Transm itter
Power Output
HI
lOW
Modulation
Frequency Tolerance
at 25°C
Mic. Sensitivity
at :t3kHz Dev.
Hum and Noise
(300Hz, 3kHz BPF)
(750jlS DeEmp) : 40dB
Modulation Frequency Response
at 1kHz:t1 kHz Dev.
500Hz
2000Hz
Current Drain
at HIGH Power
Receiver
Sensitivity
at 12dB SINAD
Squelch Sensitivity
: 4W (nominal), 5W (max.)
: 1W (nominal)
: F3E, :t5kHz Deviation
: :t300 Hz (nominal)
: 4.5mV (nominal)
: -6dB
: +7dB
: 1800mA
: 0.35jl V (nominal)
: 0.20jl V (nominal)
(Auto-squelch: ON)
Audio-Frequency
Response (ret: 1kHz, :t3kHz Dev.)
500Hz :+6dB
2000Hz :-7dB
Total Harmonic Distortion
at Standard AF Output
(50mW at 4 ohm load)
:3%
: 40dB
Hum and Noise
Adjacent Channel
Selectivity
at :t25kHz
Image Rejection Ratio
IF Rejection Ratio
Current Drain
Max Volume
Squelched
: 60dB
: 45dB
: 55dB
: 250mA
: 50mA
SELCALL
Standard : CCIR International
Encode/Decode Format
: 5 or 6 Tones
: 0-9, A-D, F
: 0-9, A-D, F
: 20,40,70,100 mSec
: 500 mSec, 1,2, 3, 4, Sec
: 0-9, A-F
Transmit Tones
Receive Tones
Tone Periods
lead-In Delay
lead-In Tone
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UH-O57
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