[Kenwood] psk31 on TS-2000

Steve Ellington [email protected]
Sun, 17 Nov 2002 08:42:57 -0500


Thanks Alan. You gave me some good ideas. I sold my 870 to buy the 2000 and
one of the things I was hoping for was the ability to use the cw filter in
ssb mode. I kept reading the specs and was convinced that the rx would go
down to 100 hz bandwidth when using psk31. Last night I finally figured out
what they were talking about. Yes, PSK31 but only in FM mode! They expect
you to use PSK for satelite communications and there is a menu setting for
normal or narrow bandwidth FM mode only. Oh well.....
Your method sounds like it might work out for me although it's not quite
what I had in mind. The 2000 has a nice feature in the menu that when
activated, automatically adjust the ssb and cw frequency to provide equal
audio pitch when shifting between them. So if I'm listening to PSK in ssb
mode and hit the cw button, the pitch stays the same. Neat eh?
I suppose Kenwood doesn't understand that a 400hz bandwidth is as broad as a
barn door for psk31. It seems like it would have been sooo easy for them to
rig the filters to go down to 50hz in ssb mode. Maybe their next rig will
allow it or maybe someone will figure out a way to reprogram these. 73

Steve Ellington N4LQ.
----- Original Message -----
From: "Alan Wolke" <[email protected]>
To: "Steve Ellington" <[email protected]>
Sent: Saturday, November 16, 2002 1:26 AM
Subject: Re: [Kenwood] psk31 on TS-2000


> Steve,
>
> I am not sure if the TS-2000 is different from my 870 or not.  I run PSK
through
> the PKD input.  The rig is obviously in SSB mode, and I can adjust the HI
and LO
> filter controls to pare the receive BW down.  However, in SSB mode, it
will only
> go down to 400Hz wide.  Maybe the 2000 will let you go down narrower than
that.
>
> However, when I want to go narrower on RX, there's an easy way to do it.
I
> simply operate "split".  I'll put the RX in CW mode, and adjust the RIT to
be
> equal to my sidetone.  This way, the SSB TX and CW RX frequencies are the
same.
> With this mode of operation, I can use the filter settings for CW, which
lets me
> go down to 50Hz.  Alternatively, you can adjust your rx frequency rather
than
> use the RIT...
>
> So I don't know if there is a menu setting as the quote says, maybe they
are
> simply talking about the normal SSB adjustable DSP filter for recieve.
>
> 73 de Alan - W2AEW
>
> Steve Ellington wrote:
>
> > I want to take advantage of narrow filtering on this rig for PSK31 HF
work.
> > I see the PKD microphone audio input on ACC2 may allow me to input audio
but
> > will this work while in FSK mode?
> > Here's what is confusing me:
> > THis is a quote from several Kenwood sites:
> > Packet filter bandwidth is fully selectable to match packet speed, and
you
> > can also switch ACC2 (PKD) input/output levels. For PSK31 mode, the menu
> > offers a 100Hz bandwidth IF DSP filter.
> > I can not find 100hz bandwidth anywhere much less anything that mentions
> > PSK. Could these be specs for the JA version of this rig?
> >
> > Steve
> > N4LQ
> >
> > - - -
> >
> > Your moderator for this list is:
> > Larry Wilson KE1HZ [email protected]
> >
> > _______________________________________________
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>
> --
> Alan Wolke, W2AEW
> "i usta cuDn't speL enjinere, noW i ar wuN"
>
>
>