Category Archives: Radio

Ever wondered what I&Q are?

I was after a really good explanation of what the I & Q were when talking about SDR. These are better tan anything I could come up with. Thanks W2AEW!

Mini WSPR

So it works then. Mini WSPR’ing with the U3 on 20m with an indoor 1.5m whip antenna. Who said ham radio needs big stuff.

Echolink node update

Well the node is up and seems to be running reasonably well. The software is reporting distortion on the input but I think that is more to do with the close rf during testing. There are now some isolating transformers and a resistor in series to knock back a bit of signal and it seems… Read More »

AutoCAD files for Ultimate 3

I’ve used AutoCAD for a while (because I had a work licence) but since being promoted I didn’t need CAD software…boooo (I also had an inventor licence but that wasn’t used as much). Anyway, back to the point. I made a couple of front and rear panels for the QRPLabs ultimate 3 WSPR transmitter and… Read More »

APRS Maps

I’ve had a little play about whilst avoiding the household viewing of ‘Strictly come dancing’ aka ‘celebrity showing off’ with the APRS maps you can embed through APRS.fi I’ve added a little map to the site here Just a bit of fun but I do like APRS. Great for the fells. Trouble is it seems… Read More »

Progress on the node

There’s been a bit of positive progress on the node at g7kse headquarters. Mucking about with Echolink software proved a time consuming affair. This and that connected but not playing with each other and some absolutely horrendous noises coming out of all sort places and some shocking audio means that there is a good chance… Read More »

MB7IAH

Today I received a very nice email from Ofcom. It was my NoV for my echolink node. MB7IAH Whilst I won’t be able to get it up and running this weekend because we have guests I hope to have everything up, running and ready for use early next week. There is a restriction of 1.6w… Read More »

Echolink Node?

Over here in G (or M or 2) land echolink nodes need to have permissions from the grown ups. So I’ve sought permission from Ofcom, with the help of the RSGB. I applied for an MB7 node, which means it is can be unattended. In order to do this I needed a minimum of 4… Read More »

Solder fumes

Mention Health and safety and its likely you think of some Muppet decides that children need a suit of armour to play conkers (for those not lucky enough to have tried to make a horse chestnut seed the hardest material known to man, have a look here). Back to the point. I’m talking about looking… Read More »

Maidenhead Locators

Locators, or as us Brits call them, Maidenhead locators. Named after a town in Berkshire that isn’t close to the meridian but held a meeting by a bunch of VHF chaps in the early 80’s. In fact the now de facto method for looking something up (Google & Wikipedia) give us: ‘The Maidenhead Locator System… Read More »