[Elecraft] Small QRP Xcvr Use Question
Sandy
ebjr37 at charter.net
Tue May 24 10:07:34 EDT 2016
If you don't mind carrying a "load" (If you are not hiking/backpacking)
I have found the Buddipole/tripod is a very excellent antenna from 40-17
meters in the horizontal dipole configuration at 9' using the 9.5'
whips. 40 and 20 use same identical setup just changing the setting of
the loading coils from one band to the other. Very effective and fairly
easy to setup with an analyzer for "tweaking it". I usually use an
FT-817 with it on CW or SSB.
For something simple but not nearly as good and touchy to use, is a 33'
wire a small tuner like the MFJ "pocket tuner" and an LED SWR indicator
for tuneup used with a 17-30' counterpoise wire laid on the ground.
MUCH lighter.
Everything will fit into a 8 X 8 X 8 photo bag plus a spare battery pack
(LiPO 16 v A/H 12 volt pack the size of a 7" tablet computer.) Will
last 3-4 hours or more.
The problem that rears its ugly head is you require a limb of a tree up
at least 15 - 20 feet or more to raise the wire as high as possible.
Performance with the Buddipole is better if you can stand the additional
bulk of the bag and parts to carry.
73,
Sandy W5TVW (NO! I don't walk very far! Too damned old for that.)
On 5/24/2016 8:16 AM, ae5x at juno.com wrote:
> The easiest way to operate effectively from the field on 40/80 meters is via NVIS propagation. I use to do this with my Norcal-40 quite often when taking day hikes by putting up a dipole about 5 to 8 feet high. No feedline was necessary - the radio was at the center of the dipole and I was always surprised at how well I received stations (and them, me) out to a distance of ~400 miles.
>
> For higher bands I use a Par End-Fedz. Their "MTR" model designed for 20, 30 and 40m works well on 17m also without requiring a tuner. I usually hang it inverted V fashion.
>
> John AE5X
> http://ae5x.blogspot.com/
> ____________________________________
> Putting a KX1 or KX2 in ones pocket is one thing; putting out a readable
>
> signal on 80 or 40 meters is something else and continues to challenge
>
> even the folks at home with full size rigs.
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