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ICOM IC-R75

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Desktop HF/VHF Receiver

The ICOM IC-R75-12 receiver continues the proud tradition of the earlier ICOM IC-R70 and ICOM IC-R71A models. With full coverage from 30 kHz to 60 MHz; all longwave, medium wave and shortwave frequencies are supported plus extended coverage to include the 6 meter amateur band. Some of innovative features of the R75 include: FM Mode Detection (but not the FM broadcast band), Twin Passband Tuning, Two Level Preamp, 99 Alphanumeric Memories, four Scan Modes, Noise Blanker, Selectable AGC (FAST/SLOW/OFF), Clock-Timer, Squelch, Attenuator and backlit LCD display. Tuning may be selected at 1 Hz or 10 Hz steps plus there is a 1 MHz quick tuning step plus tuning Lock. The R75 exhibits very impressive and very linear sensitivity throughout shortwave. Superior dynamic range insures the handling of both weak and strong signals. The front-firing speaker provides solid, clear audio. The back panel includes a Record Output jack and Tape Recorder Activation jack (both 3.5mm mini). There are both Hi-Z and Lo-Z antenna inputs.

The R75 is an excellent single sideband receiver (SSB). The supplied 2.1 kHz SSB filter is suitable for utility, amateur, or broadcast SSB. However, two optional CW/SSB filter positions are also available (one per I.F.). Click here to view filter chart. The built in 24 hour clock timer is very versatile. You can program the radio to come on and power off at specific times. There is also a sleep function that will turn the radio off after a set period that can be set from 1 minute to 23 hours and 59 minutes. The R75 is not CE certified. Optional filters do not require soldering. The UT-106 DSP Unit is currently installed by Icom and included in the radio.

The earlier model Icom IC-R75-02 included Synchronous AM Detection. This version was discontinued by Icom due to parts availability issues.

Specifications
Type
Desktop Amateur HF/VHF Receiver 
Frequency range RX
0.03-60 MHz (0.03-30 / 50-54 MHz guaranteed) 
TX
Frequency stability
Less than ±7 ppm from 1 min. to 60 min. after power on. After that rate of stability less than ±1 ppm/hr. at +25°C (+77°F). Temperature fluctuations 0°C to +50°C (+32°F to +122°F) less than ±5 ppm. 
Tuning steps
0.001 / 0.01 / 1000 kHz 
Filters
2.4 / 6 / 15 kHz
Optional 500 / 250 Hz 
Receiver
Modulations
AM / AM-sync / FM / CW / USB / LSB / RTTY 
Sensitivity
SSB/CW/RTTY
0.1–1.8 MHz 2.0 μV
1.8–28 MHz 0.16 μV
28–29.99 MHz 0.16 μV
50–54 MHz 0.13 μV
AM/S-AM
0.1–1.8 MHz 5.6 μV
1.8–28 MHz 1.6 μV
28–29.99 MHz 1.6 μV
50–54 MHz 1.0 μV
FM
28–29.99 MHz 0.22 μV
50–54 MHz 0.2 μV 
Selectivity
SSB/CW/RTTY
More than 2.1 kHz/–6 dB
Less than 4.0 kHz/–60 dB
AM/S-AM
More than 6 kHz/–6 dB
Less than 20 kHz/–50 dB
FM
More than 12 kHz/–6 dB
Less than 30 kHz/–40 dB 
Receiver system
Triple conversion superheterodyne 
IF-frequencies
1st: ~69 MHz
2nd: ~9 MHz
3rd: ~455 / 450 kHz 
Image rejection
> 70 dB 
Audio output
2 W, 10% distortion @ 8 Ω 
Transmitter
Modulations
RF-output
Connections
Antenna
SO-239 + Klemmen / schroeven 
Impedance
50 / 500Ω 
Electrical
Power requirements
13.8V DC ±15% 
Current drain RX
0.9-1.1 A 
TX
Physical
Dimensions (w×h×d)
241 × 94 × 229 mm (9.49 × 3.70 × 9.02 in)  
Weight
3 kg (6.6 lbs)  
Form factor
Desktop 
Manufactured
Between 1999 and 200x in Japan (Icom restarted production after protests from the market) 
Other features
Memories
99 channels in 1 banks  
Usage
Amateur / Ham radio operators 
Manufacturer
ICOM 
Model
IC-R75
Features
CI-V interface
PC programmable (RS-232) 
Manuals, Diagrams and Brochures
 
None available  
 
 
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