
UNIDEN PRO520XL
Compact Mobile CB Radio
Uniden’s Professional Series PRO520XL Heavy-Duty CB radio offers a full 4 watts transmit power, with RF gain control, and 40-Channel operation in a compact rugged construction CB radio. The PRO520XL has a front mount 4-pin electret microphone with extra-long coiled cord, S/RF LED meter, instant emergency channel 9, transmit indicator lights, Automatic Noise Limiter switch, Public Address switch, Volume control, Squelch control, and more.

Signal/RF meter and LED indicators
Transmission indicator lights to monitor activity and signal reception
CONNECT EXTERNAL SPEAKERS
Built-in External Speaker Jack allows connecting to an optional external speaker. The Public Address function to be heard outside your vehicle with an optional PA speaker.



Instant Channel 9
Quickly set the radio to emergency/Channel 9

Superheterodyne Circuit
with PHASE LOCKED LOOP techniques to assure precise frequency control

Automatic Noise Limiter (ANL)
Reduces background noise from the car engine and other sources
Details
Width | 4.5" |
---|---|
Height | 1.375" |
Depth | 6.75" |
Weight | 1lb 10oz |
Input Voltage | 13.8 V DC nom. (+ or - ground) |
Power Output | 4 Watts |
Frequency Control | Phase Locked Loop (PLL) synthesizer |
Frequency Range | 26.965MHz to 27.405 MHz |
Operating Temperature | -30ºC to +50ºC |
Antenna Connector | UHF, SO-239 |
Audio Output Power | 7 watts max. into 8 ohms |
Automatic Gain Control (AGC) | Less than 10dB change in audio output for inputs from 10 to 50,000 microvolts |
RF Gain Control | Adjustable for optimum reception |
Squelch | Adjustable; threshold less than 1μV |
I.F. Frequency | Double Conversion Superheterodyne •1st 10.692 MHz •2nd 450 kHz |
Receiver Sensitivity | 0.5μV for 10 dB; (S + N) /N typical (limit 1.0μV) |