Hy-Com Communications Ltd.

GENERAL

• Frequency of Operation: 118.000 to 136.975 MHz
• Channel Spacing: 25 kHz/8.33 kHz
• Number of Memory Channels: 20 memory channels channels
• Type of emission: 6K00A3E (AM)
• Antenna Connector: SO-239 (50 ohms)
• Temperature range: -30°C to +60°C, -22°C to +140°F
• Power supply voltage: 13.75 V DC or 27.5 V DC (negative ground)
• Current drain (at 13.75 V DC): Rx stand-by: 500 mA, Rx AF max: 4.0 A, Tx 5.0 A
• Frequency stability: ± 5 ppm
• Dimensions: (W) 150 mm x (H) 50 mm x (D) 180 mm (projections not included)
• Weight: approx. 1.5 kg

TRANSMITTER

• Output Power: 9 Watt carrier, 36 Watts PEP (typical)
• Modulation System: Last stage modulation
• Mike Input Impedance: 600 ohms
• Audio Harmonic Distortion: less than 10% at 85% modulation
• Spurious emissions: -16 dBm or less (except ± 62.5 kHz of operating frequency)
• Hum and Noise Ratio: more than 40 dB

RECEIVER

• Intermediate frequency: 1st - 38.85 MHz, 2nd - 450 kHz
• Sensitivity: Less than 1 uV at 6dB SINAD
• Squelch sensitivity: Less than 0.35 uV typical at threshold
• Selectivity:

  At 25 kHz channel spacing ± 8 kHz Less than 6 dB ± 17 kHz Less than 40 dB ± 25 kHz Less than 60 dB

  At 8.33 kHz channel spacing ± 2.778 kHz Less than 6 dB ± 7.37 kHz Less than 60 dB

  Spurious response rejection ratio: More than 74 dBu

  Hum and Noise: More than 25 dB

  Audio output power (at 13.75 volts):

  Internal Speaker - 1.5 Watt typical with an 8 ohm load

  External Speaker - more than 10 W at 10% distortion with an 8 ohm load

  Sidetone - More than 100 mW at 10% distortion with a 500 ohm load

  Audio Output Impedance:

  External Speaker - 8 ohms

  Headset (side tone) - 500 ohms

OPTIONS

• OPC-871 Headset Adapter:
  For connection to a standard two plug aviation headset. Also requires adding a Push-to-talk switch, which plugs into the OPC-871.

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