Category Archives: FM

Updated guide to setting up an APRS RX only iGate using a Raspberry Pi, RTL-SDR dongle and a pre-built image

** image has been updated as of 21/04/2018 to resolve the problems some people had booting their Pi ** This post is an updated version of the original article I wrote in February 2017.  It’s using Raspbian Stretch rather than … Continue reading

Posted in Amateur radio, APRS, Data, FM, Raspberry Pi, VHF | Tagged , , , , , , | 45 Comments

DMR – My thoughts about Digital Mobile Radio

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 … Continue reading

Posted in Amateur radio, D-STAR, DMR, FM, UHF | Tagged , | Leave a comment

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 … Continue reading

Posted in Amateur radio, D-STAR, DMR, FM, Operating tips, UHF | Tagged , , , , , | 2 Comments

How to replace the noisy fan in an Icom ID-5100 with a much quieter one

I’m a happy owner of two Icom ID-5100 radios, one is mounted in the car and I use the other one in the shack on low power for working the local repeaters.  It doesn’t get much use but I’m monitoring GB3CL … Continue reading

Posted in Amateur radio, Construction, D-STAR, FM, VHF | Tagged , , , , , , , | 9 Comments

MB7UIV is back

A little history In January 2000 I started running the first licensed APRS Internet gateway in the UK originally with the callsign GB7UIV.  Within a week of experiments starting on the 26th January 2000, the gateway was on air and … Continue reading

Posted in Amateur radio, APRS, Data, FM, Raspberry Pi, VHF | Tagged , , , , , , | Leave a comment

Setting up an APRS RX only iGate using a Raspberry Pi, RTL-SDR dongle and a pre-built image

After my previous post, it was suggested that an easier way to set up a receive only APRS iGate would be to provide a pre-built image which only needs slight tweaking to go live.  That seemed like a good idea to … Continue reading

Posted in Amateur radio, APRS, Data, FM, Raspberry Pi, VHF | Tagged , , , , , , | 122 Comments

A guide to setting up an APRS receive only iGate using a Raspberry Pi and an RTL-SDR dongle

I originally bought a Raspberry Pi back in October 2012 but as I didn’t have a specific purpose in mind for it, I quickly sold it again.  A few months ago I decided to play around with a Pi again … Continue reading

Posted in Amateur radio, APRS, Data, FM, Raspberry Pi, VHF | Tagged , , , , , , | 56 Comments