[1000mp] 2.0 SSB Filters for the Mark V

[Bill Tippett]

WB2AJI wrote:

>I have installed the 2nd and 3rd IF crystal 2.0 khz filters from Yaesu, =
>and must admit I am disappointed.....
>
>Between the noise and I guess the shape factor of these units, it is =
>extremely difficult to copy weak signals......the interference reduction =
>is not impressive either.....
>
>Do the Inrad 2.1 filters work better?.....Shall I try to return the =
>stock 2.0 filters and obtain the Inrad?.....

        Mike, before returning your 2.0 Yaesu filters, first try 
setting Menu 8-9 to the following values:

r-LsbcAr        -0.200
t-LsbcAr        -0.100
Proc-Lsb        -0.100
r-uSbcAr        -0.200
t-uSbcAr        -0.100
Proc-uSb        -0.100
t-A3-cAr        -0.100

        The carrier offsets for all of these settings was 0.000.  I 
also noted the poor RX (and TX) audio with the default settings, but
once I changed to the above settings for my Yaesu 2.0 pair, both RX 
and TX audio improved dramatically.  I've been using these settings 
for the past 3 years in numerous SSB contests on 10 meters including 
setting the current USA records in CQ WW SSB, ARRL DX SSB and CQ WPX 
SSB.  The filters you have will work fine once you change the carrier
offsets.  I certainly would consider the Inrad 1.8's if I had it to 
do over again, but that would cost another $270 and I frankly doubt 
I would notice the difference.  BTW, the above carrier offsets will 
also greatly improve the performance of the stock 2.4 filters or
any Yaesu or Inrad SSB filters for that matter.

                                                73,  Bill  W4ZV