IC-R75 SPECIFICATIONS GENERAL Frequency coverage : 0.03–60.000000 MHz* *0.03–29.999999 MHz only for Asia version; specifications guaranteed 0.1–29.99 MHz and 50–54 MHz only • Mode : USB, LSB, CW, RTTY, AM, FM • Number of memory channels : 101 (99 regular, 2 scan edges) • Frequency stability :...
Expanded frequency coverage
The IC-R75 covers a frequency range that’s wider than other HF receivers; 0.03–60.000000 MHz*. This wide frequency coverage allows you to listen to a variety of communications including marine communications, amateur radio, short wave radio broadcasts and more.
*Guaranteed 0.1–29.99 MHz and 50–54 MHz only
High stability receiver circuit
Icom’s latest wide band technology provides highly stable receive sensitivity over the entire receive frequency range. The IC-R75 makes it easy to catch communications world wide.
Superior dynamic range
A wide dynamic range of more than 100 dB*1, 104.5 dB*2 for 14 MHz band, 102.5 dB*2 for 50 MHz band, and a well-designed triple conversion system help minimize image and spurious responses for better signal fidelity.
*1 Not guaranteed.
*2 Not guaranteed; When PREAMP OFF; CW narrow 500 Hz bandwidth; 100 kHz channel spacing
Twin PBT capability
The PBT (passband tuning) function narrows and moves the IF passband at two stages to efficiently eliminate interfering signals.
DSP (Digital Signal Processor) filtering in the AF stage is available with the optional UT- 106 DSP UNIT*. The DSP provides the following functions:
* Already installed with some versions
Pulls desired AF signals from noise. Outstanding S/N ratio is achieved, providing clean audio in SSB, AM and FM. Pull weak signals right out of the noise.
Automatic Notch filter
This automatically minimizes beat signals and protects the receive signal. Also, the notch frequency is automatically adjusted to follow interfering beat signals—reducing interference from RTTY signals during SSB operation for example.
FM mode standard
Unlike many other HF/50 MHz receivers there is no need to install an additional unit for FM mode reception on the 29 and 50 MHz bands.
Flexible filter selection
Up to two optional filters* can be installed, providing flexible band width selection and filter combinations.
*One each for 9 MHz and 455 kHz IF stage.
The function display has an alphanumeric readout that indicates up to 8-character memory names for easy recognition.
Selectable RF gain/squelch control
The RF gain and/or squelch control can be set to the [SQL] control in set mode to match your operating preference.
0.03–29.999999 MHz only for Asia version; specifications guaranteed 0.1–29.99 MHz and 50–54 MHz only
|Mode||USB, LSB, CW, RTTY, AM, FM|
|Number of memory channels||101 (99 regular, 2 scan edges)|
|Frequency stability||Less than ±7 ppm from 1 min. to 60 min. afterpower on. After that rate of stability less than ±1ppm/hr. at +25°C (+77°F). Temperature fluctuations0°C to +50°C (+32°F to +122°F) less than ±5 ppm.|
|Power supply requirement||13.8 V DC ±15% (negative ground)|
|Current drain (at 13.8 V DC)|
Standby 0.9 A
Max. audio 1.1 A
|Antenna connector||SO-239 (50 Ω), push connection terminal (500 Ω)|
|Dimensions||241(W) × 94(H) × 229(D) mm|
|Weight (approx.)||3.0 kg; 6 lb 10 oz|
|REMOTE connector||RS-232C D-sub 9-pin|
|CI-V connector||2-conductor 3.5 (d) mm (1⁄8˝)|
• Receive system : Triple-conversion superheterodyne system
• Intermediate frequencies :
• Sensitivity :
*1Preamp: OFF; *2
Preamp 1: ON; *3
Preamp 2: ON
• SQL sensitivity (threshold) : SSB, CW, RTTY Less than 5.6 µV *1
FM Less than 0.32 µV *2
Preamp 1: ON; *2
preamp 2: ON
• Selectivity : SSB, CW, RTTY More than 2.1 kHz/–6 dB
Less than 4.0 kHz/–60 dB
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
• Spurious and image rejection ratio:
More than 70 dB (except IF through/50 M• Audio output power : More than 2.0 W at 10% distortion with an (at 13.8 V DC)
• PHONES connector : 3-conductor 6.35 (d) mm (1⁄4˝)
• External SP connector : 2-conductor 3.5 (d) mm (1⁄8˝)/8 Ω