Search this website:
Custom Search

Friday, 30 December 2016

DMR radios to avoid!

There has been a new trend lately of the Chinese radio manufacturers making DMR radios that don't do TDMA. TDMA is the pulsing the radio does that actually makes it transmit only half the time on the channel, allowing another user to transmit in the other half. This is what allows DMR repeaters to repeat two conversations at once. TDMA is a fundamental part of the DMR standard.

These new "DMR" radios that have only come about recently are unable to do TDMA. They are being sold in many cases as tier 2 DMR radios, which means they should be able to do TDMA to use repeaters properly, but they cannot. (See my video for an explanation of the difference between the tiers).

Thursday, 22 December 2016

Radio Scanning: Ambulance Stabbing Response


This was a local volunteer ambulance service responding to a call for a stabbing. Go to 00:15 to skip the intro text.
The video was taken a while ago but not uploaded until now because I generally don't like to upload clips of current systems that I can still hear, in case it prompts them to move to encrypted digital systems. Since they've now moved to an encrypted digital system anyway and can no longer be listened in to, there's no reason not to upload this anymore. The video is intentionally blurred.

The radio being used it a TYT MD-380. You can buy the TYT MD-380 by clicking here.
(This link redirects you to the most appropriate site for your country)
Or if you want a waterproof version, buy the MD-390 by clicking here.
(This link redirects you to the most appropriate site for your country)

Popular Posts