"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)

Have also good results with a L/2 vertical (aluminum) erected quasi alone in
the field in pulling on the tendors.
quasi on par with a commercial model.

Thierry
ON4SKY
http://www.astrosurf.com/lombry


Thnx in Advance!
73's Dave
WN1QIN / KB1IBE

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

In article , says...
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)

Unless you have the option of putting a beam antenna up, you should be
just fine with the dipole you have! (Assuming of course that what you
have WORKS as it is now, that is.) A 40m dipole should also work well
on 15m, and with a tuner you can probably get a good match on other
bands. The problem with that is that you wind up with less of your
power getting out when you have to tune the antenna than with one which
is already resonant at your desired operating frequency.

In my particular case, I have a "shorty" G5RV antenna up about two
stories over my patio. The standard G5RV is a bit long for my limited
real estate, so I opted for the shorter version that only goes down to
the 40m band. I've listened to some stuff on the 80m band here in the
local area and it doesn't sound attractive enough for me to try to put
the longer antenna up anyway. g With what I have up now, plus a tuner
(necessary with the G5RV), my FT-817 has provided my logbook with plenty
of entries over the past couple of years...!

Good luck to you! If you would, please drop me a note and let me know
what you decide on.

--

-- //Steve//

Steve Silverwood, KB6OJS
Fountain Valley, CA
Email:
Web: http://home.earthlink.net/~kb6ojs_steve