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Re: Looking for Completely Functional Dual-Band 20/(17/15/10/6) Meter QRP Rig with SSB/PSK #bitx20help

 

When "trimming" the ends of your wire dipole, try just folding them back
tightly against the wire.? This allows you to put back some wire if you
accidentally remove too much.?

Another alternative to use might be soldering a short wire "dropper" on
the end of your dipole and trim that for frequency.? If you cut too much
off you can just replace the short dropper instead of the whole wire.

Arv? K7HKL
_._

On Sun, Feb 25, 2018 at 10:34 AM, Jerry Gaffke via Groups.Io <jgaffke@...> wrote:
When we set up a single band wire dipole antenna, it needs to be cut to the correct length.
This optimal length can vary based on wire diameter, insulation if any, distance to other objects, ...
So it's usually cut a bit too long, and then "tuned" by measuring the resonant frequency
and then judiciously trimming the ends a bit.??
Though I got by when starting out (no swr meter or network analyzer) with just a tape measure.

Once set up, you can drive the antenna from your rig without using a "tuner",
which is a separate piece of gear to match the 50 ohm transceiver to whatever the antenna happens to be.

Jerry, KE7ER

On Sun, Feb 25, 2018 at 09:15 am, Mark wrote:
I don't need to tune a piece of electrical wire for a single band.
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