Roger G3XBM's (Mainly) Amateur Radio Blog

A few weeks ago some friends called at the Poldu radio museum. They mentioned that I used to work for Philips and the person there said he k...

From Jos: Hi Roger, More on Marconi Day... https://www. kerryamateurradiogroup.com/ news/international-marconi- day-2017 Kind regards, Jos.

Although I have no more data, Southgate News reports that Marconi Radio International will be on the air tonight (Tuesday April 18th) and l...

This evening I have been noting my WSPR S/N reports from stations across the country and nearer Europe using my 9m long Marconi antenna and ...

So that I can better quantify the performance of my various earth electrode "antennas" I have today erected a 9m long top loaded M...

With several hundred WSPR spots of my QRP signal received today on 472kHz, I have tried to do a crude analysis of the difference in performa...

The first public broadcasts in the UK were not by the BBC but a few years before in 1920 from the station 2MT in Writtle, Essex. It was kn...

For the last month whilst testing my 472/500kHz transverter I've been using a highly compromised antenna. Essentially it is a very short...

ATU for 136kHz. Antenna connected to top of ferrite rod Disappointing results yesterday with a very short Marconi vertical tuned using a...