[Yaesu] FT 817 main IF filter question

[Clark Savage Turner]

Hi All - New to the list here.  I finally could no longer resist buying 
an 817 and got one of the end of the year deals last week.  Free CW 
filter comes with it, but I am curious about the main SSB filter.  Some 
complain that the stock SSB filter is not adequate.   I will install the 
Collins CW filter that came as a bonus and am not interested in the W4RT 
dual filter board since I don't like the Collins mechanical filters for 
SSB (and I want a cheaper alternative, of course, hi hi).

Now my question, what 455 KHz filter does Yaesu use for the 817 main 
filter?  I understand it is a Murata ceramic filter, is it one of the 
cheap ones like the K14 or K15?  If so, that is good news, since Murata 
makes better filters with the same Z in/out and much better shape 
factors (like the K13 used in the FT 1000 series or the K12 used in the 
TS 940 / 850 series).  I have a few of these lying around and could just 
replace the stock filter to get a little better performance.

Just curious.  I look forward to the multi mode VHF and UHF capabilities 
of the rig as well as the portable HF possibilities.  Looks like fun.

Clark
WA3JPG
Los Osos, CA.