Fred, Depending on your soil, under recommended guy tension your guy post might start to "lean in" after a while. I had 60' of guyed Rohn 45G in service for about 23 years. The guy posts where 8" ID
Actually the Hobby Lobby 100W soldering iron sold for stained glass work does great, and is inexpensive. Just file the flat tip down on each side a bit so it will fit in the grove of a PL259 where th
Your English is much better than my Spanish. 14-foot guying radius is only 46% of 30-feet. Recommended guying radius is typically 80%. At 20-feet up a 14-foot guying radius is 70%. Can the base (roof
For an 80M inverted V with the apex at 90 feet, ends 10 feet above ground, and an inside angle of about 90 degrees, EZNEC+ 6.0.6 calculates -3.47 dBi gain at a 15 degree takeoff angle. Moving the end
Suppose the ends of the 80M inverted V were each raised to 90 feet - the height of the apex of the original inverted V. The apex angle would increase to 180 degrees and the antenna would be a flat-to
With a 90 foot high apex and the ends supported by 35-foor masts, it will be possible to maintain about a 90 degree enclosed angle, a good match, a close-to omni-directional pattern, and increased ga
My 80M loaded vertical is about 10 feet from the closest pine tree. It starts at about 9 feet above ground and runs straight up to 70 feet. In the middle of the vertical element there is a small load
dw, Perhaps you are mistaken. I can only speak for myself, but I look forward to DX contests, especially CW contests, as a great opportunity to work new band / entities. If I operate S&P and show up
After 8 years of dependable service my Alpha 8100 stopped working. I sent it back to Alpha (www.rkrdesignsllc.com <http://www.rkrdesignsllc.com> ). They fixed the problem, installed the latest versio
Tony, At what distance did you compare the 2 antennas. If the doublet is a "flat-top", what do you mean by its "apex"? A 100 foot center fed dipole 30 feet above "average" ground on 20M will have 2 n
Patrick, You might start with a 1:1 "balun" which is a common mode choke. There is no impedance transformation. The purpose of the common mode choke is to prevent the outside of the coax shield from
Going to the horse's mouth: http://www.amphenolrf.com/083-1sp.html PRODUCT SPECIFICATIONS Insulator Material PTFE The drawing below you reference was approved 6-30-2011. http://www.amphenolrf.com/dow
Looks like it is PTFE according to http://www.amphenolrf.com/083-1sp.html OK guys, I am confused. What is the insulation in the Amphenol 83-1SP ? What type of teflon is it ? Bob K6UJ ________________
A few years back I was rebuilding an antenna that had been up since about 1989. Two pieces of telescoping aluminum tubing were corroded together and would not come apart. There was no way I was going
Tim, What band is this happening on? All bands? Just one band? What power level are you running? I'd check out the 4:1 balun. Is it getting hot? Can you open it up and look at the windings? Marsh, KA
Hi Steve, My son James, KB5JXV, has 2 Masters Degrees in Computer Science, worked for several years as a programmer in Silicon Valley, and is currently teaching programming at 2 different colleges. H
Thanks for your comments but way over my non-Windows-programmer head. Way back in the (DOS) day I programmed some in BASIC, QuickBASIC, C, and Assembly. I was fascinated with asynchronous serial comm
Running Windows 10 Pro 64-Bit. I updated to WL 12.11D Friday afternoon and operated in the ARRL 160M CW Contest. WriteLog worked great - no problems. Saturday afternoon I turned the computer on and t
Oops - wrong reflector. (I haven't had my second cup of coffee yet.) Running Windows 10 Pro 64-Bit. I updated to WL 12.11D Friday afternoon and operated in the ARRL 160M CW Contest. WriteLog worked g