IC-746 HF/50 MHz/144 MHz ALL MODE TRANSCEIVER
ICOM INNOVATION AND TECHNOLOGY LEADERSHIP AGAIN!

LOOKING FOR ONE RIG TO SATISFY ALL YOUR BASE STATION NEEDS? LOOK NO FURTHER! THE IC-746 OFFERS IF DSP, NEW AND EXCITING FEATURES, SUPERIOR PERFORMANCE OVER A WIDE FREQUENCY RANGE AND ALL MODE OPERATION AT 100 W (40 W IN AM MODE).
IC-746

HF + 6 m + 2 m band coverage
The IC-746 offers all mode operation (SSB, CW, RTTY, AM and FM) on the amateur HF (1.8-28 MHz), 50 MHz and 144 MHz bands. In addition, a wide frequency coverage receiver provides continuous coverage from 30 kHz to 60 MHz and 108-174 MHz.*
*Specifications guaranteed 1.8-29.990 MHz, 50-54 MHz and 144-148 MHz only.

100 W output for all bands
100 W of output power is available on all bands-HF, 50 MHz and 144 MHz, making the IC-746 a practical choice for allround base station use. The aluminum, die-cast chassis and large cooling fan help to stabilize the PA circuit, providing 100%, full duty cycle operation.

DSP functions standard
DSP digitally transposes receive audio components in all modes of operation to produce desired AF frequency characteristics at the IF stage (15.625 kHz) of the transceiver. This built-in DSP provides the following functions.
  • Noise reduction-reduces various types of noise and enhances receive signal components only.
  • Automatic notch filter-automatically reduces single beat interference and protects the receive voice signals. The notch frequency adjusts automatically to the interfering beat frequency.
  • Selectable APF-a total of 3 passband widths are selectable from 80 Hz, 160 Hz and 320 Hz, for super-narrow filter APF functions in CW mode. The APF center frequency is adjustable.
Large, multi-function LCD
Designed for ease-of-use and optimum readability in any lighting condition. Operating frequency, memory channel number, function settings and digital meter readouts are indicated. In addition, the following items can be displayed in the multi-function, dot-matrix portion of the LCD:
  • Band scope-provides a convenient visual indication of band conditions around a displayed frequency
  • Memory names-up to 9 characters can be conveniently assigned to memories
  • Key assignments-indicates functions assigned to the multi-function switches
  • Twin PBT settings-display passband widths and passband location against the Rx frequency
  • Split frequency-Rx or Tx frequency* is displayed during split operation
    * Depending on condition (transmit or receive).
  • Memory keyer contents-displays the contents of the CW memory keyer
Twin PBT
This convenient function narrows the IF passband in two stages to eliminate interfering signals. Particularly useful during crowded band conditions such as pileups, contests, etc. Versatile filter combinations
Up to 3* optional crystal filters can be installed, providing a wide variety of filter combinations. Choose a filter combination from the front panel that best suits your operating needs, for example 500 Hz and 250 Hz CW filters.
* 2 filters for 9 MHz IF and 1 for 455 kHz IF stages.

Digital, multi-function S/RF meter
This meter provides a variety of useful information. Signal strength is indicated while receiving (S-meter) and RF output, SWR and ALC levels are simultaneously indicated while transmitting. A peak level hold function is available for the S-meter.

Complete CW functions
CW enthusiasts won't be disappointed. With a built-in 4 channel memory keyer with 50 characters, multi-function electronic keyer, CW pitch control and full break-in (QSK), the IC-746 has it all.

Tone squelch standard
Tone squelch functions (CTCSS encoder/decoder) are standard with 50 different tone frequencies available.

Automatic antenna tuner
An automatic antenna tuner is built-in and covers the HF bands to 50 MHz.* After operating on a band for the first time memories can be preset providing very high speed tuning.
* Guaranteed for amateur bands only.

FM narrow capability
The IC-746 lets you take full advantage of this operating style on either the 10 m or 2 m (where narrow FM is required) bands.

Quick split function
With this function, the offset frequency can be set in advance. Simply push [SPLIT] for 1 sec. to select all necessary settings for split frequency operation.

Other outstanding features
  • Triple band stacking register
  • Memo-pad function has up to 10 channels available to temporarily store operating frequencies and modes
  • Optional UT-102 VOICE SYNTHESIZER UNIT announces the displayed frequency, operating mode and S-meter level
  • IF transmit audio monitor (SSB mode only; AF transmit audio monitor for the other modes)
Display exsample 1-Band scope
 Display exsample 3-Dual frequency display
Display exsample 2-Memory names
 Display exsample 4-Memory keyer contents

