[Antennas] Dipole Height

Fri Sep 18 20:53:47 EDT 2015

Thanks for the comments DR. Your right, I don’t get on the radio at sunset at all. Better time spent with the family when they are awake. I do get on at sunrise…actually from about 2 am till 6 am or so on Fridays and weekends.(not stealing time from the family). Love to work the grey zone… I don’t have a problem with ZL or VK stations either.

With that being said I have NEVER heard a South Korean station, worked only two Indonesian stations and zero China.
If you can’t hear them you can’t work them. I don’t work 10 much if ever. Now Japan I have worked a few times…go figure. 

Not to hijack a thread but I have an “ally way” cleared out through the woods for a 2 bay 4 element Bruce array pointed straight at Asia , and South Africa (Bi-Directional). It should be in the 90’ range as well….lots of antenna supports here…THAT should Kick A… and smoke Asia !

Ken
N4zed

From: djringjr at gmail.com [mailto:djringjr at gmail.com] On Behalf Of D.J.J. Ring, Jr.
Sent: Friday, September 18, 2015 8:08 PM
To: Ken Durand <N4zed at comcast.net>
Cc: Reflector Antennas Qth.net <antennas at mailman.qth.net>
Subject: Re: [Antennas] Dipole Height

Ken,
Either your work hours don't let you be home near sunset / sunrise or you just don't go after DX on 40 meters, because judging from your QSO map, you should be equalling your 10m performance on 40m as what you have there is a legendary signal squirter of major proportions. A 400 foot loop up 90 feet should work VK and JA long path in the fall - this month and a few months into Winter, easy over the North Pole DX to UA0 - they're not common, but your antenna will compete with the big boys, believe me, I've been there (I've been very far away from USA and listened and worked stations from N1EA/MM on ship) and kept a log of what stations were always heard and the guys with the 400 foot loops were always heard as were the dipoles up high - but no one, no one, had a loop up 90 feet. You would have made N3EA/K3JH Joe Hertzberg's (SK) legendary 4 element 40m yagi at 60 feet sound like a QRP rig.
He had a Big Bertha 120 foot mast, 2 el quad on 80, 3 el yagi 40, 6 el 20m, 5 el 15, 6 el 10m. Plus 1 kW input full QSK, he ran RCA's Philly vacuum tube plant.
I couldn't find a picture of K3JH's array but it was featured on the cover of QST one month, but here's some antenna aluminum for the dB gallery.
http://www.qsl.net/f5vby/Antennas.htm
73
DR

On Fri, Sep 18, 2015 at 7:40 PM, Ken Durand <N4zed at comcast.net <mailto:N4zed at comcast.net> > wrote:
What they said.....Dipole at least 1/2 wl above ground with ladder line and
a tuner.
I use a 400' loop in a triangle, roughly 90' above ground (nice tall popular
trees) feeding at one corner with 450 ohm ladder line with a tuner in the
shack. I have worked the world with this set up on 100 watts. Tunes 10 to
160 (Probably some clover leafs there as well, I know there is a null going
to Asia).
At the height you are talking about you will have an NVIS antenna. NVIS is
great for 500 miles or so.
Save the big coax for UHF/VHF, besides it's too heavy for a dipole, heck
RG213 is too heavy for a wire dipole for me. Tried it and took it down the
same week. Ladder is light enough for the wire to support it.
JK: had me going for a while.... ;-)
Ken
N4zed
PS: Check out my QRZ and see how my loop is configured...the link is
there....
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