Let's get real here! If we lay a wire antenna on the ground, surely It can't radiate more power than that cool-looking, expensive quarter-wave whip you just spent a small fortune to buy? Well, yes it can - but with a few caveats. We can use a trick of geometry to support our claim. Our … Continue reading How Can A Lossy Wire on the Ground Work Better Than A Quarter Wave Vertical Antenna?
Tag: Outdoor Ops
An Off-Center Fed Sleeve Dipole
At Ham Radio Outside the Box the urge to experiment is always front and center. Isn't that what radio amateurs are supposed to do - continuously improve our knowledge and hone our expertise? In the minds of the government departments that give us our spectrum allocations we are a reserve resource of communications expertise to … Continue reading An Off-Center Fed Sleeve Dipole
A Top Loaded End-Fed Half-Wave Antenna for 20m
Imagine this: a short, vertical antenna for 20m that requires no ground, no counterpoise or radials ... And ... no tuner. Now, let's add that it is only 14 feet tall and can be erected in just a couple of minutes. But wait, there's more: it is very lightweight, slips into a shirt pocket and … Continue reading A Top Loaded End-Fed Half-Wave Antenna for 20m
CLEFHW antenna: Ready for Action
In the last post I introduced a crazy, off-the-wall idea for a variation of the popular End-Fed Half-Wave (EFHW) antenna. I called it the CLEFHW - Coil Loaded End-Fed Half-Wave. Its purpose is to allow backpack portable operation of an electrical half wavelength antenna without the need for a tree or pole to suspend a … Continue reading CLEFHW antenna: Ready for Action
A CLEFHW Antenna?
I have been on a quest recently. My objective: to explore strange new antennas and boldly go where no ham has been before. It is not that I particularly seek out the weird and wonderful; instead I try to adapt existing antenna designs using lateral thinking ("ham radio outside the box") to create variations that … Continue reading A CLEFHW Antenna?
The Weather Outside is Frightful – Time to POTA on?
Winter came suddenly to southern Ontario this year - and it hit hard. The Town of Gravenhurst, at the southern end of the popular summer destination of Muskoka was whacked with more than three feet of snow in a single storm. We manage winter very well in this part of the world, but that sudden … Continue reading The Weather Outside is Frightful – Time to POTA on?
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
“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
Ham Radio Outside the Box 