http://elecraft.85.s1.nabble.com/Default-K3-transmit-delay-may-be-too-short-for-slow-QRO-amplifiers-tp7641790p7641797.html
Also, a reminder: this is nothing new. We’re just clarifying a delay offset that has existed for a long time. There have been no recent firmware changes.
It would be possible to modify the K3’s keying algorithm to allow for much longer delays (say, 0 to 200 ms). Of course this would significantly shift CW RF output in time relative to keying input.
Fortunately, very few amplifiers require more that a few ms of extra delay.
> On Jun 8, 2018, at 7:33 AM, Wayne Burdick <
[hidden email]> wrote:
>
> The delay can be set from 8-20 ms at present. Given the small time offset, this is actually 5-17 ms (approx). Use small values if possible.
>
> With external keying, you can generally compensate by reducing the device’s weighting.
>
> Wayne
>
> ----
>
http://www.elecraft.com>
>> On Jun 8, 2018, at 5:02 AM, "
[hidden email]" <
[hidden email]> wrote:
>>
>> I agree that 5ms is too fast for many amplifiers. Is computer sent CW also
>> spoiled when increasing the delay? Does it only effect QSK or all
>> transmissions?
>>
>> John KK9A
>>
>> Igor Sokolov ua9cdc wrote:
>>
>> Wayne it is a pity that TX delay setting affects CW timing. Changing TX
>> delay from default even one or two steps makes CW much worth. Can you
>> figure out a way to make CW timing independent from TX delay? With 5 ms
>> TX delay working in many contests I already had to change a pair of
>> relays in the amplifier. 10-12 ms would be fine for me. 20 ms will
>> probably suit the majority of users. But 5 ms is way too fast and
>> unfortunately cannot be altered without spoiling CW sending. I know that
>> I could build external sequencer but this does not look neat enough
>> especially for portable field operation. Every other radio I had allowed
>> TX delay adjustment to at least 20 ms.
>>
>> 73, Igor UA9CDC
>>
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