Uniden PRO-538W Features:
40 AM Channels operation
3 NOAA Weather Channels, 162.550, 162.400, 162.475 MHz.
Switchable PA Mode, Instand Channel 9 and Waether Channel switch.
Variable Volume, Squalch and RF Gain Controls
Industry Standard 4 Pin Face mounted microphone connection.
13.8VDC Positive or Negative Ground, Less than 2 Amps of power required.
Compact design, 6.9"W x 2"H x 8.3 D
Exceptional receiver, Sensitivity os 0.5 microvolts for 10 dB; (S+N)/N typical
Front fire speaker.
Rear mounted jacks for PA Speaker, and External Audio speaker.
Uniden 2 Year Limited Factory Warranty
Uniden PRO-510XL Features:
40 AM Channels operation
Switchable ANL, Volume and Squalch Control.
Industry Standard 4 Pin Face mounted microphone connection.
13.8VDC Positive or Negative Ground, Less than 2 Amps of power required.
Very compact design, 4.5"W x 6.75"D x 1.4"H, Weight of under 2 Pounds.
Exceptional receiver, Sensitivity os 0.5 microvolts for 10 dB; (S+N)/N typical
Dual Conversion receiver 1st IF: 10.692 MHz, 2nd IF: 455 kHz.
Excellent receiver selectivity, 6dB @ 7kHz, and 70 dB @ 10 kHz.
Image Rejection of 80 dB, Better than many high dollar radios.
7 Watts of Audio into 8 Ohm speaker, enough to even the loudest truck installations.
Rear panel external speaker jack, allows you to put on an even more powerfull speaker.
Uniden 2 Year Factory Warranty
It is larger but it will fit. It will stick out a lot further though.
Also this is a better radio and I've seen it fitted below a Pioneer head unit.
Midland 79-290 AM/USB/LSB transceiver with with 10 NOAA weather channels.
Detachable Face plate control panel.
Output Power:
12 watt SSB
4 watt AM
On/off volume control.
Variable squelch control.
Last channel recall button.
LOC - DISTANT button.
Mic gain button.
Instant Channel 9 and 19 button.
4 channel memory
Coaxial Coarse & fine tuning
Dual Channel watch Function.
All channel Scan Function.
Frequency or channel display functions.
CB / WX band selector button.
CB Mode Selector Button.
Jacks for external speaker
Includes
Dynamic mic
Industry standard 4-pin mic connector
DC power cord
Mounting bracket and hardware.
Size 6-1/4"W x 2"H x 7"D.