Is this too high Hans? There is a popular old saying about a man with one clock always knowing what time it is, but a man with two clocks is never sure. Well doesn't that also apply to voltmeters and any other kind of meter in a ham's kit bag? The Ham Radio Outside the … Continue reading A Ham with One Voltmeter Always Knows the Battery Voltage
Category: Miscellaneous topics
A Simple Antenna that is Omnidirectional, Directional and NVIS?
Our winter weather may have a few weeks to run yet, but a relatively warm spell gave me the opportunity to get out into the Big Blue Sky Shack to try out another antenna idea. Destination: MacGregor Point Provincial Park on the Ontario shore of mighty Lake Huron. The shore ice still stretched quite a … Continue reading A Simple Antenna that is Omnidirectional, Directional and NVIS?
An End-Fed Half Wave Antenna – with no impedance transformer?
One of the great benefits of being a ham radio blogger is that it opens up a new door to learning. Through that door comes valuable input from readers of Ham Radio Outside the Box. Let me state one thing very clearly: I am not an expert; the intent of this blog is to report … Continue reading An End-Fed Half Wave Antenna – with no impedance transformer?
A Quick and Easy QRP Emergency Field Antenna
I once drove to a park about 45 minutes away from home to do a POTA activation then realized I had left my antenna at home. <<Panic>>. I improvised by digging a 33ft wire out of my pack, cutting it in half and hastily erecting a V-dipole with its ends only about 10ft above the … Continue reading A Quick and Easy QRP Emergency Field Antenna
A Universal Unun? Not so fast!
I have been reading a lot from the "Ban all End-Feds" brigade lately. The animosity towards feeding a wire antenna at one of its ends approaches supernova intensity at times. Some of the opinions expressed are perfectly valid, true and backed up with sound science and math. But some of the denizens of end-fed doom … Continue reading A Universal Unun? Not so fast!
Are You a Rag Chewer or a “59 73” Operator?
I have had this topic in mind for quite a long time but have hesitated to write about it. Why? Because it is probably one of the most controversial topics in amateur radio. However, at the risk of causing a heated debate, and because I am still snowed in and unable to get out to … Continue reading Are You a Rag Chewer or a “59 73” Operator?
Fighting the winter blues with a little radio therapy
The winter takes it all - aka A Brief Break Activity We haven't had this much winter snow for several years. Every day seems to bring a fresh snowfall to add to the accumulation on the ground. My poor John Deere snowblower is getting a real workout keeping the driveway clear. I live on the … Continue reading Fighting the winter blues with a little radio therapy
How to Really Make the QMX Ready for the Big Blue Sky Shack
The QRP Labs QMX is a wonder of modern technology. By employing an SDR hardware platform a whole plethora of features can be made available by simply installing new firmware. I absolutely love my QMX. It has become my most used radio for field operations. I grumbled into my beer glass about the long wait … Continue reading How to Really Make the QMX Ready for the Big Blue Sky Shack
How Can A Lossy Wire on the Ground Work Better Than A Quarter Wave Vertical Antenna?
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?
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
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