[TowerTalk] Coaxial Stubs target frequencies for CQWW SSB
jimlux
jimlux at earthlink.net
Thu Oct 1 13:45:10 EDT 2020
On 10/1/20 10:32 AM, Jim Brown wrote:
> I would start by STUDYING http://k9yc.com/Multi-Station.pdf and
> http://k9yc.com/StubPlacement.pdf
>
> In addition, you will need to consider the length added to the stub by
> the switching circuitry, also the optimum location of each stub along
> the feedline, which is VERY important.
>
> 73, Jim K9YC
Given all the effects of parasitics, switching components, etc.
You might find that investing $50 in a NanoVNA would be useful. It
would let you make "thru" measurements for the system, for instance, as
opposed to just cutting stubs, etc.
>
>> I have seen comments over several articles about making different length
>> sets for CW vs. SSB contests. What target frequencies should I be cutting
>> each of the stubs to using my RigExpert analyzer for SSB? What would I
>> use
>> for a second set for CW contests?
>>
>
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