I once hung a 40-meter inverted V a few feet underneath a 4-element
tribander, and the V absolutely WRECKED the performance of the beam on
15 meters! It was like no beam at all.
The V was fed with open-wire line, so my solution was to detune it by
shorting the end of the line when it wasn't in use. I am not sure if
this would work with coax, and precisely how you detune it depends on
the length of the line (short, open, or something else).
But I'm just saying -- interactions can be serious.
73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
.
On 21/09/2020 2:17, Mike K8CN wrote:
I'll add to Don's guidance this question:
If you're NOT using the OCFD for receiving concurrently while transmitting
on the Yagi, are you concerned about interaction of the two antennas with
regard to pattern distortion of the Yagi by currents induced in the OCFD?
If so, then you need a few wavelengths separation at the frequency of
interest (20 meters being the lowest frequency for the Yagi). If you don't
care about the Yagi's pattern distortion, then don't worry about the
separation distance. Many folks hang inverted V antennas for the low bands
from the same tower on which Yagis are mounted, often just a few feet down
from the Yagi.
Mike, K8CN
--
Sent from: http://elecraft.365791.n2.nabble.com/
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
