If it hasn't already been mentioned, here's something to watch: https://www.youtube.com/watch?v=fyZR9uMBnIo all about receive antennas. about an hour in W3LPL gets into more detail about high and low Z circle arrays. I'm definitely thinking about this on a neighbour's land.
David G3UNA/G6CP > On 30 July 2019 at 08:34 terry burge <k...@comcast.net> wrote: > > > Hi again folks, > > > Got some great advice from several others. 'Shared Apex'; KD9SV > bi-directional beverage recommended; K9AY (guess I need to get busy and > finish mine); Hi-Z 8 along with Waller-Flag at 95' head and shoulders above > others (but expensive and tough to build); both K9AY and Beverages not very > effected by TX ants/other objects around them so much. No real > recommendations for DHDL, EWE, Flag/Pennant, etc. Being that my property is > only one and a half acres for all but the bi-directional KD9SV beverage it > sounds like my first step is to get the K9AY going and the beverage if I can. > That does mean some 'interesting' hill climbing exercise and hopefully my > neighbor won't be target practicing while I'm on his hillside. Don't we hams > do some strange things just to be able to hear radio signals? > > > Anyway, that's what I got so far. I do wonder which is better between the > 'shared apex loop(s)' and maybe a 4 or 8 vertical RX array from DXE. Why > hasn't any hams wrote about what is involved in making a high impedance > receive vertical work? Of course that requires Doppler shifts I guess like I > used in the USASA for direction finding way back when (flare 7/9 style). Who > would have thought I'd be looking at using that technology so many years > later? > > > Terry > > KI7M > > > On July 28, 2019 at 9:27 PM terry burge <k...@comcast.net> wrote: > > > > > > Hi folks, > > > > I have four kits purchased on ebay for receive antennas as well as a > > bi-directional beverage from KD9SV. Looking on my county plot map it looks > > like I can run about a 412' beverage using my neighbors ground and mine. > > Got a good neighbor you could say who just doesn't want a BOG to trip on > > but a beverage not too low to walk into is Ok. My ebay provided kits are > > DHDL, EWE and Penant/flag/diamond from a low cost Canada source. But I'm > > faced with the problem of fences, power lines, roads and my TX antennas on > > my 1 1/2 acre plot. If one of those antennas could handle being near the > > fences,etc or TX antennas I'd like to hear about it. I've already got a > > K9AY in the works and that one is near my 40 meter 4-square. Running the > > beverage is going to be near or even under my K8UR style 80 meter 4-square > > made with 1/2 WL slopers. I've thought some about converting the 80 meter > > 4-square to using 3":irrigation tubing extended with some 3" irrigation > > tubing and a coil at the elevated base b ut > I'm just not sure if it would be an improvement. It would be near 50' > verticals if I could do it. Not sure if I would lose too much gain. > > > > > > Any suggestions other than 'give up'? I've always had a time hearing > > the DX especially on 160 meters. > > > > Terry > > > > KI7M > > > > > > > > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector