47
    • Set mode data table Set mode No (q) 01 02 03 04 05 06 07 08 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Set mode item RF/squelch control Confirmation beep Beep level Beep level limit S-meter peak
  • Icom IC-R75 | Instruction Manual - Page 48
    A-5580H-1EX-t Printed in Japan © 1999-2009 Icom Inc. Printed on recycled paper with soy ink. 1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan
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INSTRUCTION MANUAL
COMMUNICATIONS RECEIVER
iR75