My FAA comment was facetious as I am almost 30 miles from the nearest small airports in various directions. Most likely I will be putting a tower up over 100 ft but not over 200 ft. I wonder what the
"Imagine your antennas canceling each other out." Cancellation would not happen in all directions, just some "lobes." Unless of course there were special circumstances such as vertical antennas mount
Technically correct, Hans but where are those constructive interference energies directed ? I think not in any useful directions desired for normal ham use. I suppose I should have made it clear I wa
I have the new style recent manufacture Hy-Tower on top of a metal barn sans radials and sans concrete base. It is a good performer. I have the accessory kits which give you 17M and 160M. It handles
AMEN Robert! As I roof mounted my HT on a 40 year old metal barn that has survived tornado alley its whole life except for the two 14x14 doors being blown off, I chose to give it a 4-way Phillystran
Sea going vessels with aluminum superstructures and welded-on-deck vertical aluminum channels (think channel iron but aluminum instead) for mounting tuners and or antennas with stainless steel fasten
Beeswax is good. Teflon spray that dries well so as to not attract/hold dust and grit is good. You can also use silicone spray (favoring multiple coats.) I prefer not to use anything that will hold o
Small world... I had 1/2 time job while undergrad physics senior. I used a multi channel chart recorder to print out the audio signatures of H bomb blasts from 4000 nautical miles away via undersea p
Ditto, I use a Harbor Freight demo hammer and a home brew insert (to avoid $80 + shipping for store bought AKA COTS.) Works good but in really hard ground takes a while and don't forget the hearing p
I was commenting on 5/8 ground rods. Hard ground and a sledge will bend a 5/8 or 3/4 way too much to continue driving long before it is half in the ground, hence the utility of placing a piece of wat
If anyone is interested in buying a Harbor Freight (inexpensive) demo hammer don't buy the smallest one. They don't carry the one I have anymore but they have a larger one and a smaller one. I have s
Rick, it seems there is no free lunch. I read the specs on all three demo hammers you gave ID numbers for and although any of the three "might" work in some situations only a trial will tell. Compari
I too acquired a (probable) Rohn tower, part of one anyway. Triangular configuration, 4 inch tubular legs with 1/4 inch wall thickness. It is 20 ft sections connected by bolting together welded-on fl
Richard, It isn't an issue of what you can get away with and not be prosecuted. The protest was based on civility and pedagogical considerations. The original protest was based on the protester's per
I'd love to hear from folks who raise and lower crank-ups remotely without problems as I aspire to be able to do that with two upcoming tower installs. As regards coax getting blown by wind into the
Jim and Steve, Thank you gentlemen. One gets all kinds of advice and much misinformation from the community at large but this forum seems a cut above. I appreciate getting reasonable answers to my qu
Yet another fine idea. Thanks Gary. Patrick AF5CK With respect to your comment regarding: If the coax were run through a weather/UV resistant sleeve of sufficient diameter... I found Non-Metallic Con
Lots of assumptions are made doing things like this. Sometimes relatively reasonable assumptions only colored a bit by economic considerations result in disaster. Winter of 1960-61 Cqprock New Mexico
My #1 tower location is not visible from my shack. It is located well away from the edge of my lot (1/2 mile by 1/2 mile or 25 or so city blocks of space) The base of the triangular section of the to
During a period of the successive evolutionary improvements of the design of arches in ancient Rome it was the custom that the architect/engineer would stand under the arch as the scaffold was remove