Roger G3XBM's (Mainly) Amateur Radio Blog

Some months ago I swapped my little used X80 multi-band vertical for a Wellgood RX active loop. This is essentially the same as the Wellbroo...

Today I converted my earth electrode antenna with elevated feed wires into a full "in the air" loop for both 500kHz and 136kHz. As...

The Snowdonia Radio Company is offering the SRC X80 , a 5.8m long multi-band HF vertical matched via a 9:1 unun matching box. This sells fo...

Today I have to move my two main antenna feeders which wind their way untidily through the house from the back of the house, where they ente...

See http://www.nist.gov/public_affairs/techbeat/tb2010_0126.htm#antenna "The National Institute of Standards and Technology (NIST) and...

Matching my antenna at 500kHz has been a bit hit and miss: my technique, if you can call it that, has been to match the antenna "by ear...

Yesterday I used a PA0RDT designed active antenna (but with MPF102 and 2N3904 devices and a 9V supply from a PP3 battery)to listen success...

Just tried a PA0RDT designed active antenna (but just used an MPF102 and 2N3904 instead as these devices were to hand) with 1m of wire, la...