I have a tb-3 that has been in the air for almost 30 years now, has outlived several rotors, a bunch of antennas, and a set of guy wires... and I haven't looked at it since I put it up there... it ju
it could be lossy coax, or the dipole could be too close to the ground or some other object that is tuned near the 80m band by accident and is absorbing lots of the power. for instance maybe a rain g
I remember the old timers trick being vinegar and salt to clean copper. Which reaction yields.....water. CO2 gas with sodium acetate precipitate. Al AB2ZY Try combo of vinegar and baking soda...old t
small wire cutters make taking the retainers off easy without scraping the elements. I have a couple of VHF and UHF yagis I'd like to disassemble for moving. They are all through-the-boom, insulated
for only a 6 meter ground plane at 55-60' the rohn 45 would be way overkill. even rohn 25 would be way more than is needed. Hi all, I need to get a rough estimate of what it would cost to install a g
a quick google search found a couple examples. there are probably many more out there for locations where concrete is not available or practical, or where soil conditions or conservation requirements
I have never seen a service manual, but there should be a schematic in the back of the user manual. most likely its the box, but before you send it for repair disconnect the plug and test the motor p
'grounding' in submarines was interesting... NOTHING was connected to the hull as you would expect. in fact, it was a casualty event if leakage to the hull was detected on the power distribution syst
I would go to a place that offers swaging service and deals regularly with aluminum tubing, swaging service is offered by Marmon/Keystone and other tubing suppliers. alternately use a piece of the ne
I have been wary of ordering tubing from McMaster-carr or many of the other industrial places... if you look you will see that they don't specify that the tubing is seamless, it is also not one of th
when you guys refer to 'Gorilla hook" I see something like a big snap hook that I bought under that brand name years ago for rigging and hanging buckets or tools. They would not be legal for fall arr
before I put up my first tower 30 years ago I was warned about just such things in this area. so I called the local base and gave the operations officer my coordinates and told him the tower would be
a common problem was the connections of the loading coils to the tubing. they were originally connected with just a sheetmetal screw, the fix was to take off some of the heatshrink on each end and re
what would a ham be doing on a tower where you could sit or stand in one place for hours?? I have been working on my towers for 30 years now and don't think I have even been in one spot for more than
just remember when you do it to not use the point of an ohm meter probe.... it is not easy to measure bulk material resistivity like in soil or concrete or other types of materials. you need to have
Sorry, I have been busy and trying to ignore the recent threads on lightning and grounding, but this one needs to be debunked... again. "Lots of folks think lightning rods (and other structures such
its not just a matter of inductance, it is also the current flowing in the radial wire is dissipating into the soil as it travels. As a rule of thumb radial wires more than about 50' long don't help
"Tendencies, not absolutes." these are called statistics... there are LOTS of statistics in lightning, from the number of strokes to a given area in an average year, to the distribution of peak curre
" Personally for #3 - I take the strategy that on a ham's budget, we are never going to do a good job at a major strike. I am just going for not exploding the tower base. So I put 3 ground rods in th
Is there a link to be shared for the Canadian document? Patrick NJ5g _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@c