Uniden UH-057 manual Transm itter

Transm itter

Power Output
HI		: 4W (nominal), 5W (max.)
lOW		: 1W (nominal)
Modulation		: F3E, :t5kHz Deviation
Frequency	Tolerance
at 25°C		: :t300	Hz (nominal)
Mic. Sensitivity
at :t3kHz Dev.		: 4.5mV	(nominal)
Hum and Noise
(300Hz,	3kHz BPF)
(750jlS	DeEmp)	: 40dB
Modulation	Frequency	Response
at 1kHz:t1 kHz Dev.
500Hz		: -6dB
2000Hz		: +7dB
Current Drain		: 1800mA
at HIGH	Power
Receiver
Sensitivity
at 12dB SINAD		: 0.35jl	V (nominal)
Squelch Sensitivity		: 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%
Hum and Noise	: 40dB
Adjacent Channel
Selectivity	: 60dB
at :t25kHz
Image Rejection Ratio	: 45dB
IF Rejection Ratio	: 55dB
Current Drain
Max Volume	: 250mA
Squelched	: 50mA

SELCALL

Standard		: CCIR International
Encode/Decode Format		: 5 or 6 Tones
Transmit	Tones	: 0-9, A-D, F
Receive	Tones	: 0-9, A-D, F
Tone Periods		: 20,40,70,100 mSec
lead-In	Delay	: 500 mSec, 1, 2, 3, 4, Sec
lead-In	Tone	: 0-9, A-F
UH-O57		Page 40

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