Adding another consideration for your Field Day antennas.....our club used a
dipole on 40 m SSB last year and Yagi's on 20, 15, and 10. The 40 m station
clobbered the other stations. One leg of the 40 m SSB dipole was secured on
the mast for the tribander Yagi which was about 25 feet above the dipole. This
year we will separate the antennas significantly and insure the dipole
broadband pattern is not facing the Yagi.
Another possibility to minimize interference is to use band pass filters. This
year we will also use more modern rigs with better front ends. Coax stubs is
another option.
And for your comment on the OCFD, it's not what I've found using one on 80 and
40 at my home station....no problem working DX, better flexibility and SWR than
my dipole.
Good luck, let us know what you decide.
73....John Bescher, N4DXI
-----Original Message-----
From: Paul DeWitte <k9ot@yousq.net>
To: tentec <tentec@contesting.com>
Sent: Tue, Apr 14, 2015 1:08 am
Subject: [TenTec] Field day antennas
Not sure what is the correct forum to ask this on, but since at least
one of
the radios will be a TT here goes.
To make things simpler for us guys that
set things up, we want to
minimize the number of antennas for field day. We
will be 2A, one SSB
and one CW station.
If we put up an 80m dipole fed with
plastic window ladder line, how
will it play on 20m and up?
How about putting
a 20m dipole at 90 degrees to the 80m ant with a
common feed point with the 80m
ant?
Would separate antennas on separate supports for 80/40, and
20/15/10m
be better? Thus 2 supports 2 antennas for each station.
If I make
the 80m ant 60ft instead of 66 will it tune easier on 40m?
We will not use an
OCFD so do not even suggest it.
Thanks,73
Paul
K9OT
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