I had the same experience with the military surplus stuff. Tried painting it with hardware store spray paint and that helped some. I use it for light duty microwave antennas, etc but I would be reluc
Common household vinegar will do it also. You must soak the end to be cleaned overnight. K4TO _______________________________________________ _______________________________________________ TowerTalk
Several of you have emailed me privately about modeling the Moxon 2 Element 40M yagi. I am at the start of a project to build two of them using parts from one Telrex 6 element 20M yagi (20M646). Firs
I had Telrex antennas up for many years. Once, I saw some large bird sitting on the the boom of the 15 meter antenna at 85 feet. I looked again and noticed that the talons went all the was around the
I have a dipole 4 square array strung around my 150 foot elevated 160M ground plane. The newer Comtek phasing boxes are built for ONLY quarter wave vertical arrays. My Comtek box is a really old one
I am attempting to model the W6NL two element Moxon yagi for 40 meters. I have a working file. It runs and gives perfect results. The software I am using is the Antenna Model program. I selected it b
I have spent the morning working on a 40M dipole made from leftover Telrex parts. I took careful measurements of the lengths and diameters of tubing entered the dimensions into Antenna Model. The 1.5
Thanks for all the suggestions on the RF choke. I read the article by K9YC and concluded that the best approach wold be to wind RG8X around 6 Fair-Rite toroids made from type 31 material and 2.4 inch
Well regarding the bonding of the coax shield at the top and bottom of the tower Im having a hard time understanding this. If the shield of the coax is connected to the top of the tower(or at the poi
This thread has been very educational for me. thanks to all who are contributing. To my credit, I realized that the rf choke acts to isolate the dipole from the tower leg as I lay in bed last night.
Yesterday, my good friend, N4TY, and I finished putting up my Rohn 55 rotating tower, 155 feet. Today(3 hours ago) I finished going around a checking all the turnbuckles. Every one had jam nuts on bo
Good morning all, Saturday, with N4TY on the tower and me on the ground, we got my Rohn 55 topped off at 155 feet. All is looking good. I took a little time last night on the bench and put connectors
Just cut up an aluminum coke can. I used that for years without problems. K4TO _______________________________________________ _______________________________________________ TowerTalk mailing list T
I just put up a 40 meter rotary dipole using leftover Telrex elements. The center of the element is 1.625 O.D with a section of 1.5 O.D. tubing inside. I had a friend turn down an Oak piece to 1.375
I use a pair of Bao Feng radios on 440 MHz. Im not sure you want vox. Sometimes the technical language has to be used in order to get things to work properly. We picked a simplex frequency off the be
The Rig Expert AA-600 has TDR capabilities. I dont know about the other, lower frequency range models. K4TO _______________________________________________ ___________________________________________
Reading from my Rohn Engineering Manual,: House brackets must be used and must be mounted at least 12 feet above ground to be effective. #25 tower should not extend more than 33 feet above the bracke
Well FWIW I am scared to death of crankups and folders. I owned a Rohn 45 foldover and have extensive experience working on crankups. Each has its own set of hazzards. Give me a good, honest standup
For an electronic hobby, amateur radio involves an amazing amount of mechanical engineering! Also, after my XYL saw the back of my operating table after it was pulled out from the wall, her remark wa