Transmitter, Receiver, Selcall – Uniden UH-057 User Manual

Page 42

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Transmitter

Power Output

HI
LOW

Modulation
Frequency Tolerance

at 25'’C

Mic. Sensitivity

at ±3kHz Dev.

Hum and Noise

(300Hz, 3kHz BPF)
(750^3 DeEmp}

Modulation Frequency Response

at 1kHz +1kHz Dev.

4W (nominal), 5W (max.)

1W (nominal)
F3E, ±5kHz Deviation

±300 Hz (nominal)

4.5mV (nominal)

40dB

500Hz

2000Hz

Current Drain

at HIGH Power

: -6dB
: +7dB

; 1800mA

Receiver

Sensitivity

at12dBSlNAD

Squelch Sensitivity

: 0.35fi V (nominal)
: 0.20fi V (nominal)

(Auto-squelch: ON)

Audio-Frequency

Response (ref: 1kHz, ±3kHz 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

at ±25kHz

: 60dB

Image Rejection Ratio

: 45dB

IF Rejection Ratio

: 55dB

Current Drain

Max Volume

: 250mA

Squelched

: 50mA

SELCALL

Standard

Encode/Decode Format

Transmit Tones

Receive Tones

Tone Periods

Lead-In Delay
Lead-In Tone

: CCIR International

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

UH-057

Page 40

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