DJ0WH

The DP4000 series just got a lot safer (and a little bluer)

This week, Motorola Solutions introduced the DP4401 and DP4801 ATEX MOTOTRBO portable radios. These radios provide high quality communica...

The Voice Announcement feature in the second generation MOTOTRBO radios allows the user to hear pre-recorded voice announcements whenever t...

Earlier this year, I had a look at a Capacity Plus system where the customer was complaining of the system being permanently busy. After a f...

The current (2nd) generation MOTOTRBO radios, all have the ability to display a welcome image when powering on. There are specific require...

I am proud to say, that a fair amount of what I know about superhetrodyne receivers; squelch circuits; frequency multipliers and VHF power a...

***Update 01.05.18*** There's been a few spam comments on this post and some commentators were advertising companies involved in techn...