Mike, Although 12" thick concrete may seem fairly substantial, concrete has tremendous compressive strength but little in the way of tension or bending strength. I would suggest if this is a plan you
I'm in need of a replacement potientiometer for a Hygain bell style rotator. I believe they have been the same on all the Ham series rotators from Ham-M through Ham IV's. With the Hamvention this wee
A Potentiometer has been located and is on its way to me. Thanks for all those that helped with suggestions and also to those whose time was spent reading my messages....73, -=Rog-K9RB=- I'm in need
About a year or so ago, someone posted a link to a wire rope surplus page, where cut-off pieces of various lengths were listed for purchase. If someone has this link, I'd appreciate it once more. Tha
Jamie, I've found the most reliable rotator connector, by far, is the automotive flat rubber trailer connectors that come with pigtails, which can be soldered, or butt-spliced to the wires after the
When I last purchased the Philystran potted ends for my old style 6700#, the ends were $8.95 each and the resin with hardener was $11.95/quart from Texas Towers. That was in '89, shortly before they
The new Ameritron RCS-10 uses sealed relays. I got one of the first ones and that was only a couple of months ago. It seems to perform very well, as expected, and should outlast the older designs wit
The link in the original message is not correct as shown, as happens many times when it goes through AOL or is created with Netscape and sent through Netscape mail. If you look at the link, you'll se
Have you shimmed this mast in the rotator? The HAM series rotators only run on true center the mast when the mast used is 2-1/16" O.D., anything smaller in O.D. will rotate eccentrically, causing pre
Jon, Top Quality Gin Pole kits can be obtained from www.w9iix.com for about 1/3 the $700 amount you quoted. I'd also be reluctant to recommend a roof mount tower as most people don't install these wi
Almost, but its not quite that easy, Jerry. The mast is generally in the way and must be lifted upwards a bit to allow for room to remove the rotator and/or rotator plate. There is an easy way to do
over. Paul, To meet the criteria for being either crank-up or fold over and self supporting, as well as "quiet", I believe you are limited to the US Tower telescopic mast type tower selection. Fold-
This was posted to ARLI, I don't know how many subscribe, but in spite of the numerous comments against BPL (transmitting wideband internet data over power lines, which will destroy the HF radio spec
Please forward to the lists. ARRL's videos of the US trials can be seen at http://www.arrl.org/tis/info/HTML/plc#video 73, Ed Hare, W1RFI ARRL Lab 225 Main St Newington, CT 06111 Tel: 860-594-0318 In
I wholeheartedly agree, Dino. That would make it far more efficient and far less time consuming for those of us who receive anywhere from 150 to 300 messages per day from 18 different reflectors plus
The Hygain DCU-1 controller allows for this also. It works with any of the CDE/Hygain bell style rotators. It is marketed separately as well as the "Ham V" with rotator and also digital T2X with the
see the documents at the following link; http://www.lightningeliminators.com/technica.htm Lots of proven facts with a stated success record of over 99.7% of eliminating lightning strikes since 1971 w
Hey guys could I tap you vast knowledge to to get some comments on the following. 1. How hard is it to drill chromolly? With good quality high speed drill bits, drill a 1/16" hole first, then slowly
Doc, You'll maybe even get a lobe of circular polarization, straight up, for overhead HF satellite communications! As has been said, "You'll have to model it!" On a serious note, I believe 10 ft. sep