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AN/GRC-9 HF AM/CW/MCW Transmitter-Receiver

AN/GRC-9

TECHNICAL CHARACTERISTICS

Source: TM 11-263/TO 31R2-2GRC9-1/June 1956

• Frequency Range:
  • Band 1 --- 6.6 to 12.0 mhz
  • Band 2 --- 3.6 to 6.6 mhz
  • Band 3 --- 2.0 to 3.6 mhz
• Transmitter Type: Crystal or Master-Oscillator power amplifier.
• Crystal Channels: Two per band
• Types of Signals Transmitted
  • CW, MCW, and Phone (AM)
• Distance range
  • CW (Continious Wave- Keying carrier)
    1. Ground Operation: 30 miles
    2. Vehicular Operation: 20 miles
  • MCW (AM modulated CW- Keying tone)
    1. Ground Operation: 20 miles
    2. Vehiclular Operation: 10 miles
  • Voice (AM modulated- Microphone)
    1. Ground Operation: 10 miles
    2. Vehicular Operation: 10 miles
  • Antennas
    • Ground Operation: Whip or Long-Wire
    • Vehicular Operation: Whip
  • Type of Modulation: Amplitude
  • Number of Tubes: 5
  • Weight: 29 lbs
  • Power Output- PE-237/DY-88/DY-105/PP-327 Power Supplies {GN-58 PS}
    • In "HI" position
      • Phone/MCW: 7 Watts {3.6 Watts}
      • CW: 15 Watts {10 Watts}
    • In "LO" position
      • Phone/MCW: 1 Watt {1.2 Watts}
      • CW: 5 Watts {5 Watts}
    • Power Requirements: Early/Late Model
      • Transmitter Plate Voltage- 475 @ 90ma/580 @ 100ma
      • Transmitter Filaments- 6.5 @ 2 amperes
      • Keying Relay- 6.o @ .5/6.9 @ .575 ampere

    RECEIVER

    • Frequency Range
      • Band 1 --- 6.6 to 12.0 mhz
      • Band 2 --- 3.6 to 6.6 mhz
      • Band 3 --- 2.0 to 3.6 mhz
    • Receiver Type: Superhetrodyne
    • Types of Signals Received: CW, MCW, and AM Phone
    • Number of Tubes: 7
    • Weight: 8 lbs
    • Intermediate Frequency: 456 khz
    • Method of Calibration: Built-In crystal oscillator
    • Calibration points: 200 kc intervals
    • Power Required
      • A- Power 1.4 volts at .45 ampere
      • B- Power 105 volts at .02 ampere (Stdby: .017 ampere)
    • Antenna: Same as AN/GRC-9 Transmitter

    POWER SUPPLIES

    TO BE CONTINUED.......

    Last Updated: July 15, 1998

    SHOW me a PHOTO of AN/GRC-9 TX-RX

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