Thnx for responding!
I wanted some insight into other types of low-cost antennas and your
personal experiences with them. I have used folded dipoles made of 300ohm
ribbon with 300ohm feedline and tuner as an effective antenna on 40m and
found it to be reasonable cost.
My present antenna is a cross between a dipole, inverted V and V beam, but
loading it with different homebrew transmitters has produced very different
results.
I really want to lose the tuner altogether and just load up into a nice
1:1 match !

Regards,
ex WN1QIN / KB1IBE

----- Original Message -----
From: "Bill"
Newsgroups: rec.radio.amateur.antenna
Sent: Monday, October 20, 2003 6:04 AM
Subject: 40m QRP antenna - best choise?


I use 1/2 Wave 40m dipole in my attic...it's no DX magnet but I have
earned
WAS every year since 1999 by using it and my QRP rigs. I think in 4 years
my DXCC count is now up to 41 countries.

I use a Ten Tec antenna tuner or the built in tuner in my K1 and I can get
it to match this dipole on 15, 20, 30, and 40m...with 40m and 30m seeming
to
work the best.




"Hoss" wrote in message
news
Unless it is not working for you, the best-cheapest-simplest antenna is
the
one that you have. It's is already paid for and installed!

Harold
WD5KCA
"KB1IBE" wrote in message
...
Hello folks,
I am experimenting with QRP-level antennas and wondered what the
best-simplest-cheapest might be. Any suggestions? (so far, I have a
40m
dipole up)

Thnx in Advance!
73's Dave
WN1QIN / KB1IBE







"KB1IBE" wrote in message
...
Hello folks,
I am experimenting with QRP-level antennas and wondered what the
best-simplest-cheapest might be. Any suggestions? (so far, I have a 40m
dipole up)

Thnx in Advance!
73's Dave
WN1QIN / KB1IBE

"KB1IBE" wrote in message ...

I really want to lose the tuner altogether and just load up into a nice
1:1 match !

Bingo! You've just passed GO, and are ready to have an efficient
antenna system. Lose all the unneeded devices. Feed a 40m dipole with
coax, and tune the antenna to give you a good match. Shouldn't have to
adjust much. Feeding a full wave loop with coax is also a good choice.
Either is very efficient. Even a 1.25 WL dipole would be efficient,
just a different pattern... I usually just use dipoles. Less supports,
work, and just as good for practical purposes on that band. You don't
want to waste power in tuner losses when you run QRP. The losses of
any decent coax on 40m are very low. MK

Mark Keith wrote:
Feed a 40m dipole with
coax, and tune the antenna to give you a good match.

Or feed a 40m dipole with 1/2WL of open-wire line and radiate even more
power. Then adjust the length of the feedline and also work 30m-10m with
no tuner. :-)
--
73, Cecil http://www.qsl.net/w5dxp



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Cecil Moore wrote in message ...
Mark Keith wrote:
Feed a 40m dipole with
coax, and tune the antenna to give you a good match.

Or feed a 40m dipole with 1/2WL of open-wire line and radiate even more
power. Then adjust the length of the feedline and also work 30m-10m with
no tuner. :-)

Yep, Just as long as you ditch the tuner. I guess instead of 1.25
wave, I should have said 1.5 wave. 3/4 wl a side would be a good match
for coax. You could feed an EDZ ".64 wave per leg" with small loading
coils at the feedpoint, and the losses wouldn't be worth worrying
about. Very low...Or use the correct length of ladder line to get a
good match..Just a regular coax fed dipole on 40m will be very
efficient. What, maybe about 97-98 % for the average 50-100 ft length
of decent coax?? Very low losses anyway. MK