On Aug 24, 2004, at 3:40 PM, Tower (K8RI) wrote: I've had 40 and 50 foot towers that had a tribander, or monobander on top, used dirt bases, 1/8" guy lines hooked to 8' fence posts that withstood ove
On Aug 25, 2004, at 12:44 AM, Tower (K8RI) wrote: Not really. OTOH all tower installations depend on luck to some extent no matter how well engineered. Only to the extent that the actual weather cond
On Aug 25, 2004, at 3:23 PM, Steve Forst wrote: What is the best way to run 450 ohm ladder line through a block/stucco wall, where the stucco has steel mesh behind it? There is no wood, vinyl, or win
On Sep 7, 2004, at 7:29 PM, roy.thistle@utoronto.ca wrote: I am installing a 40 foot tower. It will not be self supporting. It will be bracketed to the roof/wall, and I will use guy wires. Depending
On Sep 9, 2004, at 11:38 PM, Steve Forst wrote: Tried running ladder line into the shack, but too much RFI. Most sellers of remote baluns offer 4:1 baluns for connection between coax from the tuner a
In the October 2004 QST, on page 52, there's a rather disturbing picture. It shows three hams on a tower. Ostensibly, they are installing a 2m antenna at a hospital as part of an Eagle Scout project.
I received a reply from Steve Ford, WB8IMY, who is the editor of QST. He assured me that all three gentlemen were wearing climbing belts, although they are not visible in the picture. On Oct 12, 2004
On Sep 29, 2004, at 10:52 PM, W7TMT wrote: I'm just finishing up refurbishing a 12 year old A3S and adding the 40 Meter kit that's been languishing in the basement for a long time. After researching
On Nov 16, 2004, at 3:46 PM, asciibaron@comcast.net wrote: i tried to disassemble the driven element traps on my A3 lastnight, but feared breaking the black trap cap. how does one remove the trap cov
On Dec 26, 2004, at 5:40 AM, Juhani Viitala wrote: Has anyone experience to improve the output of Heathkit HD-1250 grid dip meter? I've had very little luck trying to use my HD-1250 dipper. (Technica
On Dec 8, 2004, at 2:12 PM, James Brennan wrote: I am looking for some engineering specs forRohnn 25g tower. I need the base diagram and wind load ratings that are the most up to date. I need to show
On Sep 25, 2004, at 8:57 PM, Tower (K8RI) wrote: Any one have experience with "half slopers"? (half of a half wave with the tower serving as the other side) I have a half-sloper for 40m coming off my
I am shunt feeding my 15m high tower on 80m. I recently added more 60 foot ground-mouted radials to go from 13 to 24 total radials. Because the tower is situated at the corner of my house, the radial
On Jan 5, 2005, at 11:50 AM, Red wrote: EZNEC modeling indicates a very slight assymetry and reduction of gain resulting from omitting 90 degrees segment of the radials. Both figures are within the i
On Jan 5, 2005, at 7:55 PM, Jim Lux wrote: The error in the model is probably a lot bigger, as Red said. Upshot is, don't trust the 1.1dB number. You could have 1 dB more gain, or 1 dB less gain, or
On Jan 6, 2005, at 1:56 PM, Keith Dutson wrote: Only the driven element may be taken apart without removing rivets. However, removing and replacing rivets is really easy. Just use a cordless drill to
On Jan 9, 2005, at 4:34 PM, Josh wrote: Hello all, My Ham II rotor went south today... literally. I was operating as usual when I release the break to turn the rotor, it turned itself south. Now it w
On Jan 19, 2005, at 12:02 AM, Skip Prinsen W1NNI wrote: Where can I get replacement screws for mounting my ham M-IV rotor to a rotor plate? I went to the local Home Depot. I found stainless screws fo
On Feb 1, 2005, at 2:10 PM, Keith Dutson wrote: Stainless steel threads have a tendency to gall, especially if the bolt is over-torqued. Once this happens, the bolt will not reverse and the head usua
On Jan 11, 2005, at 2:48 PM, Lee Buller wrote: What has been the collective experience of those of you who have ice where you live as to what it takes to bring down Rohn 25G? Luckily we did not have