Tag: Antennas

Experiments with portable, base station and highly unusual antennas

Antenna Height Matters – True or False?

How often have you read that an antenna should be placed as high as possible - the higher the better? Is it true? My inner skeptic says "hmm, maybe". It's certainly an aphorism that is open to scrutiny. Aphorism? The American Heritage® Dictionary of the English Language defines "aphorism" as: "a tersely phrased statement of … Continue reading Antenna Height Matters – True or False? →

Rebuilding the Winter Rybakov Antenna

Almost a year ago I wrote a post entitled "A Simpler Field Expedient Rybakov Antenna for Winter". It is worthwhile to read that post to understand why I felt it necessary to make a winter version of a proven, tried and trusted antenna. My home turf is southern Ontario, Canada about 200km northwest of Toronto. … Continue reading Rebuilding the Winter Rybakov Antenna →

A Deep Dive into the Antenna Called “Long Tall Sally”

Back in the spring of 2024 Ham Radio Outside the Box introduced a very unusual field expedient portable antenna for 20m. It was dubbed "Long Tall Sally" because we took a standard quarter wave ground plane, stretched the vertical radiating element way out of resonance, then restored resonance by shortening the radials. This is what … Continue reading A Deep Dive into the Antenna Called “Long Tall Sally” →

“Old Barebones” – A QRP Z-match Builder Project

I actually don't like Z-matches very much, so why did I build one? I'll get to that in a moment, but first I should explain why I am not a fan of the Z-match. These devices comprise two variable capacitors and one fixed inductor. The fixed inductor limits the tuning range compared to other types … Continue reading “Old Barebones” – A QRP Z-match Builder Project →

The “Titanic” 40m Field Expedient Backpack Portable Antenna

The 40 meter band can be a tricky one for backpack portable operators. The problem is that antennas for that band tend to be large and require a tall pole. In the last post we discussed using a backpack as a support for quarter wave whips or short poles. In that role it is gravitationally … Continue reading The “Titanic” 40m Field Expedient Backpack Portable Antenna →

3 Days, 3 Activations, 3 Antennas

My wife and I enjoyed a short early fall vacation to take advantage of a period of warm, sunny weather. I used the opportunity to attempt some POTA activations and compare the performance of three of my field antennas in challenging propagation conditions. I had several parks on my radar and too little time to … Continue reading 3 Days, 3 Activations, 3 Antennas →

Random Wire Antennas – A Challenge to Common Knowledge

A random wire antenna's feedpoint impedance is 450 Ohms: True or False? It must be written on a stone tablet somewhere that an end-fed random wire antenna should be fed through a 9:1 impedance transformer. Common knowledge says a 9:1 transformer, in conjunction with a tuner will bring the impedance of a random wire antenna … Continue reading Random Wire Antennas – A Challenge to Common Knowledge →

How Does the Speaker Wire “No Counterpoise Antenna” Work?

Fellow blogger Craig WB3GCK recently posted an account of his build of the speaker wire "No Counterpoise Antenna" and I was immediately intrigued. In fact I rushed out to the store and bought myself a couple of 50ft rolls of 18AWG speaker wire to experiment. After a couple of days of intense backyard wire whispering … Continue reading How Does the Speaker Wire “No Counterpoise Antenna” Work? →

A 24ft Snake in my Back Yard – all lies and jest?

A snake in the grass! When singer/songwriter Paul Simon penned the lyrics to "The Boxer" in 1970 he may have anticipated my recent experiments with a particularly weird, unbelievable and incomprehensible antenna called "The Snake". A ham hears what he wants to hear and disregards the rest The snake I wrestled for a couple of … Continue reading A 24ft Snake in my Back Yard – all lies and jest? →