[Elecraft] KX3 Computer Interface for digital modes

[Igor Sokolov]

Hi Jim,
First, in my experience 8msec delay is THE ONLY point if we speak about TX 
delay. Any setting above 8  msec makes CW choppy. This subject was discussed 
here some time ago. It has been checked here on 4 different K3s and they are 
all the same.

Second, I do not insist on anything. I have just expressed my wish to have 
configurable TX delay in highly configurable K3. Having said that, I am 
afraid your statistics is not applicable to the majority of SO2R stations 
that I know and practically all the MS stations that I know. Even most of 
the SO1R stations here prefer using PTT in the contests.
Actually I am really curious what percentage of contest stations use break 
in  regularly in the contests. That might be a good question for a poll in 
"cq contest" reflector.

73, Igor UA9CDC


>> I had to build small circuit that makes use of inhibit signal in  my
>> K3 to extend rigid 8 ms built into K3 although it would be more
>> logical to have programmable TX delay built into the transceiver.
>
> Hi Igor,
>
> First, I suspect we may have a language problem. The 8msec delay is only
> a STARTING point, and is ADJUSTABLE from a menu. You can set it to be
> much longer.
>
> Second, in MOST SO2R applications,, relays controlling bandpass filters,
> selecting antennas, selecting amps, are switched when the operator
> CHANGES BANDS, not when he goes from TX to RX.  Certainly special
> lockout circuits of the sort you're talking about CAN require a bit more
> delay and will require PTT.  But I would bet a case of your favorite
> beverage (the drink, not the antenna) that for every station doing
> things like that there are at least 100 who are simply turning on and
> off the TX that either runs barefoot of feeds a power amp that feeds
> antennas that are switched when the operator changes bands.
>
> If YOU want to use PTT to control your switching please do. But do not
> insist that the other 99% of operators who don't use it. For them, VOX
> works just fine.
>
> 73, Jim K9YC
>
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