Matt, Larry & the rest of us,
Jean-Jacques ON7EQ has an excellent web side for various projects but he is
placing the capacitor inside his trap coil. It will there be exposed to a high
magnetic field just like screws, nuts etc surrounding the coil. He even remarks
that the capacitor gets hot during high power operations.
The solution for this is to place the capacitor outside the coil instead of
inside. An other solution would be to make a toroide shaped coil, thereby
reducing the magnetic field further, a hard task to do in a simple way.
Just a suggestion from,
Hans - N2JFS
-----Original Message-----
From: Matt <maflukey@gmail.com>
To: towertalk <towertalk@contesting.com>
Sent: Tue, Dec 16, 2014 10:51 pm
Subject: [TowerTalk] FW: Adding 160 to an 80M dipole?
Coax traps are relatively easy to make. Check out ON7EQ's website for more
info
& links to design software.
Hope this helps.
Matt
KM5VI
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Larry
Banks
Sent: Tuesday, December 16, 2014 7:17 PM
To: YCCC Mail; Ham - Tower Talk
Subject: [TowerTalk] Adding 160 to an 80M dipole?
Hi all,
The ARRL 160 contest got me interested in 160. I would like to add loading
coils and additional wire to my 80M dipole at my QTH in Maine to see how that
might fly. (It would make it an 80/160 dipole.) Yes – it won’t fly very well,
and be narrow band, but it will be easy to do and better than nothing. I have
looked in the ARRL Antenna Book and Low Band DXing and have found little of
help. I do have one article from July 1992 QST by W8NX that looks to be
helpful.
Any ideas or pointers to how this might be accomplished?
73 -- Larry -- W1DYJ
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