Roger G3XBM's (Mainly) Amateur Radio Blog

Today 10m sounded like the good old days with good strong contest signals from the USA and Canada as well as South America and Africa earlie...

This morning I did some more tests using my little 136.93kHz 2W QRSS3 beacon feeding into the 20m spaced earth electrodes. The TX end was ...

The well known range of QRP kits from Kanga are now available again in the UK. These include the FOXX3 transceiver and the Sudden receiver....

Only had a brief chance to operate today as I was busy in the garden then out at a BBQ in the hot sunshine, but managed to work some 6m QRP ...

A talk called "QRP Why and How" by G3RJV is available now on the BATC website. Go to http://www.batc.tv/ and click on the 'Fi...

VE7SL has a neat little LF/MF TX circuit on his website which is suitable for QRP 136 or 500kHz operation. Its original application was fo...

As promised, I've put a small video about the Sixbox 6m AM transceiver on my YouTube channel. You will recall that the Sixbox was a sma...

Just put a short video of my tiny ATU for 500kHz onto YouTube.

Today I've added a couple more videos to my G3XBM YouTube Channel . They are of the Fredbox 2m AM transceiver and of the FETer 80m CW tr...

There is now a short video clip on YouTube describing my 500kHz QRP transverter. Sorry the quality is not brilliant but I had problems holdi...

This evening, for a change, I fired up my little Elecraft K1 4 band QRP CW transceiver that I built a few years ago. Not much doing on 20m o...

The CQWW SSB contest has livened things up on 10m this weekend, but the sunspots are also showing signs of activity again and the band gener...

Mike has done it again - a superb piece of QRP creativity. This is from his email today: "AA1MY and W1PID met with me on 3686kHz this ...

A few people are currently experimenting with sound powered RF transmitters, generating the DC power to run a microwatt level oscillator fr...

Just got this letter from M0BMU who has estimated my ERP on 500kHz currently . Dear Roger, LF Group, It is interesting to make an estimate ...

On 160m I have an almost useless antenna by accepted standards: just 15m of low wire down the garden and a central heating ground. Not only ...

This afternoon I worked G3PTQ in Bottisham, 6kms away with the 50mW Sixbox AM transceiver . Report was RS41 (weak, but 80% readable). Then ...

Two local tests with stations on 6m AM have shown just how noisy the band can be when using this mode. M1KTA was 18kms away and M1MAJ around...