[Elecraft] (no subject)
Don Wilhelm
w3fpr at earthlink.net
Tue Mar 7 22:54:51 EST 2006
Bill,
I beleive you are asking about an Amp Keying line for the basic K2 --
Take a look at the AMP keying partial kit from Elecraft and also look at Tom
Hammond's website www.n0ss.net for an updated version - I believe Elecraft
will be adopting Tom's improved Amp Keying circuit for the K2, but I don't
know that with any degree of certainty - I am not an 'insider' for such
Elecraft business decisions. I do know that Tom's circuit works FB.
OTOH, if you are asking about a CW 'PTT' input to the K2 to interrupt keying
until an external PTT signal is present, take a look at my website
http://w3fpr.qrpradio.com article on CW PTT for the K2. This circuit will
prevent keying the K2 until an 'OK to transmit' signal is received from a
sequencer or footswitch - works great for the VHF crowd that needs to delay
the RF output until all switching is ready for RF or for those who have
amplifiers with slow T/R switching.
73,
Don W3FPR
> -----Original Message-----
>
> Anybody have any good ideas about where to connect to the K2
> circuitry to pick off a PTT low keying line. The K2/100 has this
> available on the back panel, but the QRP version doesn't. Any
> ideas? Any curent limitations?
>
> Bill, W7QQ
>
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