[Kenwood] TS-950SDX CARRIER POINT

[Floyd Sense]

See comments below:

Ron Goldstein wrote:
> 
> Hi All,
> 
>          I recently (last year) bought a TS-950SDX whose prior owner
> evidently fooled around with the service menu's and shifted the carrier
> point. It's a fairly late unit, serial # 00700004 (July 98 ???), so it
> should have all of the latest updates as there are no service bulletins
> dated later than the radio. The service manual came with the radio, and on
> pages 192 & 196, there are references to adjusting the carrier point. On
> page 192 at the top of the page, it says initial setting, menu's #01 & #02,
> but gives no value to set them to--it only says TX display 0. I don't know
> what they mean by "TX Display 0". The only thing that's illuminated is the
> "sub display". What is the "TX Display" ???

I could be entirely wrong since the manual is difficult to understand as
you know, but I believe the TX display to be the area we think of as the
sub display.  If the sub were not on, then the info there would be the
TX info if you were in split mode.  I think the idea of this adjustment
is to make sure that the two menu items are set to zero.  If you press
the up or down keys, the values will change from zero in steps of 20.
the

> 
>          Then on page 196, item #9, it says for the main receiver, choose
> menu #00, and adjust so that tone of the USB & LSB noise is the same. I've
> done that as best as I can, but they're not exactly the same--there's a
> very slight difference in pitch that I cannot correct. For the sub
> receiver, it says go to menu #02, and adjust for the same thing as above.
> That one is fine--good match.

I think the difficulty here is because the adjustment is again in steps
of 20.  Mine sounds the closest when LSB is set to -40 and USB is set to
20.  I've never gotten any bad reports regarding my SSB audio, but then
I've not spent much time soliciting comments either.  

> 
>          Have any of you fooled with these settings, and if you did, what
> are your thoughts ??? My radio is much better now than when I got it, but
> something still doesn't sound right. When listening to SSB, the audio
> sounds much better if I narrow down the "Hi Cut" Slope Tuning by 2 notches,
> rather than leaving it at its widest--it should be the other way around.
> When the 1.8  Khz SSB filter is in, the difference is even bigger.
> Evidently, I'm still not centered. ANY IDEAS ???
> 

I often run the high cut 3-4 notches counter-clockwise to cut the QRM -
it works as I expect.  When I cut in the 1.8KHz filter, the received
signal sounds as if the carrier is in the wrong place - the resulting
audio is too high pitched and devoid of lows.  So, I crank the high-cut
control 4 notches counter-clockwise again, and the received signal
sounds perfect.  I've not played with the carrier points to see how that
affects the 1.8 filter operation.  I'll give that a try.

Several months ago I placed some info I had deciphered from the manuals
on a web page: http://home.sprintmail.com/~sentek/950tips.htm .  If you
have anything to contribute to that, let me know and I'll add it.  Maybe
someone can give us some better guidance on this carrier point
procedure, and I can add that there as well.


K8AC
Another Corvette driver