IC-820H - VHF/UHF Dual Band Satellite Transceiver

Quick Specs:
VHF/UHF dual band satellite base transceiver
RX: 136-174 MHz, 430-450 MHz
TX: 144-148 MHz, 430-450 MHz
Output power:
VHF: 45 W FM, CW; 35 W SSB
UHF: 40 W FM, CW; 30 W SSB
Modes: CW, SSB, FM
Receiver sensitivity:
less than 0.11 µV (SSB, CW for 10 dB S/N), less than 0.18 µV (FM for 12 dB SINAD)

GENERAL

• Frequency Coverage:

  VHF: 144.00-148.00* MHz (*Receive: 136.00-174.00 MHz; guaranteed: 144.00-148.00 MHz)

  UHF: 430.00-450.00 MHz

• Mode: SSB, CW, FM
• Number of memory channels: 116 (50 regular, 1 call and 2 scan edges for each band; and 10 satellite)
• Usable Temperature Range: -10°C to +60°C; +14°F to +140°F
• Frequency stability: ±3 ppm (-10°C to +60°C)
• Power Supply Requirement: 13.8 V DC ±15%
• Current Drain (at 13.8 V DC):

  Transmit (high): 16.0 A

  Receive: standby =2.0 A; max. audio =2.5 A

• Dimensions: 241(W) x 94(H) x 239(D) mm, 9.5(W) x 3.7(H) x 9.4(D) in (projections not included)
• Weight: 5.0 kg; 11.0 lb.

Transmitter

• Output power:

  VHF:

  FM, CW: 45 W (high); 6 W (low)

  SSB: 35 W (high); 6 W (low)

  UHF:

  FM, CW: 40 W (high); 6 W (low)

  SSB: 30 W (high); 6 W (low)

• Spurious emissions: Less than -60 dB
• Carrier suppression: More than 40 dB
• Unwanted sideband: More than 40 dB
• Microphone impedance: 600 ohms

Receiver

• Receive system:

  VHF:

  SSB/CW: Single conversion superheterodyne

  FM: Double conversion superheterodyne

  UHF:

  SSB/CW: Double conversion superheterodyne

  FM: Triple conversion superheterodyne

• Intermediate frequencies:

  MAIN band:

  VHF:

  SSB: 1st (10.8500 MHz)

  CW: 1st (10.8491 MHz)

  FM: 1st (10.8500 MHz); 2nd (455 kHz)

  UHF:

  SSB: 1st (71.2500 MHz); 2nd (10.8500 MHz)

  CW: 1st (71.2491 MHz); 2nd (10.8491 MHz)

  FM: 1st (71.2500 MHz); 2nd (10.8500 MHz); 3rd (455 kHz)
  

  SUB band:

  VHF:

  SSB: 1st (10.9500 MHz)

  CW: 1st (10.9491 MHz)

  FM: 1st (10.9500 MHz); 2nd (455 kHz)

  UHF:

  SSB: 1st (71.3500 MHz); 2nd (10.9500 MHz)

  CW: 1st (71.3491 MHz); 2nd (10.9491 MHz)

  FM: 1st (71.3500 MHz); 2nd (10.9500 MHz); 3rd (455 kHz)

• Sensitivity:

  SSB, CW (10 dB S/N): Less than 0.11 µV

  FM (12 dB SINAD): Less than 0.18 µV

• Squelch sensitivity (at threshold):

  SSB, CW: Less than 1.0 µV

  FM: Less than 0.10 µV

• Selectivity:

  SSB, CW: More than 2.3 kHz/-6 dB ; Less than 4.2 kHz/-60 dB

  CW-N (optional): More than 0.5 kHz/-6 dB ; Less than 1.34 kHz/-60 dB

  FM: More than 15.0 kHz/-6 dB ; Less than 30.0 kHz/-60 dB

• Spurious and image rejection ratio: More than 60 dB
• Audio output impedance: 8 ohms
• Audio output power: More than 2.0 W at 10% distortion with an 8 ohm load
• RIT variable range:

  SSB, CW: ±2 kHz (maximum)

  FM: ±10 kHz (maximum)

IC-820H Options

Preamplifiers

• AG-25/AG-35 WATERPROOF PREAMPLIFIERS: External all-weather, mast-mounting preamplifiers for compensating for coaxial cable loss. AG-23 for VHF; AG-35 for UHF.

DC Power Supplies

• IC-PS30 DC POWER SUPPLY: A system power supply. Equipped with 1 DC power cable and 3 output connectors. (13.8 V DC/25A)
• PS-85 DC POWER SUPPLY: Style and size are matched to the IC-820H. (13.8 V DC/20 A)

Internal Units and Filters

• CR-293 HIGH-STABILITY CRYSTAL UNIT: Frequency stability: ±0.5 ppm (-10°C to +60°C)
• FL-132 CW NARROW FILTER: Center frequency: 10.8491 MHz; Passband width: 500 Hz/-6 dB
• UI-36 VOICE SYNTHESIZER UNIT: Provides audible confirmation of an accessed band's frequency, mode, etc. with a clear, electronically-generated voice.
• UT-50 TONE SQUELCH UNIT: Provides tone squelch and tone scan functions. One unit can be used for both bands alternately. Two units are needed for operation on both bands simultaneously.

Microphones

• HM-12 HAND MICROPHONE
• SM-6 DESKTOP MICROPHONE
• SM-8 DESKTOP MICROPHONE
• SM-20 DESKTOP MICROPHONE

External Speakers

• IC-SP3 EXTERNAL SPEAKER (8 ohms/4 W)
• SP-7 EXTERNAL SPEAKER (8 ohms/5 W)
• SP-20 EXTERNAL SPEAKER (8 ohms/5 W)
• SP-21 EXTERNAL SPEAKER (8 ohms/5 W)

Others

• CT-17 CI-V LEVEL CONVERTER: For remote transceiver control using a personal computer.
• IC-MB5 MOBILE MOUNTING BRACKET
• MB-23 CARRYING HANDLE