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Icom IC-20
Specifications

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Wideband Receivers 

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IC-R20 Specifications

General
  • Frequency Range U.S.A. Version:
    • 0.150-821.999, 851.000-866.999, 896.000-3304.999
  • Mode: FM, WFM AM, USB, LSB, CW
  • Tuning Steps: 0.1, 0.5, 1, 5, 6.25, 8.33, 9, 10, 12.9, 15, 20, 25, 30, 50, 100 kHz
  • Antenna Connector: BNC (50 ohms)
  • Usable Temperature Range: -10C to +60C; +14F to +140F
  • Current Drain Single Watch (at 13.5 V DC):
    • Rated Audio: 180 mA typ.
    • Standby: 110 mA typ.
    • Power Saved: 50 mA typ.
  • Power Supply Requirement: 6 V DC (4 AA (R6) Ni-Cd cells); or, 4.8-16 V DC acceptable (negative ground)
  • Dimensions: 58(W) x 140(H) x 31(D) mm, 2.3(W) x 5.6(H) x 1.2(D) in (projections not included)
  • Weight: 320 g; 11.3 oz.
  • CI-V Connector: 2-conductor 3.5(d) mm (1/8")

 

Receiver
  • Receive System: Triple conversion superheterodyne + downconverter
  • Intermediate Freq.
    • 1st: 266.7 MHz (340.000-999.9999)
    • 429.1 MHz (except above freq.)
    • 2nd: 19.65 MHz
    • 3rd: 450 kHz
  • Sensitivity (typ.): (except spurious points)
    Freq. (MHz) FM WFM AM SSB/CW
    0.5-4.9999 0.5 V - 1.6 V 0.4 V
    5-74.9999 0.32 V - 1.0 V 0.25 V
    75-199.9999 0.32 V 1.0 V 1.0 V 0.25 V
    200-339.9999 0.45 V 2.2 V 1.6 V 0.4 V
    340-699.9999 0.35 V 1.3V 1.4 V 0.32 V
    700-799.9999 0.79 V 2.0 V 2.0 V 0.63 V
    800-899.9999 0.5 V 1.6 V 1.6 V 0.4 V
    900-1300.0000 0.5 V - 1.6 V 0.4 V
    FM and WFM are measured at 12 dB SINAD; AM, SSB and CW are measured at 10 dB S/N.
  • Squelch Sensitivity: (at threshold)
    Freq. (MHz) FM WFM AM
    0.5-4.9999 0.5 V - 1.6 V
    5-74.9999 0.32 V - 1.0 V
    75-199.9999 0.32 V 1.0 V 1.0 V
    200-339.9999 0.45 V 2.2 V 1.6 V
    340-699.9999 0.35 V 1.3 V 1.4 V
    700-799.9999 0.79 V 2.0 V 2.0 V
    800-899.9999 0.5 V 1.6 V 1.6 V
    900-1300.0000 0.5 V - 1.6 V
  • Selectivity
  • SSB, CW: More than 3 kHz/-6 dB
  • AM, FM: More than 12 kHz/-6 dB
  • WFM: More than 150 kHz/-6 dB
  • Audio Output Power: More than 100 mW at 10% distortion with an 8 ohm (at 13.5 V DC) load.
  • Stability: ± 6 ppm (-10C to +60C; +14F to +140F)
  • Scan Rate: 100 channels per second (in VFO mode)
  • External Speaker Connector: 3-conductor 3.5(d) mm (1/8")/8 ohms
  • Specifications are subject to change without notice.

 


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