[Elecraft] KX3 SSB/DATA low end cut

stephen shearer sm.shearer.01 at gmail.com
Fri Feb 19 12:05:53 EST 2021


The picture was rejected.   Not a problem.  See if the point is said 
without the "extra" 1000 words...   steve

On 2/18/21 8:58 PM, stephen shearer wrote:
>
> I have seen a difference in low end (audio bandpass) performance in 
> the past, it was not a problem.
> I use DATA for FT8.
> I have had "issues" with FOX/HOUND as the FOX is often below 400Hz.
> With few DXpeditions, Fox/Hound has not been an issue.
> When I have tried Winlink VARA, I have problems as it also works below 
> 400HZ.
>
> See: snapshot.  DATA vs SSB... SSB is FLAT (0db), but note the signal 
> is down to ~200Hz. (you can see when I switched between SSB and DATA.  
> In DATA mode, it is ~350Hz (closer to 400Hz for flat data).
> (assuming photo made it past email server)
>
> Yes, I can re-set RX/TX EQ between DATA and SSB, I should not have to??
>
> Is this an Elecraft problem with settings (firmware) or is there a 
> setting I missed?  (to set DATA low end)...
>
> KX3 #3819  Firmware up to date.
>
> 73, Steve WB3LGC
>
>


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