[Amps] I dont accept answers to why did Heath die?

Frank T Brady franktbrady at comcast.net
Mon Feb 1 11:28:03 PST 2010


Paul,
If "more of the DSP processing function needs to be jettisoned from PC 
software"
where would that functionality be moved to - and at what expense?
frank w0ecs

Paul Christensen wrote:
>> Some Windows programs have the same problem.
>>
>> One sure cure is to use WinKey if the Flex software supports it.
>>     
>
> The keyed element timing isn't the issue with the Flex -- it's the T/R 
> turn-around time under the Windows O/S.  According to the QST Product 
> Review, the Flex-5000A switched in ~ 60 ms from Rx to Tx, and back to Rx. 
> That's an eternity in my world.  For comparison, the IC-7700 is about 26 ms, 
> and the K3 is 36 ms.  But even with such slow transitions, the Flex is still 
> capable of very good element timing that does not need WinKey's help.
>
> No doubt the Flex T/R speed is a function of the PC's capabilities, but as 
> SDR hardware and firmware technology progresses, more of the DSP processing 
> function needs to be jettisoned from PC software to get back to reasonably 
> fast T/R timing.
>
> Paul, W9AC
>
>
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