Remember -- the K3 has a built-in TX delay that very effectively
prevents hot-switching of the relays in a power amp. The delay is
also adjustable from a menu, so if, for example, you're switching a
mast- mounted preamp with a slow relay, you can provide a little more
delay.
But if you extend TX Delay significantly, it *will* result in clipped
CW as the leading edge of the keying waveform is not delayed - only
the onset of RF is delayed.
73,
... Joe, W4TV
On 9/27/2013 1:20 PM, Jim Brown wrote:
On 9/27/2013 9:43 AM, Frank Precissi wrote:
WSJT-X is able to interface with DXLabs Commander and use CAT to key the
rig. Or you can use RTS/DTR (if you dont use DXLabs) but you must set
PTT-KEY accordingly.
I've never used anything but VOX to key my rig in SSB or digital modes,
and I'll make a thousand or more Qs in a contest weekend. Plenty good
enough whether driving my KPA500 or vintage Ten Tec Titan 1500w tube amp.
Remember -- the K3 has a built-in TX delay that very effectively
prevents hot-switching of the relays in a power amp. The delay is also
adjustable from a menu, so if, for example, you're switching a mast-
mounted preamp with a slow relay, you can provide a little more delay.
73, Jim K9YC
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