Hi, I used Davis Buryflex (RG213) on my 15 M yagis (they were put up in 1999) and I was replacing some connectors today when I noticed something disturbing. On the PL259's on 3 of my 4 yagis;, there
Hi, I want to thank everyone for their responses, photos, insight and suggestions which were overwhelming in number and with loads of excellent information - It was Like drinking from a firehose! Tha
Steve, You might want to consider another possible solution.... I don't know how much wire is involved - but the entire length of EHS did not stretch - I would cut off maybe 15' or so on either side
Before I bought the house at my present qth (which has HV lines cross my driveway near the street ~ 550' from my house), I made a dipole and brought my radio up to the qth and listened on the dipole
Hi Ignacy, In 2011 I had a failure of my ACB-80, 16 years after I bought it (1995). I sent it back to Comtek for repair, paid for the repair and received it back. Unfortunately I was extremely ill at
Hi John, I have two Rohn 45 towers (130' and 100') and four rotatable sidemounts (swinging gates) on the 100' tower which holds four Hygain HG105CA and four HG155CA yagis. These are turned with T2X a
I can see how the vectors might cancel out if you have two identical antennas mounted the exact same way and pointed in the same direction on either side of the mast but ONLY with a wind blowing STRA
It's been assaulting New England for many years now despite our climate. It is mind-boggling how fast it grown in any kind of weather (drought is irrelevant - it grows almost as fast, and the thickne
There was a big problem in 2011 when Copper futures first approached $5 / lb and retail prices approached $10/ lb. Thefts of copper plumbing from commercial buildings and vacant apartment buildings a
There should be another part to this discussion that I have not yet seen mentioned. Coefficient of Thermal Expansion. If the connectors are water tight/air tight, then in theory no taping of connecto
There should be another part to this discussion that I have not yet seen mentioned. Coefficient of Thermal Expansion. If the connectors are water tight/air tight, then in theory no taping of connecto
Pete, Water inside of any cable is an issue - at a minimum it means that the there exists the possibility of a hole or holes in the outer jacket of the cable. Has your tower been hit by lightning? A
One antenna that does work well even over poor ground is a 4-square with elevated radials, preferably above .05 wavelength in height. In my case I changed to a different design - instead of orienting
Jim, I mentioned "one antenna that does work well even over poor ground", not the best antenna overall. And it does work very well - enough to let me work 39 zones and 300+ countries on 80 not to men
John, See my post to Jim which describes the land on my qth. I assure you that the "ground" is not better than I think, but the hilltop undoubtedly helps in some directions. The beamwidth is decent f
I have interspersed some comments below.... On 2024-07-24 22:07, Jim Brown wrote: On 7/24/2024 4:13 PM, kq2m@kq2m.com wrote: I mentioned "one antenna that does work well even over poor ground", not t
A huge issue with using a coarse tool like a Soil Conductivity map is that the worst and best terrain for Soil Conductivity are but a tiny % areawise and may not even be noticeable on a large scale m
Hi Bill, I would approach dropping your tower the same way that I would approach chainsawing down an extremely heavy, very tall tree. 1) First I would carefully assess the direction of the "lean" of
Hi Bill, One other thought..... Before you bring anything down, I would climb to about 10' below the top set of guys (I'm assuming that you have them at either 120' or 130'), and attach a very heavy
Hi Tony, I have not used a K7NV mast clamp so I can't speak to it's performance. But I have been using an Orion 2800 on my top 20 - 5L LJ105CA on a 35' boom at 130' for the past 15 years. In all that