A possible firmware fix for the LPF relay delay would be to add a pipeline delay
to all CW code elements, not just the starting edge of the transmission.
The sidetone could happen immediately, so the operator would not notice a difference.
Jerry
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On Mon, Jul 30, 2018 at 11:17 AM, Jerry Gaffke wrote:
At 20 wpm, a dot is around 60 ms.
Would be interesting to measure how long it takes the LPF relays to turn on
after TX_RX is driven true.? There are two levels of relays involved there,
first the T/R relay has to supply power to the TX rail.? Maybe 20ms total?
And need additional delay to add a margin of safety.
So getting iffy.
