I have a 43-foot high x 130-foot long inverted-L that I use on
500-KHz with a HB base coil to ground. I tap 2-1/2 turns from the
bottom to feed with coax using ferrite chokes for common-mode
currents. Works very reliably. On 500-KHz I have winter and summer
taps as the frozen ground changes
On 9/18/2011 9:10 PM, Cady, Fred wrote:
I recently started to learn how to use W7EL's Eznec antenna modeling
program so I decided to try to model the 43' vertical. I don't quite see
the magic but a 4:1 un-un looks like it will bring the impedance into
reason for 80, 40, 14 and 18. The antenna
Just curious if anyone else is using the K3 internal tuner with a 43'
vertical. Will handle all the bands 10 - 160? Or do I need to purchase
an external tuner. I'm about to put one up to get me on the air. This
will be a temporary antenna while I build the antenna farm here at the
new qth.
Just curious if anyone else is using the K3 internal tuner with a 43'
vertical. Will handle all the bands 10 - 160? Or do I need to purchase
an external tuner. I'm about to put one up to get me on the air. This
will be a temporary antenna while I build the antenna farm here at the
new qth.
I hope you have a 4:1 Unun at the antenna. I am going to play with one
of these antennas at 31ft and 43ft for an antenna down at J6 as they are
light and easy to take and seem to work on all bands. It would make an
ok backup/secondary antenna.
On 9/18/2011 10:49 AM, Phil Debbie Salas wrote:
Phil amp; Debbie Salas wrote:
The K3 internal tuner may or may not be able to tune 160-meters - I
suspect
it will have no problem on 80 meters. It depends on the length and loss
of
your feedline. The 43-foot vertical has HORRIBLE SWR on 160- and
80-meters.
And so your line loss will
I ran my K3 with internal autotuner on the DX Engineering 43' fast-taper
vertical with their 4:1 UNUN with excellent results on 40 meters and up. I
tried a couple of local qso's on 75 and it worked ok, but I was only running
100watts on a KW band. I tried loading on 160 meters and think it did
...@mailman.qth.net] On Behalf Of K4SC
Sent: Sunday, September 18, 2011 4:51 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Internal Tuner and 43' Vertical
I ran my K3 with internal autotuner on the DX Engineering 43' fast-
taper
vertical with their 4:1 UNUN with excellent results on 40
On 9/18/2011 9:10 PM, Cady, Fred wrote:
I don't quite see the magic
Didn't you drink the kool-aid, Fred? :)
73, Jim K9YC
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