Guardian G25AMK005, Technical Manual

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1-2 G U A R D I A N V H F 1 1 0 W M O B I L E
Model Designation Guardian VHF Mobile Radio
Receiver (Measurements per TIA/EIA 603 Standards)
Sensitivity Digital Mode: 5% BER
Analog Mode: 12 dB SINAD
-116 dBm or greater
Spurious -70 dB
Intermodulation -70 dB
Audio Output Power 10W, 4 Ω external, 5W, 8 Ω internal speaker
Audio Distortion (at 1000 Hz) 3%
Frequency Stability (-30° to 60°C) ± 1 ppm
Maximum Frequency Separation Full-band split
Transmitter (Measurements per TIA/EIA 603 Standards)
RF Power Output 25W to 110W, adjustable
Spurious and Harmonic Emissions -70 dB
FM Hum and Noise (wideband) -46 dB @ 25 kHz/-40 dB @ 12.5 kHz
FCC Modulation Designators 16K0F3E, 11K0F3E, 20K0F1E
Audio Distortion (at 1000 Hz) 2%
Audio Response (1000 Hz Ref.) ± 3 dB, 300 to 3000 (EIA/TIA 603)
Frequency Stability (-30°C to 60°C) ± 2.5 ppm
Maximum Frequency Separation Full bandwidth
Environment Specifications (MIL-SPEC)
Environment 810C 810D 810E
Method Procedure Method Procedure Method Procedure
Low Pressure 500.1 I 500.2 I 500.3 II
High Temp. 501.1 I, II 501.2 I, II 501.3 I, II
Low Temp. 502.1 I 502.2 I 502.3 I
Temp. Shock 503.1 I 503.2 I 503.3 I
Solar Radiation 505.1 I 505.2 I 505.3 I
Humidity 507.1 II 507.2 II (5) 507.3 II (5)
Salt Fog 509.1 I 509.2 I 509.3 I
Dust and Sand 510.1 I 510.2 I 510.3 I, II
Vibration 514.2 VII(W) 514.3 I (1) 514.4 I (1)
Shock 516.2 I, II, V 516.3 I 516.4 I