George,
I don't believe any data that can be trusted has been generated. About
all I have heard is reports like yours. Since the DSP controls the
width and quality of the transmitted signal much more than the IF
filter, I would believe that there is little to no difference at all in
the TX signal.
It is difficult to judge differences in the filters from an on-the-air
signal unless the same person transmitting has 2 K3s sitting right next
to each other and uses the same microphone and TX EQ settings while you
evaluate for any differences in the filters - there are just too many
other variables involved including propagation variances from 2
different locations.
Of course, if you are trying to justify a 2.8 filter for your K3 rather
than the 2.7, then by all means, order the 2.8 if you don't mind
spending the extra $$$ :-) .
73,
Don W3FPR
George wrote:
> Has anyone done a critical comparison of the 2.7 vs 2.8 as to the quality of transmitted audio?? I participate in a 75 m net which has several K3 owners, and it seems to my somewhat defective ears the 2.8/ 8 pole filter sounds a bit better and is easier to EQ than the 2.7/ 5 pole filter.
>
> Comments would be welcome.
>
> thanks,
> George, n4ym
>
>
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