[Elecraft] K2 is break-in only on CW?? Part II

[Jay Kesterson]

  Thanks for all for the replies to my question. My concern is using the 
K2 with V/UHF transverters, amps and preamps (some mast mounted). These 
are usually controlled with a sequencer that hard keys the radio last. 
In certain setups accidentally bumping the paddle and having the rig 
xmit could damage equipment down stream. I can use the PTT line from the 
sequencer, that would normally be used for hard keying the rig, to key a 
relay that doesn't allow CW to get to the K2 till all the up stream 
equipment is ready. However I use a foot switch and headset, that gets 
switched to three different rigs, on SSB. The footswitch is used to turn 
on the sequencers during both SSB and CW operation.. On weak signal VHF 
we often switch between SSB and CW. If I use PTT, from the sequencer, on 
SSB I haven't figured out a way to easily (automatically) disable the 
SSB PTT line on the K2 when I switch to CW. Any ideas, beside unplugging 
the mic connector or otherwise manually disabling the mic PTT line?? Is 
there some signal point inside the K2 that is active or grounded only 
during CW that could be used to possible drive a relay to disconnect the 
SSB PPT line while in CW??  Or better ideas??

Thanks,   

-- 
73,  Jay  K0GU  DN70mq