Category: Winter

What really determines the efficiency of an antenna?

Is it Standing Wave Ratio (SWR)? It is common knowledge that when an antenna has high SWR some of our transmitted power is wasted instead of being transmitted. But is this really true? The trouble with "common knowledge" is that it spreads without further scrutiny. "It must be true because that's what everybody thinks". But … Continue reading What really determines the efficiency of an antenna? →

POTA PERformer radials – can we make a compromise?

There has only been one light snowfall in southern Ontario so far this season - just a few centimeters that melted away within a couple of days. In anticipation of upcoming heavier snowfalls and a semi-permanent white blanket that will last until spring, I bravely shrugged off the chilly outside air and set up my … Continue reading POTA PERformer radials – can we make a compromise? →

A simple outside the box fix for a broken telescopic whip

"If it ain't broke, don't fix it" Or conversely, if it is "broke" you have two choices. Order a replacement from the other side of the planet, and wait for the slow boat from China to navigate thousand of nautical miles across the stormy waters of international seas. Or, alternatively, and my preferred solution, is … Continue reading A simple outside the box fix for a broken telescopic whip →

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 →

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 →