[Elecraft] Sequencing a chain of equipment with a K2 at the head.

[Tom Hammond]

I agree with Vic here:

My KPA100 (and previously my K2) easily keys (without hot switching) my 20 
year old Alpha 76PA which I'd converted to full QSK using a vacuum relay at 
the QRO output and a power reed realy at the DRIVE input.

FIX THE AMP, NOT the RIG!  There are a number of very capable non-QSK to 
QSK conversions available at reasonable prices.

73,

Tom   N0SS

At 12:21 AM 6/6/04, Vic Rosenthal wrote:
>Guy Olinger, K2AV wrote:
>
>>Well, that's an interesting question. "Should" implies blame. Or who
>>owes who what. Or that someone has done something "wrong".
>
>Maybe I should have said, "why compensate for a deficiency in the 
>amplifier by kludging the exciter?"  Full QSK may not be so helpful when 
>you are running stations in a contest, but it is very helpful in a pileup.
>
>Ameritron, for example has done something wrong (without quotes).  Many of 
>their amplifiers use relays that take maybe 25 ms or more to go from rx to tx.
>
>>I have also seen vacuum-relays ruined by hot switching. It takes
>>longer, but the arcing destroys their points as well.
>>Even pin diode circuits can be ruined. I've managed to do that myself
>>before I figured out what was going on.
>
>If you drive a vacuum relay or pin diode system with the K2's 8r line, you 
>will not hot switch, because there is plenty of time for the amp to switch 
>before the RF appears (and the hold time is also adequate, even when you 
>set the K2 to 0 delay).
>
>--
>73,
>Vic, K2VCO
>Fresno CA
>http://www.qsl.net/k2vco
>
>
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