Re: need some roofing filter advice?

Posted by Ed Muns, W0YK on Jul 20, 2011; 4:44pm
URL: http://elecraft.85.s1.nabble.com/need-some-roofing-filter-advice-tp6581353p6603477.html

What's "different" about the K3 is its outstanding usability.  With a single
front panel control, HI CUT, any SSB bandwidth can be quickly dialed in,
maintaining optimum intelligibility.  With the few prior generation radios I
tried narrow SSB filtering on, there were obscure menu settings and/or IF
controls that were much more complicated to set for the same result.  Some
users never figured out the appropriate settings and thus concluded it
didn't work.

Ed - W0YK

Bill, W4ZV, wrote:
> The K3 is not actually different or it would be violating the
> laws of physics.  To make ANY radio work using narrow
> bandwidths on SSB is simply a matter of optimizing the
> placement of the filter passband in the voice spectrum (as Ed
> states above).  The FT-1000MP, K2, Orion and many others can
> be made to work with narrow filters.  I first discovered this
> on an MP I used in the late 90s:
>
> http://www.va3cr.net/va3cr2.net/markv/Troubleshooting/Filters.htm

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