Topband: Minimum discernible signal ?

[Pete Smith]

W8JI wrote:

>It also would be nice if someone tapped an engineer on the 
>houlder on occasion, and reminded him that key clicks are not a 
>necessary part of sending CW. 
>
>DSP filtered radios, without a narrow IF filter upstream of the DSP, 
>simply won't do that. The last time I looked A/D conversion with 
>enough speed and bits would cost a thousand bucks. That would 
>buy a lot of crystal filters, which when properly designed are just as 
>good in BW and don't suffer overload!
>
>Hopefully someday manufacturers will someday look at what is 
>important and improve operation on crowded bands.

Very interesting message, Tom.  Makes me wonder why someone with the
necessary technical smarts doesn't offer a modification for better CW to a
popular transceiver (the FT-1000MP comes to mind).  If International Radio
can significantly improve the AGC performance of these radios with a
relatively simple mod, perhaps they or someone else could do the same for
keying.

Back in the old days we used to shape the keying with a couple of
components in the key leads.  I assume it's not that simple any more(?).


73, Pete N4ZR


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