This is the second in an occasional series of short posts that zero in on details of a specific technical topic in relation to projects here on this blog, which some readers may find helpful. A few weeks Ham Radio Outside the Box published a description of a "Mini Ground Tuning Unit (GTU)". The schematic … Continue reading TechTip #2: Observe the polarity of a GTU!
Tag: Antennas
A Simple Ladder Line Antenna for Portable Ops
For the last several weeks I have been experimenting with ideas for low impact field antennas that optimize stealth, rapid deployment and small footprint while maintaining efficiency. It's a trade-off between size, portability and efficiency. The antenna that is very small, highly portable and very efficient hasn't been invented yet - and never will be … Continue reading A Simple Ladder Line Antenna for Portable Ops
TechTip#1 – a continuous loop of cordage
This is the first in an occasional series of short posts here on Ham Radio Outside the Box. The purpose of these TechTips is to share useful techniques I have learned over the years. I hope you will find them helpful. TechTip#1 is an idea I picked up from a bushcraft video for creating a … Continue reading TechTip#1 – a continuous loop of cordage
A road trip with the VP2E antenna … and wolves
My wife and I recently took a short early summer vacation in the Haliburton Highlands area of Ontario. The area is just south-west of Algonquin Park (Ontario's first and by far the largest provincial park, most of which is accessible only by canoe with sometimes very long and challenging portages ... and with a very … Continue reading A road trip with the VP2E antenna … and wolves
What to do when the bands suck?
Solar cycle #25 has reached its peak and is on the decline again. We may still have a few years of good propagation left but I am planning ahead. During the last solar minimum I adapted by ... forgive me ... increasing my transmit power. This time around I hope to keep working QRP, but … Continue reading What to do when the bands suck?
An alternative mini-GTU design by Tim KQ4TQ
As I mentioned in the last post on Ham Radio Outside the Box, I received a surprise package in the mail from Tim KQ4TQ in Georgia. Tim sent me his build of a mini Ground Tuning Unit (GTU) that is simpler in design than the one I built. Tim's design is a single inductor of … Continue reading An alternative mini-GTU design by Tim KQ4TQ
The magic carpet ground plane is grounded, but the GTU keeps flying.
Ham Radio Outside the Box receives quite a lot of email every week from readers with questions, comments and suggestions. One such email came about as a result of an article in the outstanding newsletter from the Surrey Amateur Radio Club called the Communicator. The editor of the Communicator is Canadian Amateur Radio Hall of … Continue reading The magic carpet ground plane is grounded, but the GTU keeps flying.
A Mini Ground Tuning Unit and a magic carpet for portable ops
In the last couple of posts I discussed my quest for a simple portable antenna that could be rapidly deployed in a very limited space, for example in a small clearing while hiking through the woods. Such an antenna would have to be a short, yet efficient, vertical that occupies a very small footprint on … Continue reading A Mini Ground Tuning Unit and a magic carpet for portable ops
A Linear-Loaded Monopole antenna for hiking
There is a lot of information online about Linear-Loaded Dipoles, but I haven't found anything at all about cutting a Linear-Loaded Dipole in half to create a Linear-Loaded Monopole worked against ground. The legendary L.B. Cebik (W4RNL, SK) published a design philosophy for an 80m Linear-Loaded Monopole, but it didn't match what I had in … Continue reading A Linear-Loaded Monopole antenna for hiking
The “tootie-toosie” and the Hiking Antenna
My favorite way of operating is to hike into the woods, find a clearing, set up a quick and easy antenna, make one or more contacts and move on. Well, to be honest, I might pause long enough at a back country waypoint to get out my Aeropress and brew up a refreshing cup of … Continue reading The “tootie-toosie” and the Hiking Antenna
Ham Radio Outside the Box 