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Old September 26th 10, 10:20 PM posted to rec.radio.amateur.antenna
Owen Duffy Owen Duffy is offline
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First recorded activity by RadioBanter: Dec 2006
Posts: 1,169
Default Looking for ideas: 2m double-stacked full-wave loop for SSB

Registered User wrote in
:

....
I doubt a noticeable percentage of amateurs use wire antennas with a
balanced feed for VHF in 2010. The antenna being considered isn't
commonly used so a common approach to matching might not provide the
most appropriate solution.


The problem is Fritz, that the common HF technique of operating the
transmission line at high VSWR and transforming the impedance to that
which suits the transmitter at the transmitter is less appropriate at VHF
due to increased transmission line loss.

At 2m and above, the technique used more often is to use low loss lines
operated at low VSWR, save short sections that might form an impedance
transformation function.

That is not to say it can't be done other ways.

Omni directional horizontal antennas aren't very popular on 2m except for
the odd beacon and mobile station, full wave loops aren't very often the
choice in that case anyway. Nevertheless, the project is a vehicle for
learning.

Owen