[Boatanchors] TCS-9 output matching?

[Al Klase]

Roger,

All the suggestions that have been made seem valid.

In any case, you'll want to keep track of the position of the ANT. COND. 
switch.  It connects a 50 pF 2500-volt cap either in series with or in 
parallel with the antenna connection.  It's completely out of the 
circuit in the "OFF" position.

Al

On 5/5/2011 3:17 PM, Roger Basford wrote:
> OK Mark,
>
> I have tried a series cap, to artificially "shorten" the antenna but I
> didn't try one across the output to chassis, so will give that a try.
>
> 73
>
> Roger/G3VKM
>
>
> On 05/05/2011 19:07, Mark Foltarz wrote:
>    
>> I think the TCS sets are an "L network" output.
>>
>> Try adding a shunt capacitance like a couple broadcast band variables (
>> something like 800 uufd )  across the antenna to ground to make it a PI output.
>>
>> Hook the antenna up also across the antenna output and ground connections.
>>
>> Adjust the TCS as normal and then peak the shunting capacitor.
>>
>> Go back and forth  -  dipping and peaking - until satisfied.
>>
>> de KA4JVY
>>
>> Mark
>>
>>
>>
>>
>>      
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-- 
Al Klase - N3FRQ
http://www.skywaves.ar88.net/