8-20 Model Chart and Test Specifications
Transmitter
Specification VHF/UHF
Frequency Stability:
(-25°C to +55°C, +25° Ref.)
±2.5 ppm
Power: VHF: 1-5W
UHF: 1-4W
Modulation Limiting: ±2.5 @ 12.5 kHz
±4.0 @ 20 kHz
±5.0 @ 25 kHz
FM Hum & Noise: -40 dB typical
Conducted/Radiated Emission: -66 dBw
Adjacent Channel Power: -60 dB @ 12.5 kHz
-70 dB @ 20/25 kHz
Audio Response: (300 - 3000 Hz) +1 to -3 dB
Audio Distortion: 3%
Receiver
Specification VHF/UHF
Frequency Stability:
(-25°C to +55°C, +25° Ref.)
±2.5 ppm
Sensitivity (12 dB SINAD) EIA:
Sensitivity (20 dB SINAD) ETS:
.25 µV typical
.50 µV typical
Intermodulation EIA: 70 dB
Adjacent Channel Selectivity: 60 dB @ 12.5 kHz / 70 dB @ 20/25 kHz
Spurious Rejection: 70 dB
Rated Audio: 0.5W
Audio Distortion @ Rated Audio: 3% typical
Hum & Noise: -45 dB @ 12.5 kHz
-50 dB @ 20/25 kHz
Audio Response: (300 - 3000 Hz) +1 to -3 dB
Conducted Spurious Emission per FCC Part 15: -57 dBm <1 GHz
-47 dBm >1 GHz
Specifications subject to change without notice. All electrical specifications and methods refer to EIA/TIA 603 standards. Professional Series radios meet
or exceed requirements of MIL STD 810 C, D, E.
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