DJ0WH

Extended Range Direct Mode

Extended Range Direct Mode enables repeater operation on a simplex radio channel. Radios on an ERDM channel transmit on one slot and receive...

As of R2.7.0, it is possible to prevent a radio from responding to any command from a rogue (unknown/unauthorised) radio. Examples of the...

In the survey I got some requests to include posts in other languages. Some personal details (skip to the last paragraph if you'r...

This is an advert for a Motrac mobile two way radio from 1959. I seem to recall uninstalling some of these from vehicles simply because t...

Prior to R2.4 the method for AES 256bit encryption was not clearly defined in the DMR standard. As a result, Motorola used their own im...

I would like to understand my audience better and invite you to take part in a quick survey. It's only 10 questions and completely ano...