I was wondering if someone has experience with a 43 foot vertical, mounted on top of a tower. I used one before on top of my roof, but that one was supported with simple guy wires. Needless to say th
Can you tell me more about the pseudo-Brewster angel? I know what a Brewster angel is but don't know any problems with it for elevated verticals. A good link would be appreciated. Hans - N2JFS Not a
I took some photos of my attempts to connect a PL-259 to "the common" 1/2 " hardline. The simple way is to use a 1/2 " compression union coupling but I also used a 1/2 " flare union coupling. That re
The compression coupling costs ~$8/pcs (Lower and Home Depot) and the flare coupling about the same, but is used for two attachments. I payed $1 for the PL-259 so the total cost for me was $5 per cou
"My" attachment is geared for the 75 ohms, cable TV cable with a 1/2" shield diameter. The whole cable has a 5/8" outside diameter You can probably use something similar but with a different diameter
No, this is a 75 ohms cable TV cable. It has a 1/2 " outside diameter shield. Hans - N2JFS What sort of hardline was that, anyhow? It sure didn't look like Heliax LDF4-50 73, Pete N4ZR Check out the
As you can see, I used that too. The "disadvantage" with that is that you can only use the compression coupling once. If you need to remove the connector from the cable you need to buy a new compress
Hi, Just added some more, and hopefully, explaining pictures. http://www.facebook.com/media/set/?set=a.10152183316018539.483422.579753538&type=1&l=b1cad3f418 I connected them to a ~400 feet hardline.
I would consider a "single ground connection" solution. Instead of trying to get "a good ground connection" set an imaginary point as the "ground" and connect everything, that needs to be grounded to
Does anyone have a good idea of minimum bending radius for the 1/2 inch cable TV hardline? I have been told anything from 5" to 50". I believe 5" is way too sharp but 50"??? I sure that 50" would not
Does anyone have a good idea of minimum bending radius for the 1/2 inch cable TV hardline? I have been told anything from 5" to 50". I believe 5" is way too sharp but 50"??? I sure that 50" would not
I understand that the bending radius is a lot less if the cable is braided or corrugated. Well, the cable I have is neither. The shield is an aluminum "tube" with no corrugation or anything else to a
Hi Jim, No, I don't have a part number. I purchased a roll (of 442 feet) at an antique auction for $1. Nobody know what it was. As it couldn't be used as a water pipe most people found it useless. :-
Thank you. Just what the doctor ordered. Yes, that's what the cable look like and I can only assume it is the same. Minimum bending radius 6". Time to build the bending fixture. 73 de, Hans - N2JFS h
Yes, unless you are not going to use it for anything. It is "attractive" for lightning strikes and any strike will "lift it up" several kilovolts, maybe even megavolts if it is not grounded. Anything
No, MYLAR does NOT conduct. It's an excellent dielectric. Metalized MYLAR on the other end conduct, the metalization that is. Hans - N2JFS Remember that mylar conducts electricity and may affect your
Anecdote or not. If you push enough current though any conductor it will "explode". (This is actually use in one type of detonators.) I don't know how much current required to crack concrete and if a
Do not use zener diodes across the input. They have a high capacitance, which would degrade the signal. Using "small signal" diodes would be OK but you may experience a degradation due to IMD. Better
Use a 48 foot glass-fiber contraption, consisting of a number of 5 foot sections. I think they were intended to be tent poles and not a 48 foot pole. Have successfully raised that using two guy point
Jim, I secure the bottom of the pole, I'm going to rise, with two (or three if it's heavy) screw anchors normally used to hold dogs and horses. I put they around the bottom and attach them to the pol