IC-746

IC-746 Features

  • Spectrum Scope
  • 102 Memories
  • RIT/XIT
  • Noise Blanker
  • VOX Function
  • Selectable APF
  • Dual Display
  • 100 Watt Output
  •   40 Watt Output (AM)
  • Built-in Automatic Antenna Tuner 180-6 Meters
  • Full Break-In CW
  • CW Keyer
  • 100% Duty Cycle
  • Rx Antenna Jack
  • DSP Notch
  • 1 Hz Readout
  • Memory Keyer
  • RF Attenuator 6/12/18 dB
Category:

The Icom IC-746 covers 160-10 meters plus 6 and 2 meters

100 Watts of output is available on all bands - HF, 50 MHz and 144 MHz, making the IC-746 a practical choice for all-around base station use. The die-cast aluminum chassis and a large cooling fan help to stabilize the PA circuit, providing 100% full duty cycle operation. It has 100 alphanumeric memories, spectrum display, Twin PBT, CTCSS encode/decode, APF, two stage preamp, keypad entry, automatic antenna tuner and electronic keyer. DSP digitally transposes receive audio components in all modes of operation to produce desired AF frequency characteristics at the IF stage of the transceiver. This built-in DSP provides:  noise reduction, automatic notch filter and selectable APF. The digital bar graph meter displays ALC, power output and SWR simultaneously! The radio automatically selects from the three separate antenna inputs (HF, 6 meters, 2 meters). A built-in automatic antenna tuner operates on the HF bands plus 6 meters. The rear panel has three antenna jacks. The 746 requires 12 VDC at 20 Amps.

The IC-746 comes with HM-36 hand mic, spare fuses, DC power cable and key plug. 11.3 x 4.8 x 12.5 inches. 20 lbs.

General

Frequency range Tx 156.025–157.425 MHz
Rx 156.050–163.275 MHz
Rx (CH70) 156.525 MHz
RX (AIS) 162.025 MHz
Usable channel groups INT, USA, CAN, WX channels
Type of emission 16K0G3E (FM), 16K0G2B (DSC), 16K0GXW (GMSK)
Current drain
(at 7.2 V DC)
TX (6 W/1 W output) 1500 mA/700 mA (approx.)
RX (Inter SP/Exter SP Max. audio) 700 mA/350 mA (approx.)
Operating temperature range –20°C to +60°C; –4˚F to +140˚F
Antenna impedance 50 Ω
Dimensions (W×H×D)
(Projections not included)
60.9 × 145.8 × 43.8 mm;
2.4 × 5.7 × 1.7 in
Weight (approximately) 357 g ; 12.6 oz
(With BP-306, antenna, MB-133)

 

 

Transmitter

Output power (Hi/Low) 6 W/1 W
Max. frequency deviation ±5 kHz
Frequency stability ±10 ppm
Spurious emissions –68 dBc typical

 

 

Receiver

Sensitivity (at 12 dB SINAD)
DSC receiver (at 1% BER)
AIS receiver (at 20% PER)
0.25 μV typical
–3 dBμ emf typical
–107 dBm
Squelch sensitivity (Threshold) 0.25 μV typical
Adjacent channel selectivity
DSC receiver (at 1% BER)
AIS receiver (at 20% PER)
70 dB typical
73 dBμ emf
50 dB typical
Spurious response
DSC receiver (at 1% BER)
AIS receiver (at 20% PER)
70 dB typical
73 dBμ emf
50 dB typical
Intermodulation
DSC receiver (at 1% BER)
AIS receiver (at 20% PER)
70 dB typical
68 dBμ emf
50 dB typical
Hum and noise 40 dB
Audio output power
(at 10% distortion)
Internal SP 1500 mW typical (8 Ω load)
External SP 350 mW typical (8 Ω load)

 

Measurements made in accordance with TIA/EIA-603. All stated specifications are subject to change without notice or obligation.

 

 

Applicable U.S. Military Specifications & IP Rating

Standard MIL-810 G
Method Procedure
Low Pressure 500.5 I, II
High Temperature 501.5 I, II
Low Temperature 502.5 I, II
Temperature Shock 503.5 I-C
Solar Radiation 505.5 I
Rain Blowing/Drip 506.5 I, III
Humidity 507.5 II
Salt Fog 509.5
Dust Blowing 510.5 I
Immersion 512.5 I
Vibration 514.6 I
Shock 516.6 I, IV

Also meets equivalent MIL-STD-810-C, -D, -E and -F.

Ingress Protection Standards
Water IPX7 (Waterproof protection)

 

All stated specifications are subject to change without notice or obligation.

 

 

Supplied Accessories

  • BP-306 battery pack
  • BC-251 battery charger
  • AC adapter*
  • CP-26 cigarette lighter cable
  • MB-133 belt clip
  • Antenna
  • Hand strap

* May differ depending on version

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