If you’ve ever used an NE602 or similar IC to build a radio, you might have noticed that the datasheet has a “gilbert cell” mixer. What is that? [Electronics for the Inquisitive Experimenter] explains ...

The Midland GXT67 Pro GMRS walkie talkie and the Rocky Talkie "5-Watt" model GMRS hand held radio.. Both of these GMRS radios are high end "adventure" radios made for outdoor use.

Range test of the BTech GMRS 50X1 50 watt mobile GMRS radio. We wanted to see how far we could talk using the BTech 50 watt mobile radio so we took a drive in the Jeep and were surprised by the result ...