[Elecraft] K3 TX delay

briana alsopb at nc.rr.com
Wed Feb 15 11:24:22 EST 2012


The proper solution is NOT WINKEY.  The QSD occurs with an external 
keyer as well as internal keyer.

The fix has to be within the K3.

73 DE Brian/K3KO

On 2/15/2012 10:30 AM, Joe Subich, W4TV wrote:
> Rick,
>
>    
>> So the concern is with amps that switch in, let's say 30 ms, for
>> example? You mean the 20 ms setting is still too fast for those
>> amps?
>>      
> No, the problem is with straight key or an external keyer.  TX
> Delay delays the onset of RF by the correct 8 - 20 ms but it does
> not also delay the entire incoming CW so the elements get truncated.
> This may not be an issue for those who are not using QSK but with
> QSK the CW elements are truncated.
>
> One solution is to use a keyer like the K1EL WinKey that permits
> adding a fixed length to the elements to compensate for the K3's
> "bit clipping".  However, the proper solution would be for the K3
> to extend each element by the length of TX Delay when in QSK and
> extend the initial element by TX Delay when in semi-break in.
>
> 73,
>
>      ... Joe, W4TV
>
>
> On 2/15/2012 10:08 AM, Rick Stealey wrote:
>    
>>
>>
>>      
>>> I suspect that as far as Wayne and Eric are concerned, any amplifier that doesn't handle qsk is broken, so the K3 doesn't need fixed.
>>>
>>> Matthew Pitts
>>>        
>> Matt,
>> So the concern is with amps that switch in, let's say 30 ms, for example?
>> You mean the 20 ms setting is still too fast for those amps?
>>
>> Rick  K2XT
>>
>>    		 	   		
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>>      
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