<http://foro.ea1ddo.es/> Jim, I appreciatted your point of view. Do you think RG402 is good to build chokes at HF on FT240's ? Thank you 73, Maximo ________________________________ De: TowerTalk <tow
Here you can see both, RG400 (FT240-31) and RG402 (FT240-43); https://i.ibb.co/hKvbfVb/IMG-20200819-174706.jpg To place it in an enclosure, wound with basic care... seems a good alternative. 73, Maxi
I think it was a good thread as we always learn something. Got some private emails with further interesting details. Discovered RG401, which was out of my radar too. Thank you specially to Byron, Jim
<http://foro.ea1ddo.es/> Antenna Optimizers available for ham radio, basically 4NEC2, Mmana and AutoEZ, are tools, calculators, to save us some time, but you still need to know what to do. Those opti
You need to use a solid non-conductive wire support, for the structutal forces, then solder the wire with no tension at all. That is same as a "dipole-center" item. A simple plastic piece, with some
There are different quality grades on hot dipped galvanizing. Those quality grades are basically the size of the zinc layer. For hard enviroment areas, galvanizing is thicker. For extra protection, a
John, What type of paint you used? Have you tried urethane aliphatic enamel? 73, Maximo EA1DDO Correct on the paint, Máximo. I painted my P4 Rohn 55G tower often. In theory the hot dipped galvanizing
I don´t think that type of paint is the correct for this task. I would suggest to ask for "urethane aliphatic enamel", in two-components (base and hardener, to mix before to use it). You can select t
I think so. Brite-Zinc seems to me like an anti-rust paint, for protection. Usually on steel. Urethane aliphatic enamel is a synthetic cover to give an extra protection layer on the top of the zinc.
Rich, it's difficult to get everything. When you install a tower, paint it, etc. usually you are not thinking on disasembly it again. Said that, it is paint, not welding. I can't say for sure, but I
I can see Rust-Oleum sells Urethane Aliphatic enamel: https://www.rustoleum.com/product-catalog/industrial-brands/commercial/urethane-coatings/3300-system-acrylic-aliphatic-urethane-coating 73, Maxim
Hi Paul, I can provide you a high performance diagram for a 80m vertical antenna. It is based on a 12m spiderbeam pole (fibreglass). Next document contains the details. Apologies, it is in spanish, b
Dan, Thank you for the heads up. 73, Maximo EA1DDO ________________________________ De: TowerTalk <towertalk-bounces@contesting.com> en nombre de Dan Maguire <danac6la@gmail.com> Enviado: jueves, 27
4O3A https://4o3a.com <http://foro.ea1ddo.es/> ________________________________ De: TowerTalk <towertalk-bounces@contesting.com> en nombre de john nistico <electric911inc@hotmail.com> Enviado: miérco
If the vertical is monoband, you can use a 1/4 coax stub, with closed far end, connected to ground/earth. 73, Maximo EA1DDO <http://foro.ea1ddo.es/> ________________________________ De: TowerTalk <to
Hi John, I guess it wouldn´t be good for your current project, but I share an interlaced 15m/20m Quad design: Original text: http://www.ea1ddo.es/Quad_Bibanda.php English translation: https://www-ea1
I use Iroda Solder Pro 120. Very good, even with wind. It has a good power capacity, for thick cables. Works as torch too. https://pro-iroda.com/products/butane-soldering-irons/pro-120/ 73, Maximo <h
A shop where I use to buy is The Wireman: https://thewireman.com Good quality toroids, coax cable, kits, tools, etc. Press N8UG passed away but his family continue his legacy. 73, Maximo <http://foro
I bought several of them in past times. There are 50 beads and a piece of RG142. Everyone will tell you a different story. As Jim commented, at present days, a choke based in toroid seems better opti
MyAntennas.com has top quality baluns, IMO better than Balun Designs. https://myantennas.com/wp/ 73, Maximo --Original Message-- From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf