[Elecraft] CW PTT

[Eric Swartz - WA6HHQ, Elecraft]

Another way to accomplish this is to just parallel the foot switch with 
the Key-out line from the K2 to your amp, instead of trying to key the 
K2 with it. That way you can hold down the amp keying line and relay 
during long CW TX pauses. (There is no need to hold down the K2's TX as 
it does not have any T/R relays to clatter :-) Its a fully silent 
break-in or semi break-in machine.

73, Eric  WA6HHQ

Don Wilhelm wrote:
> Ken,
>
> There is an easy solution with a double pole relay. Just run the paddle
> lines through the relay contacts, and wire the realy coil in parallel with
> the relay in your amp (it must use the same coil voltage as the one in 
> your
> amp). Then use the footswitch to close both the AMP and the external 
> relay.
> If the paddle closures are not seen by the K2, it will not be keyed by the
> paddles until the footswitch is operated.
>
> BUT - I would think that the max delay of 2.5 seconds would be adequate so
> you can run the K2 in 'semi-QSK' - the amp would only drop out on really
> long pauses.
>
> 73,
> Don W3FPR
>
>
>> -----Original Message-----
>>
>> You bet, I -LIKE- to use a foot switch on CW. It lets
>> me pause ... for whatever reason ... longer than the
>> "normal" T/R time. If an amp or other external gear
>> is involved it keeps everything from clunking and clattering
>> up/down.
>>
>> I'm a newbie, just building S/N 5665 and I just assumed
>> I'd have PTT on CW .....