As the current in each radial is small, even at legal max power, you can use insulated #18 which is available on very large spools at ebay. Last spool I bought had 15,000+ feet for less than $20 SHIP
I've done just that using fiberglass rod to insulate the tower from the base. The rod is available in all diameters, so you should be able to find the right size. Just drill holes through the rod tha
Sounds like the Drake remote switch. Not sure of the model number/designation nor where you could find a manual, but Drake made a few of those before they went belly-up. Don N8DE ____________________
You guys are all kids. ... heck, I was licensed before most of you were born! Celebrated 51 years .... of Ham Radio ... this year! Now to put up, this Spring, the 6 towers lying in the yard ... and t
I have the instruction manual, but no way to copy it. The dimensions are as follows: Ref: 24' 2.5" space: 6' 9.25" DE: 22' 7.5" space: 4' 10.5" D1: 21' 6.5" space: 5' 3.25" D2: 21' 2" space: 8' 1" D3
Jose, I suggest you keep the KLM exactly as it is.... very broadband and excellent f/b with good gain. You won't approximate the f/b and broadbandedness with a single driven element. Just my 2 kopeks
Being in the Northern Hemisphere makes it quite easy to do at night IF the sky is clear. Find Polaris .. the North Star. Stand so you can sight Polaris THROUGH your tower. You will be standing due SO
Purchase a long, round file that you can mount in a hand-held drill/driver. Use it gently to remove the crud. Then .. use NoAlOx or some other anti-oxidant between the element pieces. Good Luck Don N
5.5 square feet? Do you mean CUBIC feet? If so, that is definitely NOT enough concrete. 5.5 Cubic YARDS makes more sense to me, as my Universal towers ALL have from 4 to 6 Cubic YARDS of concrete bel
Some thoughts on this: Do you have a basement? How about vents in the basement walls? You could replace a vent with a panel that has feed-throughs for coax and control lines. You can then run the lin
No .. you should receive TWO copies of this reply due to the fact that I hit "Reply All". Don N8DE _______________________________________________ _______________________________________________ Towe
Eric, As an owner of 5 Universal towers, let me try to help. First, do NOT use the B-22 base if you intend to go higher than 40' at some future time. Use the B-26 base with 23-40 tower composed of 26
Turbo encabulator? Haven't heard that since I worked with Chuck Summers [GE .. later Los Alamos engineer] many years ago! I still have the original printout on tissue paper. Brings back many good mem
Tom, Why not put the three verticals in a right triangle. You can remotely switch the phasing using voltage over the coax so it will beam four compass directions. Mine were [and will be soon] phased
The 'right triangle' system utilizes two verticals per selected direction with the third 'floating'. The 'equilateral triangle' system uses all three verticals simultaneously, but requires much more
Comments inserted below: Most practical? It requires separate control line for .2db additional in any one direction, but narrows the beamwidth [with reference to 1/2-power points] to do this, making
And for me. Don N8DE _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailma
Contact your local concrete company and ask them for their recommendation. Don't use what you can buy cheapest .. or what some other ham recommends, as you may need the written recommendation of the
It was used for remote switching of a phased array of verticals [3 of them] much like what I have used over the past 25+ years. BTW ... the first time an APC-1 box was modified so switching could be