Specifications – Uniden PRO 640XL User Manual
Page 10
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Specifications
Channels:
40 AM, 40 USB, 40 LSB
Frequency Range;
26.965 to 27.405 MHz
Frequency Control:
Phase Locked Loop (PLL] synthesizer
Frequency Tolerance:
±0.005%
Operating Temp.:
-10"C to+50'C
Microphone:
Plug in type: dynamic
input Voltage:
13.8 VDC nom. [+ or — ground)
Current Drain:
TX; full mod., 3.0A
RX: with max audio output, 1.2A
Size:
6 7/8" Wx 8 1/4" Dx 2"H
Weight:
3 lb. 2 02.
Antenna Connector:
UHF, SO-239
LED Meter:
Indicates relative RF output and received sig
nal strength and standing wave ratio.
TRANSMITTER
AM maximunn of 4W
Power Output:
SSB rrtaxinnum of 12W PEP
Freq. Response;
300 - 2,500 Hz
Output Impedance:
50 ohms, unbalanced
RECEIVER
Sensitivity:
AM 0.5|iV
SSB
O.ISfiy
for lOdB [S + N)/N typical
Selectivity:
6dB
@
7KHz, 70dB @ 1 OKHz typical
Image Rejection:
75 dB typical
I.F. Frequency:
10.695 MHz
RF Gain Control:
Selectable attenuator for optimum reception
Automatic Gain:
(AGC): less than lOdB change in audio out
put for inputs from 10 to 50,000 microvolts
Noise Blanker:
RF type
Squelch:
Adjustable; threshold less than 1
¡u\/
Audio Output Power:
1
watts max. into 4 ohms
Freq. Response:
300 to 3,000 Hz
Distortion:
less than 10% @ 5 watts, @ 1,000Hz
Internal Speaker-
4 ohms, 7 watts round
External Speaker:
(not supplied) 4 ohms
PA System;
7 watts in external 4 ohm speaker