While "some" radios do use 12-15 KHz for IF-DSP, others now use 36-40 KHz
and do a much better job, in addition to using 32-bit processing and 24-bit
ad/da conversions.
But you are correct: when DSP processing is effective at "conventional"
IF's of around 455 KHz and above, we should expect to see much better
performance in many areas.
Faster, but affordable, processors appear to be the key . . .
72/73, George W5YR - the Yellow Rose of Texas QRP-L 1373 NETXQRP 6
Fairview, TX 30 mi NE of Dallas in Collin county EM13qe
Amateur Radio W5YR, in the 55th year and it just keeps getting better!
Icom IC-756PRO #02121 Kachina #91900556 IC-765 #02437
Dave McClafferty wrote:
>
> I.F. DSP now uses frequencies of 12-15 Khz. This will undoubtedly change and
> higher I.F. frequencies will become possible. When they do many of the
> problems with internally generated anomalies will disappear.
> 73, Dave, VE1ADH
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