Category: DMR

MMDVM Hotspot and the new Raspberry Pi Zero 2 W

A short while ago, the new Raspberry Pi Zero 2 W was announced. The original Pi Zero and the Zero W are widely used in MMDVM based hotspots and the new Zero 2 W is a direct, drop in replacement. The most obvious question is whether you need to replace your Pi Zero with a […]

How to update and upgrade your Pi-Star based hotspot

PI-Star SSH logged in

There are a couple of methods of updating a Pi-Star based MMDVM hotspot, one upgrades Pi-Star itself and the other method does a full operating system update as well as Pi-Star. The Pi itself automatically runs a process overnight that updates the host file and various other things but this is how to do a […]

A quick tip for your hotspots

With all the hotspots I have in the house for various modes, I decided to do something about the RF. They all run very low power but they’re only for me to use and I didn’t want the RF escaping the house. I bought a few tiny little dummy loads from eBay and replaced the […]

How to set up a Yaesu System Fusion reflector (YSFReflector)

NOTE – 22nd April 2023I have provided a new version of install.sh, if you have had problems with a ysfreflector.ini error, please start the install again from the first ‘sudo wget’ command. Over the last four or five years I’ve been a regular user of two digital voice modes, D-STAR and DMR. I don’t particularly […]

Building an MMDVM hotspot on a budget

MMDVM Hotspot attached to the Raspberry Pi Zero

I bought myself a new handheld at the Newark rally earlier this year, an Anytone AT-D878UV to use on DMR. When I went on holiday in October, I took a couple of copies of RadCom with me and in one of them there was a review of my handheld. The author mentioned that he’d used […]

DMR – My thoughts about Digital Mobile Radio

TYT MD-380 DMR UHF handheld

I’ve written a couple of times in the past about various digital voice modes and if I’m honest, I’ve been quite scathing of them.  I make no secret of the fact that I’m very happy to use repeaters for local natter but don’t like the idea of linking remote repeaters together via the internet to […]

Are you transmitting illegally on 70cms?

An interesting subject came up on our 70cms voice repeater earlier today following an incident on a local DMR box yesterday and it got me thinking. There are a lot of 70cms repeaters in the UK with input frequencies between 430 MHz and 431 MHz and many people don’t realise that our licence only allows […]