At 10:28 AM 22 01 2009, Darwin, Keith, NA1S wrote:
OK, so how closely will it follow the keying if I'm in QSK mode? Pretty close, I assume.
I think you and the other responders are missing a key point. As I understand it, in QSK mode, when you close the K3 Key In, the Key Out closes and then something like 8 milliseconds later the K3 starts transmitting. When you open K3 Key In, the K3 keeps transmitting for 8 milliseconds to make up for the 8 milliseconds lost at key closure, and then Key Out stays closed for another 8 milliseconds before opening. The 8 millisecond pad on each end is to make sure that your amplifier switches both on and off without RF present.
So to answer your code practice oscillator question. No. The code practice oscillator will be on something like 16 milliseconds longer than your key closure. You might or might not hear the extra 16 milliseconds.
I think that the 8 milliseconds, or whatever it is, is menu adjustable, but I have just accepted the default. It keys my AL-1200 bias and an external vacuum-relay TR switch perfectly for full QSK at 40 WPM which is as fast as I ever go.
73, Hank, W6SX Mammoth Lakes, California Elevation 8083 feet in John Muir's Range of Light
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