Hello Bob and all, Yes I agree on the issue of needing the stable impedance from the elements to drive the passive systems. I still have some questions in my mind about the radials and here is why. I
It was simply a system designed to find direction over a very wide frequency range. The multitude of elements increased bandwidth, but the physical width in wavelengths is the primary determinant of
Very interesting, In typical fashion our discussion has grown somewhat sideways. My original comment was that I coveted the Wullenwever. I did not say it was a high performance antenna or why I covet
One other consideration on radials above or below ground may be their effect on your receiving antennas. Lee K7TJR _________________ Topband Reflector Archives - http://www.contesting.com/_topband
The 1810.8 carrier is S5 here in the a.m. and is slightly West of North of my QTH in central OR. Lee K7TJR _________________ Topband Reflector Archives - http://www.contesting.com/_topband
Preliminary look says somewhere around N7UA or Camano Island. I cannot remember the ham on Camano Is call. Anybody know either to have them check signal strength? Lee K7TJR I make it about 125 to 130
Thanks Bruce. I already have contacted a couple friends in that area. By QRZ search of course. Lee K7TJR Try a QRZ search on zip code or city & state. Bruce-K1FZ _________________ Topband Reflector A
Tnx Tree, we believe this to be pretty close to the Lynnwood WA area. We have a few more bearings but it will be down to using a mobile setup now I think. It is remarkable to me how accurate some of
OK, we now have a challenge for any hams interested in finding a stray carrier on 1810.8 MHz in the Seattle area. We have narrowed it down we think to an area enclosed by Shoreline Wa, Woodinville Wa
I have been informed that the carrier on 1810.8 KHz has been found. I have been told it was a ham running QRSS where it takes 24 hours to send a CQ. HuH? I do not know the exact location or the party
The primary difference between DXE and Hi-Z 8 circle arrays is the fact that Hi-Z uses ALL 8 verticals actively at the same time where DXE uses only 4 at a direction. Using all 8 verticals allows the
Hi Guys, Excellent point Tom as we will have to disagree on this. I have built both types of arrays here and like the smaller circle with active elements. I believe it has a "cleaner" pattern. You ca
Excellent discussion John and Terry. Interestingly enough if you take the 8 elements in a 200 foot circle you can optimize the peak RDF to nearly 15dB. M.T. Ma in his book outlines his math to optimi
Judging from my own observations and feedback that I get I would say that using a low dipole or horizontal polarity antenna would also depend on what Latitude/Longitude your station is located and ho
Hello Gary, I struggled with this for some time and then one day it occurred to me to simply slant some verticals in Eznec at the angle in question. The only affect in reasonably small angles that I
Greetings Bob, Having BC intermod on 160 meters has been a problem for a many years. It generally occurs from 2 or more of your 9KHz spaced BC signals mixing together and coming out on their spacings
Tree lives in Boring Oregon. I.e. N6TR K7RAT one in same. Lee K7TJR OR N6TR and K7RAT are active in contests, and have great ears. 73, Jim K9YC _________________ Topband Reflector Archives - http://w