[2m] M2 9 FM mismatch

Willem pe2wdo at gmail.com
Fri Oct 9 13:00:10 EDT 2015


Hi John,

some more details/a more specific question would help.

The driven element of the M2 is a T-match system, which is originally
designed for a balanced transmission line.
I'm not sure what your specific problem is. ​You could mount some 5
suitable ferrite chokes over your coax feed​line at
the antenna feed point.

I use a T-match system for my homebrew 2M9 antenna as well, however I use
it in combination
with a 1:4 balun (0,5 lambda * Vf lenght of 50 Ohm teflon coax).

You will have to adjust the shorting bars, but this configuration will
provide an excellent impedance match.

​BRs

Willem
PE2WDO​


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