SPECIFICATIONS
 GENERAL
Frequency coverage (MHz) : Receive
    0.030-60.000*1 108.000-74.000*1
  Transmit
    1.800-1.999*2    3.500-3.999*2
    7.000-7.300*2    10.100-10.150
    14.000-14.350    18.068-18.168
    21.000-21.450    24.890-24.990
    28.000-29.700    50.000-54.000*2
    144.000-48.000*2
  *1 except for some frequency ranges
  *2 depending on version
Mode : USB, LSB, CW, RTTY, AM, FM
No. of memory channels : 102 (99 regular, 2 scan edges and 1 call)
Frequency stability : Less than ±7 ppm from 1 min. to 60 min. after power ON.
  After that, rate of stability change is less than ±1 ppm at 25°C (+77°F).
  Temperature fluctuations (0°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) : Transmit
    max. power 20.0 A
  Receive
    max. audio 2.0 A
    standby 1.8 A
Antenna connector : SO-239×3 (2 for HF/50 MHz and 1 for 144 MHz bands; 50)
Dimensions
(projections not included)		 : 287(W)×122.5(H)×316(D) mm
  115.16(W)×413.16(H)×127.16(D) in
Weight (approx.) : 8.9 kg; 19 lb 10 oz
 TRANSMITTER
Output power : 5.100 W (except AM)
  5.40 W (AM only)
Modulation system : USB, LSB, AM Balanced modulation
  FM Variable reactance modulation
Spurious emissions : Less than .50 dB (HF)
  Less than .60 dB (50/144)
Carrier suppression : More than 40 dB
Unwanted sideband supp : More than 50 dB
TX variable range : ±9.999 kHz
Microphone connector : 8-pin (600)
 RECEIVER
Sensitivity (typical) : USB, LSB, CW, RTTY (10 dB S/N)
    0.16 µV*1 (1.8-29.990 MHz)
    0.13 µV*2 (50 MHz)
    0.11 µV*3 (144 MHz)
  AM (10 dB S/N)
    13 µV (0.5-1.799 MHz)
    2.0 µV*1 (1.8-29.990 MHz)
    1.0 µV*2,3 (50/144 MHz)
  FM (12 dB SINAD)
    0.5 µV*1 (28-29.990 MHz)
    0.25 µV*2 (50 MHz)
    0.18 µV*3 (144 MHz)
  *1 Preamp-1 ON,    *2 Preamp-2 ON,    *3 Preamp ON
Selectivity : USB, LSB, CW, RTTY
    More than 2.1 kHz/-6 dB
    Less than 4.0 kHz/-60 dB
  AM, FM-N
    More than 9.0 kHz/-6 dB
    Less than 20.0 kHz/-40 dB
  FM
    More than 12 kHz/-6 dB
    Less than 30 kHz/-50 dB
Squelch sensitivity : USB, LSB, CW, RTTY Less than 5.6 µV
  FM Less than 1.0 µV
Spurious and image rejection ratio
(except IF through on 50 MHz)		 : More than 70 dB (HF, 50 MHz)
  More than 60 dB (144 MHz)
RIT variable range : ±9.999 kHz
Audio output power :More than 2.0 W (at 13.8 V DC with an 8 load)

Supplied accessories
  • Hand microphone
  • DC power cable
  • Spare fuses
  • Key plug
All stated specifications are subject to change without notice or obligation.
OPTIONS
  • IC-PW1 HF + 50 MHz 1 kW LINEAR AMPLIFIER
  • AH-4 HF + 50 MHz AUTOMATIC ANTENNA TUNER
    Covers 3.5.54 MHz with a 7 m (23 ft) or longer wire antenna.
  • AH-2b ANTENNA ELEMENT
    A 2.5 m long antenna element for mobile operation with the AH-4. All bands between 7.54 MHz can be matched.
  • PS-85 POWER SUPPLY
    Output: 13.8 V DC (20 A max.)
  • SP-21 EXTERNAL SPEAKER
    Designed for base station operation.
    Input impedance: 8
    Max. input power: 5 W
  • SM-20 DESKTOP MICROPHONE
    Unidirectional, electret microphone for base station operation. Includes [UP]/[DOWN] switches and a low cut function.
  • SM-8 DESKTOP MICROPHONE
    Electret, condenser-type desktop microphone including 2 connection cables for simultaneous connection of 2 transceivers. [UP]/[DOWN] switches are included.
  • CT-17 CI-V LEVEL CONVERTER
    For remote transceiver control using a personal computer. You can change frequencies, operating mode, memory channels, etc.
  • CT-16 SATELLITE INTERFACE UNIT
    Easy tuning when connecting another Icom VHF transceiver for instant satellite communications.
  • CR-282 HIGH-STABILITY CRYSTAL UNIT
    Contains a temperature-compensating oven heater and crystal unit for improved frequency stability.
    • Frequency stability: ±0.5 ppm
  • UT-102 VOICE SYNTHESIZER UNIT
    Announces operating frequency, mode and S-meter level.
  • HM-36 HAND MICROPHONE
    Same as supplied.
  • 9 MHz FILTERS
    Have good shape factor and provide you with better reception.
  • FL-100 500 Hz/-6 dB (CW/RTTY narrow)
  • FL-101 250 Hz/-6 dB (CW narrow)
  • FL-103 2.8 kHz/-6 dB (SSB wide)
  • FL-223 1.9 kHz/-6 dB (SSB narrow.)
  • FL-232 350 Hz/-6 dB (RTTY, CW narrow)
  • 455 kHz FILTERS Have good shape factor and provide you with better reception.
  • FL-52A500 Hz/-6 dB (CW/RTTY narrow)
  • FL-53A 250 Hz/-6 dB (CW narrow)
  • FL-96 2.8 kHz/-6 dB (SSB wide)
  • FL-222 1.8 kHz/-6 dB (SSB narrow)
  • FL-257 3.3 kHz/-6 dB (SSB wide)
  • RS-746 REMOTE CONTROL SOFTWARE
    Provides remote control capability for the IC-746 from your PC.