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Icom R8500
Specifications

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Wideband Receivers  

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R8500 Specifications

General
  • R8500-02 Frequency Coverage:
    • 0.10000 - 823.99999 MHz
    • 849.00001 - 868.99999 MHz
    • 894.00001 - 1999.99999* MHz (*guaranteed: 0.1 - 1000 and 1240 - 1300 MHz)
  • R8500-04 Frequency Coverage:
    • 0.10000 - 1999.99999* MHz (*guaranteed: 0.1 - 1000 and 1240 - 1300 MHz)
  • Mode: SSB (USB,LSB); AM (Normal, Wide, Narrow); WFM; FM (Normal, Narrow); CW (Normal, Narrow*) (*optional filter required)
  • Number of memory channels: 1000 (plus 20 scan edges and 1 priority channel)
  • Antenna connector:
    • Below 30 MHz: SO-239 (50 ohms/Phono [RCA (500 ohms)])
    • Above 30 MHz: Type-N (50 ohms)
  • Usable Temperature Range: -10C ~ +50C; +14F ~ +122F
  • Frequency stability (in FM mode):
    • Below 30 MHz: 100 Hz (optional 20 Hz)
    • Above 30 MHz: 3 ppm (optional 0.6 ppm)
  • Tuning steps: 10, 50, 100 Hz; 1, 2.5, 5, 9, 10, 12.5, 20, 25, 100 kHz; 1 MHz or programmable (0.5 - 199.5 kHz/0.5 kHz steps)
  • Scanning Rate: 40 Channels per second
  • Power Supply Requirement: 13.8 V DC 15% (negative ground) or 117/220/240 VAC (with AD-55/A/V)
  • Current drain (at 13.8 V DC):
    • Standby: 1.8 A
    • Maximum audio output: 2.0 A
  • Dimensions: 287(W) x 112(H) x 309(D) mm; 11.3(W) x 4.4(H) x 12.2(D) in
  • Weight: 7.0 kg; 15.4 lb.
  • Receive system: Superheterodyne
  • Dynamic Range: 107 dB
  • AGC: Settable to Slow or Fast [not for FM or WFM modes]
  • Intermediate frequencies:
    • 1st: 48.8 MHz (0.1-29.99999 MHz); 778.7 MHz (30.0-499.99999 MHz); 266.7 MHz (500.0-1024.99999 MHz)
    • 2nd: 10.7 MHz (0.1-29.99999 MHz); 10.7 MHz (30.0-499.99999 MHz); 10.7 MHz (500.0-1024.99999 MHz)
    • 3rd*: 455 kHz (0.1-29.99999 MHz); 455 kHz (30.0-499.99999 MHz); 455 kHz (500.0-1024.99999 MHz) (*except WFM)
  • Sensitivity (typical):
    Frequency band (MHz) SSB/CW AM AM-N AM-W FM WFM
    0.1-0.49999 1.0 V 6.3 V - - - -
    0.5-1.79999 2.0 V 13.0 V - - - -
    1.8-1.99999 0.25 V 3.2 V 2.5 V - - -
    2.0-27.99999 0.2 V 2.5 V 2.0 V - - -
    28.0-29.99999 0.2 V 2.5 V 2.0 V - 0.5 V -
    30.0-999.99999 0.32 V 2.5 V 2.0 V 3.2 V 0.5 V 1.4 V
    1240.0-1300.00000 0.32 V 2.5 V 2.0 V 3.2 V 0.5 V 2.0 V
  • Squelch sensitivity (threshold/tight):
    • 1.8-29.99999 MHz:
      • SSB, CW, AM-N: 10 V/320 mV
      • AM, AM-W: 0.5 V/320 mV
    • 28-29.99999 MHz:
      • FM: 0.5 V/320 mV
    • 30-1000, 1240-1300 MHz:
      • FM, AM, AM-W: 0.4 V/320 mV
      • WFM, SSB, CW, AM-N: 4.5 V/320 mV
  • Selectivity:
    • WFM: More than 150 kHz/-6 dB
    • FM, AM-W: More than 12 kHz/-6 dB
    • AM, FM-N: More than 5.5 kHz/-6 dB
    • AM-N, SSB, CW: More than 2.2 kHz/-6 dB
  • Spurious and image rejection ratio:
    • 1.8-29.99999 MHz: More than 60 dB
    • 30-1000/1240-1300 MHz: 50 dB (typical)
  • Audio Output Power (at 13.8 V DC): More than 2.0 W at 10% distortion with an 8 ohms load.
  • IF shift variable range: More than 1.2 kHz
  • External speaker connector: 2-conductor 3.5 mm (1/8 in)/4-8 ohms
  • Sleep Timer Settings: OFF, 120, 90, 60 or 30 minutes.
  • Specifications are subject to change without notice.

 


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