"On4un writes that many stations find elevated radials to be a few db below ground radials. I believe this is ground dependent. Later I loaded 100ft tower with 32 radials while still having the first
At that time I also measured a Morgan... Is Morgan still operating? I inquired about some filters a few months ago, they showed the wrong products on the wrong pages, and lacked data/sweeps for some,
Sometime back in the summer of '21, I also checked out the Morgan site and it was somewhat the same as you saw. However, when I checked in the Oct/Nov time frame, they seemed to have cleaned it up a
It was probably October, or November when I first came across a filter I was looking for. Specs were a bit scrambled, the description was one thing, photo another, no sweeps. I e-mailed them at the
If you can't break up the shale and remove it then why not use it as the anchor? Bore some holes in it, epoxy in some rebar and cast that in concrete or epoxy in some anchor bolts and bolt in the gu
A good test, strictly at 2.45 GHz, and, the clamp is the only load in existence, relative to the RF source. Test at actual operating frequency, conditions (antenna, frequency, atmosphere, relative ph
The Joe Hams of this world . . . where currently 60% of them seem to be quite happy with an EFHW antenna, 30% with an EFRW (Random Wire) antenna, and 10% understand antenna technology. Is this anywhe
band....typ resonates around 40 mhz. probably achieve > 50 uh, and still not series resonate on 20-10m. Something I've always wondered, what is the "rule of thumb" for calculating such a choke to pu
Check regional sporting goods stores for braided climbing rope, sold by diameter, and length, by the foot, or in hanks, and recently, I bought "arborist rope" for working with trees, here are some ex
Twenty years ago, the saying in pro audio was, "$200 for a box, $210 if you want it to do something." Add 20 years worth of inflation. When I was prototyping broadband service gateways ~20 years ago
I think some of it could be used as a radiator. Opinions / comments please That's what I do. I'll send some pics direct. Kurt _______________________________________________ _________________________
"and the angle between the dipole legs may be less than desirable." I ran into this. I had an inverted V design, that would allow me to switch between N-S, and E-W. Mid-stream, I doubled the height o
Phillystran turned that into a much better antenna. I suspect that making sections of guy resonant on one of the bands could have some unexpected effects on other antennas on the tower. Or, it might
hot water (or a gentle heat gun) to soften the plastic a bit? I've used that technique when removing thick insulation from large gauge wire. I've used a heat gun (watch the heat!), and a hooked knife
"Adding to the question, are there any that do NOT transmit in the 440 vicinity? My YL bought me a wireless wx station and I had to return it, as it sent data bursts every few seconds that tore up m
I must admit, I got lazy a few decades ago, and started to look at the insulated/uninsulated velocity factor, and relative permittivity charts in the radio handbooks, figuring everyone else after a f
Those can scorch the cable/wire insulation you are trying to solder. (That propane flame has to go somewhere.) There used to be models that had a flame chamber filled with metal mesh, more of a catal
I may be crazy here, but, am I the only one that remembers using, and all the drawings in all the books of using, a meter to measure voltage, or current, along an antenna, starting at the feed-point,
I don't see how it is possible for the angles to be the same Draw a vertical line representing your tower. Now, draw lines from the vertical line outward, at a 45 degree angle, even some at 22.5 if y
Further to a recent topic that provoked significant discussion a couple weeks back... I'd been meaning to follow up on this. I was digging around the shop looking for the meter I used to use to measu