[CQ-Contest] Testing Stubs
k4sb at earthlink.net
Sun Aug 3 15:56:35 EDT 2003
Dave Hachadorian wrote:
> How did you make the stubs? I haven't had much luck
> using an antenna analyzer.
Trick I use is to put on 1 pl259, and then measure the stub with the
259 at a very high harmonic of the frequency I want. For example, 20th
harmonic of 7.0 is 144 mHz. You will find the dip extremely sharp and
you can walk it down to where you will be off only a few kc on 7.
BTW, cut the stub a little long to begin with. ):>
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