I would appreciate hearing from anyone who has added a small yagi to the top of one of the mid sections of a crankup--say at the ~35-40' level. In particular to the interim TRIEX LM470 (built by Para
for John W. Brosnahan What effect would the rf resistance of stainless steel wire radials have? k7puc ________________________________________________________________________ Where do you get ICE ba
Because my three position coax switch (MFJ 1702B a/b/open) became a bit erratically open, I took it apart and am dismayed at what I see. First, It has a nice cam action that holds the open opposite i
It worked well for me (Olympia, wa to Wash dc) for both entering by city or lat/long. Also agrees with another source. k7puc List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems, Try
the OK, I will ask the question that wasn't asked but got responses because the responses were very interesting and applicable to my situation. Just a few hours ago, UPS delivered a TENTEC 238a 2000
multi station. What qualifies as a multi multi multi station? k7puc List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems, Trylon Titan towers, coax, hardline and more. Also check ou
lot. FWIW My MFJ 249 analyzer draws 180 ma when connected to ext source, which it always is! k7puc List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems, Trylon Titan towers, coax, ha
A local wireless telephone company is interested in leasing a patch of my property to install a 70' wireless tower. As this lease would pay ~$1000/ month which would add greatly to my retirement inco
-- Original Message -- > So... what books would you recommend? > Assuming that you have a computer, I would strongly recommend an antenna modeling program. The only one that I am familiar with is EZN
marked is at called Am I correct? Because of the open circuit (usually) at the far end of the antenna, the current must be zero throughout a cycle. If this is true, it seems to make sense to begin a
them a others While these "shotgun" approaches may alleviate the reception problem, it would be of interest to learn what the signal source is that causes the noise. k7puc List Sponsored by AN Wirel
For those interested in this thread, but unaware of what has been published already: ARRL 6 Antenna Compendiums with each over 200 pages. RSGB Practical Wire Antennas " HF Antenna Collection Much of
with pull. 1,000# A questions for the physics experts -- Is it true that in order to pull up the 1000# load that the pull will have to be 1000# plus the amount to overcome the loss due to the pulley
http://www.anwireless.com List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems, Trylon Titan towers, coax, hardline and more. Also check out our self supporting towers up to 96 feet
I have been trying to answer this question for 56 years - my first Sweepstakes contest. And always as a little pistol or popgun! k7puc List Sponsored by AN Wireless: AN Wireless handles Rohn tower s
Here in the Pacific Northwest, where the skies are cloudy all day, I use different method to measure tree height (after I shoot a string over the top of the tree). I measure the length of the string
Is there a reflector/forum somewhere for antenna modeling? k7puc List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems, Trylon Titan towers, coax, hardline and more. Also check out o
My EZNEC modeling of various 80m horiz wire dipoles at low heights (say 50') shows that the ends can be snaked around just about anywhere without hardly effecting the patterns. Apex at 50' puts the a
One day an "old-timer" touched a small neon? bulb to one balanced line output post of my MFJ948 tuner and then touched to the other output post. There was a difference in brightness. Is this a useful
A very good book is "AC Power Interference Manual" by Marv Loftness (kb7kk) for locating source of power-line and Electrical Interference" k7puc but List Sponsor: Are you thinking about installing a