I'm looking for manuals for the Force 12 EF-140 dipole and Magnum 340 40 meter beams. These are the versions with the 44.5' elements, which is shorter than the current Magnum 340N being sold by the c
I'm looking for info on the coils inside the Force 12 EF-180 80 meter switch box. The only info I have is that it was 10 turns. Anyone know the diameter of the coil ? Thanks and 73, Steve, N2IC _____
I don't know that this will help. It shows a 2x6 switch arrangement. I was thinking it was from K1XM but it is actually from KK1L. Actually, K1XM does have the "Mother of All Antenna Switches": http:
Big problems with that, Jorge. Even if 90 degrees off and I think you won't be positioning them that far off (more like 70 degrees or so?) with only 6 feet of separation (your example used two feet b
Seems to happen less in dry environments like out west etc. I'll accept that. I have had 1 TIC ring up for 20 years, and the other for 10 years. Never had an issue with moisture in the pots. OTOH, li
The aforementioned fire victim was me. The 20 foot steel ends on the guys were of little help when the flames were 100 feet high. The tower was 80 feet, and everything on the tower that wasnt steel w
This has been discussed before, but without a really satisfying answer. Does any one have the brand and product number of a UV resistant wire tie, proven to last many years ? I have used many so-call
Thanks, but for my application they need to be non-conductive. 73, Steve, N2IC On 05/30/2014 09:44 AM, TexasRF@aol.com wrote: Steve, I have found that ties made from ordinary 2 conductor + ground hou
If you are going to do high power AM on 40 meters, then I strongly recommend rebuilding the 402BA, digging a large pit to put it in, and feeding it with high-loss coax. 73, Steve, N2IC I am wanting t
I live in an area with high monsoon thunderstorm activity. I doubt that any of the protection devices would > survive. I disconnect everything where it enters my radio shack. Spencer W1GAK I live nea
The one direction pot failure we ever had, at autopsy, revealed the rotator had been back and forth so many times that the brush riding on the resistance wire torus had completely worn away. What was
If I change to 8mS, about what I had in AZ, indeed the crossover point is now 19 degrees and the 4sq is 5db stronger at say 5 degrees showing what I often saw on LP and very long contacts again in A
Always a thrill to see a TowerTalkian in the news ! http://www.latimes.com/science/sciencenow/la-sci-sn-jpl-radar-heartbeat-finder-20130924-story.html _______________________________________________
YW, included with the ARRL Antenna Book DVD, also handles hairpin match design and optimization. 73, Steve, N2IC _______________________________________________ ______________________________________
I would ask a slightly different question first: Is a 4 square even the right antenna to be using from CX ? What would you work at 135 and 225 degrees ? There are other vertical antenna configuration
An interesting discussion. There is no doubt that the Davis weather stations are excellent and top-of-the-line. You also pay for that quality. I live in a very lightning vulnerable location on a ridg
There is a big design difference between a linear loaded M2 and a High-Q coil loaded OptiBeam with detuning stubs, however I think neither antenna is resonant on 15m. I do not see any issued with the
Modeling guys for example the ARRL AB dimensions for safe lengths ... arent! They couple enough energy, Ive tried a good variance of lengths Funny you should mention this. The next issue of the Nati
I have the DB36 with the dipole option at 91 ft, and an inverted V 80m dipole with the feed point/ apex just below it at 89 feet. The end of the two legs of the inverted v are at approximately 45ft a
I have a EF-180C (86' element lengths) and replaced the linear loading with loading coils, almost exactly the way VE6WZ did his. The coils are located at the fiberglass insulator where the linear loa