40 Channel Compact Professional CB Radio

• Compact Size-The PRO 520XL is small enough to fit almost anywhere. Superior
  engineering and micro­electronics insure the same quality and performance of larger units.
• Microphone-Connect the rugged, professional quality microphone included with unit.
• Channel 9 - One button gives instant access to the emergency channel 9.
• S/RF Meter-An accurate 4 segment LED meter shows the signal strength of the receiver and transmitter.
• TX LED-Lights to indicate when the unit is transmitting.
• Channel Display-A large LED display shows the current channel in use.
• Channel Selector-An oversize channel knob makes it easy to select any of the forty
   channels.
• RF Gain -Adjust the sensitivity of the receiver for strong or weak signals.
• Squelch Control-Adjust the threshold of the receiver to eliminate background noise
   whenever a transmission is not being received.
• Volume Control-Turn the unit on or off and adjust the volume.
• PA Switch - Select the Public Address mode if an external PA speaker is installed.
• ANL Switch-The Automatic Noise Limiter helps reduce unwanted noise for better
   reception.
• Mounting Bracket- All mounting hardware is included for most any installation.

0.7 uV for 10 dB: (S + N)/N 
typical (limit: 1.0 uV)

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

75 dB typical

Double Conversion Superheterodyne
1st - 10.695 MHz, 2nd - 450 KHz

(AGC) - less than 10 dB change in
audio output for inputs from 10 to 50K microvolts

Adjustable - threshold less than 1 uV

7 Watts max. into 8 ohms

300 to 2000 Hz  

less than 10% at 4 Watts, 1000 Hz

16 Ohms, 3 Watts round  

7 Watts into external 8 Ohm speaker

4 Watts

Class B amplitude modulation

300-2500 Hz  

50 Ohms, unbalanced