[1000mp] 2.0 SSB Filters for the Mark V

Thu, 02 May 2002 23:12:59 -0400

Bill (W4ZW), thanks for the info on the use of menu setting 8-9!  It truly makes
a difference in enhancing the intelligibility of SSB signals that otherwise are
fuzzy and somewhat distorted.  Frankly, I use to blame this problem on the
transmitting station's using too much processing or overmodulating.  (Actually,
that still may be the case, but the manipulation of the receiver carrier offset
does wonders for taking Q3 signals to Q5.)

I had previously left these settings at their default values.  If I now have a
problem with a received station's audio, I now immediately switch in Menu 8-9
and make the appropriate adjustment.  However, there are still some signals that
even defy this adjustment.

73, Joe

Barry N1EU wrote:

> Good advice from Bill, and who can argue with success?  ;-)
>
> With the Inrad 1.8's, I've been suggesting -.160 rx offset on my Web page at
> http://www.albany.net/~bg/Yaesu/MPsetup.htm for the past two years.  I would
> recommend individualizing your tx offset, based on your voice/mic and
> on-the-air tests to maximize contesting punch.
>
> Also, folks may very well prefer a different rx offset when using the wider
> filters during non-contesting ragchewing.  Easy menu-setability for the
> offset is a great feature of the MP/MkV!!!
>
> 73,
> Barry  N1EU
>
> >From: Bill Tippett <[email protected]>
> >Reply-To: [email protected]
> >To: [email protected], [email protected]
> >Subject: Re: [1000mp] 2.0 SSB Filters for the Mark V
> >Date: Thu, 14 Feb 2002 16:03:57 +0000
> >
> >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
> >
> >
> >
> >
> >_______________________________________________
> >List Moderator: Richard Lubash N1VXW
> >1000mp mailing list
> >[email protected]
> >To Change Options or Unsubscribe:
> >http://mailman.qth.net/mailman/listinfo/1000mp
>
> _________________________________________________________________
> Send and receive Hotmail on your mobile device: http://mobile.msn.com
>
> _______________________________________________
> List Moderator: Richard Lubash N1VXW
> 1000mp mailing list
> [email protected]
> To Change Options or Unsubscribe:
> http://mailman.qth.net/mailman/listinfo/1000mp