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K0CQ > NWSGRP 14.09.09 22:03l 17 Lines 819 Bytes #999 (0) @ WW
BID : 57418_W0AK
Read: GUEST
Subj: Re: Antenna advice?
Path: DB0FHN<DB0FOR<DB0SIF<DB0IDN<DB0MW<DB0SWR<DK0WUE<DB0RES<ON0AR<N9ZZK<
WD9EKA<K9BBS<KQ0I<W0AK
Sent: 090914/2006Z @:W0AK.#CIA.IA.USA.NOAM #:57418 [Des Moines] $:57418_W0AK
From: K0CQ@W0AK.#CIA.IA.USA.NOAM
To : NWSGRP@WW
The dipole is easier to feed (more reasonable impedances at all
frequencies) with the open wire line and a classic tuner. Many
modern tuners have greater capability at low impedances and that
allow tuning with a coax feed. The worst case with coax is when
the antenna is full wave resonant and the coax is an odd multiple
of 3/4 wave long. Then the impedance seen at the tuner is a few
ohms. But automatic tuners that will feed a short whip will often
do the match just fine. I have one up for 80 that I've tuned for
80 through 10 successfully with a T type tuner. I don't have
enough coil to get to 160, but I've made a contact on 160 too. I
thought it tuned on 6, but I didn't hear or work any signals.
73, Jerry, K0CQ @ W0AK.#CIA.IA.USA
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