Leroy and all,
Guess this opinion is from those who only work HF with a random wire
dropped over the tree in the backyard. Sure many tuners can load it
and you can make some contacts, but it would not compare well with a
"real yagi" designed for the frequency (which usually means its resonant).
Typical 3-element beam has 6-7 dB gain (not including ground gain
effects) and my 6-element 6m yagi has 13 dBi free-space gain. Gain
provides more than more signal strength is also rejects noise from
off-point directions. Most HF wires loaded by atu on 6m produce
mult-lobe patterns and have terrible efficiency. You can even use a
dummy load but it does not make a very good antenna.
A simple resonant half-wave dipole is way better antenna and how hard
is it to make? Should not take more than 20 minutes to have one up for FD.
I have quite a bit experience working ground-wave over 70-100 miles
on 6m and it s**ks. Of course most of the stations I am trying with
have either verticals (for 52.50 FM) or loading their HF antenna. Yet
this same 6-element yagi has worked ZS4TX via 6m eme! Better believe
ZS4TX was not loading his 80m dipole for that!
My neighbor 15 miles from me tries to use his G5RV on 6m with 100w
but I can hardly hear him. I'm using either my KX3 or K3 + PR6-10
... with a real 6m antenna.
BTW 2m works way better for ground wave and tropo than 6m; 222 is
often better than 2m. VHF propagation is a different "animal" than
working on HF (10m is closer to 6m in behavior).
BTW, Paul - K7CW is a dedicated 6m operator and runs with four
stacked 6m yagis (long time friend).
73, Ed - KL7UW
From: "lmarion" <
[hidden email]>
To: <
[hidden email]>, "Bob McGraw K4TAX"
<
[hidden email]>
Subject: Re: [Elecraft] 6 meters open this morning; listening 50.095
(CW)
Yes the tuners are great, and my 160 mtr full wave loop makes a good 6mtr
antenna, especially on receive.
But something about 6 mtrs on a beam, magic.
Hf beams, yeah they do mostly what you expect. But something about the
short wave length, maybe.
Maybe 2 mtrs is that way too, I don't know.
But every 6 meter beam I have kicks butt.
My KX3 and a portable MFJ 6 meter 3ele beam works like a big gun station.
Leroy AB7CE
73, Ed - KL7UW
http://www.kl7uw.comDubus-NA Business mail:
[hidden email]
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