Software Defined Radios Make Great $20 Receivers for Fire, Sheriff, DPS, or Anything Else...

 Software Defined Radios are the latest thing in radio scanners, receivers and transceivers.  For $20 to $50 on eBay you can have a cool receiver that covers all frequencies from 24 Mhz to 1766 Mhz. That's from just below CB frequencies to microwave frequencies. 

The interface is easy to use, plug it into a USB port, download the HDSDR software and enter the frequency you want to listen to, or record the radio traffic on the built in recorder.

This is the same type of receiver the government uses to find bugs, your signals, or anyone talking on pretty much any frequency.

Here you can see a number of signals being received. If you want to listen then just click on the signal in the upper part of the screen you're interested in listening to. 

You can select several types of signals, AM, FM, USB Upper Sideband, LSB Lower Sideband, CW Morse Code, and Digital signals.

Listening to scanner frequencies is fun, and can be very useful in knowing what's going on in rural areas like ours.. 

Have Fun.... 

Jay 

Ham call sign KA7MBQ 

GMRS call sign WQRS930