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IC-746
Specifications |
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| This information is taken directly
off of the ICOM IC-746 brochure. |
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| IC-746 |
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General |
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- Frequency Coverage:
- Receive: 0.030 - 60.000 MHz, 144-148*1*2
- Transmit:
- 1.800 - 1.999 MHz*2
- 3.500 - 3.999 MHz*2
- 7.000 - 7.300 MHz*2
- 10.100 - 10.150 MHz
- 14.000 - 14.350 MHz
- 18.068 - 18.168 MHz
- 21.000 - 21.450 MHz
- 24.890 - 24.990 MHz
- 28.000 - 29.700 MHz
- 50.000 - 54.000 MHz*2
- 144.000 - 148.000 MHz*2
- *1 Except for some frequency ranges
- *2 Depending on version
- Mode: USB, LSB, CW, RTTY, AM, FM
- Number of Memory Channels: 102 (99 regular, 2 scan
edges and 1 call)
- Antenna Connector: SO-239x3 [2 for HF + 1 for 144
MHz bands; 50]
- Usable Temperature Range: -10°C to +60°C; +14°F
to +140°F
- Frequency Stability: Less than ±7 ppm from 1 min.
to 60 min. after power ON. After that, the 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: 20A
- Receive standby: 2.5A
- max. audio: 2.7A
- Dimensions (approx): 287(W) x 120(H) x 316.5(D)
mm, 11.3(W) x 4.75(H) x 12.5(D) in (projections not included)
- Weight (approx): 8.9 kg; 19.625 lb.
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Transmitter |
- Output Power:
- SSB/CW/RTTY/FM: 5-100 W
- AM: 2-40 W
- Modulation System:
- SSB, AM: Balanced modulation
- FM: Variable reactance modulation
- Spurious Emissions: -50 dB (HF), -60 dB(50/144MHz)
- Carrier Suppression: More than 40 dB
- Unwanted Sideband Suppression: More than 50 dB
- Delta TX Variable Range: ±9.999 kHz
- Microphone Connector: 8-pin connector (600 ohms)
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Receiver |
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- Sensitivity:
- SSB, CW, RTTY (10 dB S/N):
- 0.16 µV (1.8-29.99 MHz)*1
- 0.13 µV (50MHz)*2
- 0.11 µV (144 MHz)*3
- AM (10 dB SINAD):
- 13 µV (0.5-1.799 MHz)
- 2.0 µV (1.80-29.99 MHz)*1
- 1.0 µV (50/144 MHz)*2,3
- FM (12 dB SINAD):
- 0.5 µV (28.0-29.99 MHz)
- 0.25 µV (50 MHz)*2
- 0.18 µV (144 MHz)*3
- *1 Pre-amp 1 ON, *2Pre-amp 2 ON, *3Pre-amp
ON
- Squelch Sensitivity:
- USB, LSB, CW, RTTY - Less than 5.6 µV
- FM - Less than 1.0 µV
- 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 kHz/-40 dB
- FM - More than 12 kHz/-6 dB ; Less than 30
kHz/-50 dB
- Spurious and Image Rejection Ratio: More than 70
dB (except IF through in 50 MHz band)
- RIT Variable Range: ±9.999 kHz
- Audio Output Power (at 13.8 V DC): More than 2.0
W at 10% distortion with an 8 ohm load
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