I wasn’t sure whether to post this or not as it’s not specifically amateur radio – But there’s a small amount of electronics involved so I figured it might be of interest. A few days ago while Susan and I were out, I received a text from my son saying “I thought you’d like to […]
Over the years I’ve used a few different VHF/UHF aerials here and the one I always found the best was my old Diamond X500. I bought that when I still lived at home with my parents and it moved here with me. It ran my original AX25 packet radio BBS and then MB7UIV and was only […]
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 and GB7TE most of the time. About the only thing which I don’t like about this […]
I’ve been moving some boxes around recently and I unpacked the bandpass filters I built for one of the Martello Tower Group DXpeditions and successfully used again during our activation of the MV Ross Revenge in August 2016. It struck me that I’d never produced a full set of figures showing rejection on each band, insertion […]
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 connected to the internet 24/7 except for periods when the connection dropped out and the […]
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 me so I’ve prepared an image that just requires a handful of configuration changes which I will […]
** This is now outdated, I recommend the pre-built image from here rather than following these instructions. I can not support this method any more ** 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 […]
Following on from my last update, I’ve spent a fair bit of time experimenting with two very different ADS-B aerial configurations. I have two Raspberry Pi3s, both running identical software and exactly the same receivers, the FlightAware Pro Stick Plus which is a version of the RTL-SDR dongle with a built in preamplifier and bandpass filter. […]
I realised recently that I’ve barely touched this blog for most of 2016 and I suppose that’s because I’ve not done a massive amount of radio this year. My low powered QRSS/WSPR transmitter continues to run mostly 24/7 on various bands (on 30m at time of writing) and my radio high point of the year […]
After my entry a few days ago, I’ve made a video of my Hans Summers Ultimate 3S transmitter going through all four modes in a single ten minute frame. It’s annotated with comments along the way describing what’s happening at every stage.
