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Sheet 2

Page 9

SPECIFICATIONS

G

eneral

Channels

40 AM

Frequency Range

26.965 to 27.405 MHz

Frequency Control

Phase Locked Loop (PLL) synthesizer

Frequency Tolerance

±0.005%

Operating Temperature -30ºC to +50ºC

Microphone

Plug in type, dynamic

Input Voltage

13.8 V DC nom. (+ or - ground)

Current Drain

TX full mod., 1.7A

RX with max. audio output, 1.7A

Size

4-1/2” W x 6-3/4” D x 1-3/8” H

Weight

1 lb. 10 oz.

Antenna Connector

UHF, SO-239

LED Meter

Indicates relative RF output and received signal strength

T

ransmiTTer

Power Output

4 Watts

Modulation

Class B amplitude modulation

Freq. Response

300-2500 Hz

Output Impedance

50 ohms, unbalanced

r

eceiver

Sensitivity

0.5μV for 10 dB; (S + N) /N typical (limit 1.0μV)

Selectivity

6 dB @ 7kHz, 70 dB @ 10kHz typical

Image Rejection

80 dB typical

I.F. Frequency

Double Conversion Superheterodyne 

1st 10.692 MHz 

2nd 450 kHz

RF Gain Control

Adjustable for optimum reception

Automatic Gain Control 

(AGC)

less than 10dB change in audio output for inputs from 10 

to 50,000 microvolts

Squelch

Adjustable; threshold less than1μV

Audio Output Power

7 watts max. into 8 ohms

Freq. Response

300 to 2000 Hz

Distortion

less than 10% at 4 watts, 1000Hz

Internal Speaker

16 ohms, 3 watts round

Specifications and features are subject to change without notice.

Summary of Contents for PRO 520XL

Page 1: ...PRO 520XL Professional Mobile CB Radio UTZZ01363ZA 0 Printed in Vietnam...

Page 2: ...y Uniden you may be in violation of FCC technical regulations in Part 95 or type acceptance requirements in Part 2 of the FCC rules CB license requirement U S users no longer need to apply for a licen...

Page 3: ...u must use a CB antenna sold separately with this radio PARTS OF THE RADIO Front 1 PA Switch Activates the Public Address feature see Connecting external speakers 2 ANL Switch Activates the Automatic...

Page 4: ...ption 11 Channel Selector Selects which channel the radio will transmit or receive on Back 12 Model label Shows the model number FCC ID number and serial number 13 Antenna Connector Connects to a male...

Page 5: ...ower supplies with a POSITIVE ground connect the BLACK lead on the radio to the power supply s NEGATIVE pole and connect the RED lead to a neutral ground such as the chassis 3 Turn on your power suppl...

Page 6: ...ust the antenna until the SWR is as close as 1 1 as possible CAUTION Make sure the SWR is less than 2 1 before using the radio An SWR higher than 2 1 can damage the transmitter Your Uniden dealer can...

Page 7: ...voice Release the button to listen for a response Using the PA feature Move the PA switch up this turns off the CB radio and activates the PA speaker On the microphone press and hold the PTT button Ho...

Page 8: ...our vehicle s electrical system Poor reception 1 Adjust the squelch level 2 Check the antenna cable and connectors 3 Check operation mode of the radio Background noise 1 Turn on the automatic noise li...

Page 9: ...ass B amplitude modulation Freq Response 300 2500 Hz Output Impedance 50 ohms unbalanced Receiver Sensitivity 0 5 V for 10 dB S N N typical limit 1 0 V Selectivity 6 dB 7kHz 70 dB 10kHz typical Image...

Page 10: ...nty to the original user shall terminate and be of no further effect 24 months after the date of original retail sale The warranty is invalid if the Product is A damaged or not maintained as reasonabl...

Page 11: ...structions in the owner s manual you are certain that the Product is defective pack the Product carefully preferably in its original packaging The Product should include all parts and accessories orig...

Page 12: ......

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