Roger G3XBM's (Mainly) Amateur Radio Blog

Based on some measurements and calculations using the improved ATU (see photo) today, this is my calculation: Measured antenna current in ...

Today I made a start on improving my ERP on 137kHz and 500kHz. Firstly, I've bought a pile of Wima 1000V polypropylene capacitors from...

OFCOM has confirmed that the UK NoVs to operate in the 8.7-9.1kHz VLF band will be extended later this year if holders request this.  Discus...

Some people in the UK, including me, have been unable to find wsprnet.org today. After working perfectly overnight the site just disappeare...

As the USA starts its next election campaign I'm seriously worried that the country is likely to end up being run by a brain dead, ignor...

Stations copying me on 500kHz WSPR Last evening's WSPR outing on 500kHz was very successful considering this is August. 10 differe...

This afternoon John GM4SLV informed me he was restarting tests on 500kHz WSPR from way up in the Shetland Islands with about 150mW ERP.  So...

Just discovered Google also do a "shorten your URL" feature too. Go to http://goo.gl/ to try it out. I knew about tinyurl but onl...

Just a couple of days ago I placed an order with Bitsbox , a UK component supplier for a variety of components needed in my upcoming VLF/LF...

The Southgate amateur news page carries a story that Heathkit may be about to start the production of kits again after a break of many year...