[Kenwood] TS850 and SB200

[Rob Stampfli]

One question I've pondered when connecting linears:  What does
the exciter see during for the first few milliseconds of
transmission, especially when using VOX or semi-break-in CW.
I guess I've always presumed the manufacturer takes into account
the internal relay's switch time when designing the gear with
these options, but they cannot know the speed of the linear's
relay, and if you then add a second external relay, you add
several more milliseconds during which the exciter is potentially
transmitting into the transition between antenna to linear input.
I suppose it is inconsequential, as modern gear should accomodate
such glitches and no one to my knowlege has ever complained about
their rig being affected by it, but it does seem like you could
be potentially stressing the exciter every time you go into
transmit under such circumstances.

Can anyone speak to this definitively?

Rob

On Wed, Nov 19, 2008 at 06:17:52PM -0800, Tom Osborne wrote:
> Right, especially when you can build a cable and interface for about 10  
> bucks.  Why take a chance thinking, "It might work."  73
> Tom W7WHY
>
>
>> Simple question.....
>>
>> IF the relay is NOT capable of handling the voltage and/or current  
>> requirements of the SB-200 relay ...
>>
>> Would you rather
>>
>> 1. Replace an external, standard, readily available, easily accessed  
>> relay?
>>
>> or, worst case, (thanks Murphy....)
>>
>> A. Replace an internal relay available ONLY from Kenwood, buried three  
>> layers deep and soldered onto a multilayer PC board?
>>
>> 73, Garey - K4OAH
>> Glen Allen, VA
>
> ______________________________________________________________
> Kenwood mailing list
> Home: http://mailman.qth.net/mailman/listinfo/kenwood
> Help: http://mailman.qth.net/mmfaq.html
> Post: mailto:Kenwood at mailman.qth.net