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Icom R75

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 :...

Product Details

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 capabilities

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

 

Noise reduction

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.

 

Alphanumeric readout

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.


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


ModeUSB, LSB, CW, RTTY, AM, FM
Number of memory channels101 (99 regular, 2 scan edges)
Frequency stabilityLess 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 requirement13.8 V DC ±15% (negative ground)
Current drain (at 13.8 V DC)

Standby 0.9 A

Max. audio 1.1 A

Antenna connectorSO-239 (50 Ω), push connection terminal (500 Ω)
Dimensions241(W) × 94(H) × 229(D) mm
Weight (approx.)3.0 kg; 6 lb 10 oz
REMOTE connectorRS-232C D-sub 9-pin
CI-V connector2-conductor 3.5 (d) mm (1⁄8˝)


RECEIVER

• Receive system : Triple-conversion superheterodyne system

• Intermediate frequencies :

Mode

1st(MHz)

2nd(MHz)

3rd(kHz)

USB*/LSB*

69.0115

9.0115

455

CW*

69.0106

9.0106

455.9

RTTY*

69.0105

9.0105

456

AM*

69.0100

9.0100

450

FM

69.0115

9.0115

450

• Sensitivity :

 

Frequency

SSB/CW/RTTY

AM

FM

range

10dB S/N

10dB S/N

12dBSINAD

0.1–1.8MHz*1

2.0µV

5.6µV

1.8–28MHz*2

0.16µV

1.6µV

28–29.99MHz*2

0.16µV

1.6µV

0.22µV

50–54MHz*3

0.13µV

1.0µV

0.2µV


*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

*1

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


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