4:1 Current Balun
Today’s bit of homebrew saw me wind and test a 4:1 Current Balun – The PZT Shack features an aerial connection plate in the wall cavity which includes a couple of 1:1 Choke Baluns – One of these is in…
Read more
aerials
Lightweight Dipole Centre
For my /P outings, I make use of a 10m telescopic fishing-pole purchased from SOTAbeams which is able to support a variety of aerial configurations – My preferred being a coax-fed 40m Inverted-V or via 300-ohm balanced feeder as a…
Read more
HF Linked Dipole
This is a really versatile aerial for “portable” operating and is also quite simple to make – It’s a 40m Inverted-V Dipole but with the wires cut at certain points with crocodile-clips soldered onto each piece of wire end. This…
Read more
Coax Power Ratings
A useful thing to know – whether it’s critical as part of a project, or simply as a Ham Radio factoid – just how much power can different types of coax handle? The popular types, RG-58 and RG-213 are listed…
Read more
Too Early for Portable?
…maybe it is – especially with the very typical seasonal (and very British!) weather that we’ve had over the past few weeks. Lots of rain, gusts of wind and even some snow. It’s also been sunny and, in places, 14’c. …
Read more