How would you approach this if the outside tube already has a slot cut in for hose clamp use? Or, should we assume that if a slot is already in the outside element, that this method is not an option?
If you are considering reworking a 40-2CD, there are a couple things I would recommend since I have been through this sometime ago. Inspection showed that every loading coil had corrosion on the scre
I had many a HyGain trap fail. They don't slowly get worse, they immediately arc and the SWR changes instantly. All of my failures appear to have been grass, or spider nests in the trap. Bypass the b
I've been saying this for years. It is a Win-Win! Use a pier pin or a roof top base for guyed towers. Less expensive and easier to handle. And, you can always change towers types without being tied t
A friend of mine was using a 24VDC power supply of mine that was sitting on the floor of the upper story of their garage where his station was. It was damaged, (I don't know the extent since he repla
I obtained a used Tennadyne Model T8 for my short tower and am getting ready to put it back together. The instructions state that I should not use ANTI-OXIDE grease; in bold letters. Instead they rec
I'm looking for suggestions on coax routing. I've got the Tennadyne log antenna almost ready to go up. I have 12 turns of coax at the feed point for a choke and the coax connects at the end of the bo
ty-wraps to last long enough. So, I used SS worm-type hose clamps. I was very careful to make them only a *little bit* snug, lest I crush the cabling. I figure these will last longer than the cable.
Continuing the discussion on how to attach the coax to the hot boom of a Tennadyne T8 antenna. As I assembled this antenna, I became increasingly confused and concerned about the feed system. With th
characteristic impedance of something like 300 ohms, and a spacing of several inches. The feedline should drop down vertically from its attachment point to the two booms and then turn and run parall
foot below the booms back to the mast and then down to ground? Rick, yes. Mechanically I'll need to figure out how to attach fiberglass drop poles to the boom and coax that will last as the end of m
Don, I have a TH6DXX that is very old now. 30+ years and I am the second owner. I also have another that is in the barn that was up for 26 years. I rebuilt both of them before putting them up. To do
Do they still make the mast dampeners that take up the shock of stopping quickly. Kind of motor mount on a car except it goes between two pieces of mast pipe. Jim - KR9U _____________________________
Here's the thing about synthetic oils. The molecules in DINO (conventional old style without the zinc additive) oil vary all over the place in size. In synthetic oil, they are all very close in size.
So, if I removed the output connector on my amplifier and wired the coax directly to the output relay inside, does the coax now become part of the amplifier? Jim - KR9U provides no standard for measu
That tower is what we call around here, Mr Wiggs tower. It was sold by the Mr. Wiggs chain store. Some have speculated that it is a product of American Tower, but I have nothing to back that up. If g
Having worked in screen rooms, I can say that it doesn't take much of an opening whether it is a door or a slot opening between the walls to allow leakage of stray signals from the AM band. If I were
Can someone explain to me why THHN with insulation has the loss that is seen? If it becomes resistive, does it somehow inhibit radiation and does it result in heat in the radiation? If it only become
This was Array Solutions response to this on the AMPS reflector. What your missing Jim is this is a Balun for the band below 10m 8o) [Ed Note: 11 meters] Where the real ampllifiers are used. We sell
This is interesting for me since I've had multiple troubles with CATV hardline center conductors eaten away. On this particular antenna run, I am using an old Heathkit antenna switch with over-the-co