ICOM IC-78
Specifications

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HF Base Transceivers  

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IC-78 Specifications

General
  • Frequency Range:
    • RX 0.030-29.999999 MHz (guaranteed range: 0.5-29.999999 MHz)
    • TX 1.600-29.999999 MHz
  • Mode: USB, LSB, CW, RTTY, AM
  • No. of memory channels: 100 (99 regular duplex, 1 call)
  • Frequency resolution: 1 Hz
  • Frequency stability: Less than 200 Hz from 1 minute to 60 minutes after power on.
  • After that rate of stability less than 30 Hz/hr. at +25 (+77F).
  • Temperature fluctuations 0C to +50C (+32F to +122F) less than 350 Hz.
  • Power supply requirement: 13.8 V DC 15% (negative ground)
  • Current drain (at 13.8 V DC):
    • Receive: stand-by 1.3 A ; max audio 2.0 A
    • Transmit: max. power 20.0 A
  • Usable temperature range: -10C to +60C (+14F to+140F)
  • Antenna connector: SO-239 (50 ohm)
  • Dimensions: 240mm (W) x 95mm (H) x 239mm (D)
  • (projections not included) 9 7/16in (W) x 3 3/4in (H) x 9 13/32in (D)
  • Weight: 3.8 kg; 8 lb 6 oz
  • ACC connector: 13-pin

 

Transmitter
  • Modulation system:
    • SSB: Balanced modulation
    • AM: Low level modulation
  • Output power:
    • SSB, CW, RTTY: 2-100W
    • AM: 2-40W
  • Spurious emissions: Less than -46 dB below peak output power
  • Carrier suppression: More than 40 dB
  • Unwanted sideband: More than 50 dB
  • Microphone connector: 8-pin connector (600 ohm)
  • KEY connector: 3 conductor 6.5 (d) mm (1/4")

 

Receiver
  • Receiver system: Double-conversion superheterodyne
  • Sensitivity: (10 dB S/N)
    • SSB, CW, RTTY: 0.16 V (1.6-29.999999 MHz)
    • AM: 13 V (0.5-1.599999 MHz)
    • AM: 2 V (1.6-29.999999 MHz)
  • Selectivity:
    • SSB, CW, RTTY: More than 2.1 kHz/-6 dB
    • Less than 4.5 kHz/-60 dB
    • AM: More than 6.0 kHz/-6 dB
    • Less than 20 kHz/-40 dB
  • Spurious and image rejection ratio: More than 70 dB (1.6-29.999999 MHz)
  • Audio output power: More than 2.0 W at 10% distortion with at 8 ohm load (at 13.8 V DC)
  • RIT variable range: 1200 Hz
  • PHONES connector: 3-conductor 6.5 (d) mm (1/4")
  • EXT SP connector: 2-conductor 3.5 (d) mm (1/8") 8 ohms
  • Specifications are subject to change without notice or obligation.

 


Copyright 2009, Universal Radio, Inc.