[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?
>>
> 
> _______________________________________________
> 
> 
> 
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk



More information about the TowerTalk mailing list