I have also used the TS-570D for RTTY work with good results. But, I think
you are being fooled by the 250 Hz. IF filter. I have used the rig with the
500 Hz IF filter, and have never been convinced that it is actually being
used in the FSK filter mode. Rather, I think that even if you select the
300 Hz. filter from the Digital Filter menu, all you get is the 2.4 kHz. SSB
IF filter and a 300 Hz. digital audio filter. The AGC responds to
everything in the 2.4 kHz. IF passband, making the filter seem much wider
than the expected 300 Hz. I would expect that the narrower IF filter,
whether 500 Hz. or 250 Hz. would be brought into action when the narrow
Digital Filter mode is selected, but I don't think it is. It appears that
the narrow IF filter is only used in the CW mode.
73, Rich W1EZ
> -----Original Message-----
> From: Don Hill [SMTP:aa5au@msn.com]
> Sent: Friday, September 29, 2000 11:29 PM
> To: Don Hill; WriteLog Reflector; WF1B Reflector
> Subject: [WriteLog] Re: Kenwood TS570D
>
>
> The question was asked and I forgot to mention, the TS570 is fully
> computer controlled just like the '870 via a COM port with a DB9 connector
> on the back of the radio.
>
> That's another thing that made it so much more enjoyable to me is that
> for the first time ever at this QTH I was able to have computer control on
> both
> radios.
>
> 73, Don AA5AU
>
> ----- Original Message -----
> From: Don Hill <aa5au@msn.com>
> To: WriteLog Reflector <Writelog@contesting.com>; WF1B Reflector
> <wf1b-rtty@wf1b.com>
> Sent: Friday, September 29, 2000 8:41 PM
> Subject: Kenwood TS570D
>
>
> >
> > Sorry for the bandwidth, but I wanted to express my opinion about
> > the Kenwood TS570D as a RTTY contest radio since I used one for
> > the first time this weekend. W5ZE loaned it to me as a 2nd radio.
> >
> > I received the radio less than 2 hours before the contest. Without
> > ever having operated one before, I was able to install it very easily.
> > Since I have owned now two TS870's I was somewhat experienced
> > with how it might work as far as menu settings and FSK/PTT connections
> > were concerned.
> >
> > The '570 I used had a 250 hz filter in it and I used that filter the
> entire contest
> > period. I was very impressed with the radio and it worked very well for
> > me except for the fact that the filters are not as steep as what I am
> used
> > to in the '870 and when a station came very near, the S-meter would
> > jump up and the audio would go way down.
> >
> > The only other problem I had with it was that the audio was low coming
> > out of the PHONES jack. I always use receive audio out of the phones
> > jack since it allows me to adjust the level. For most of the contest I
> had
> > the VOLUME control set 3/4 to almost full on. There was no distortion
> of
> > the audio at that range and I felt that was a good thing from the radio.
> >
> > I made over 700 QSO's with the '570 alone.
> >
> > For the price, the radio seems to be capable of being an excellent 2nd
> > rig for RTTY contesting or even a primary rig for a beginner.
> Hopefully
> > AVVID can fix one of my TS-870's and I'll have dual TS-870's for JARTS.
> > I'm looking forward to that. But if my budget called for it, I'd buy a
> '570.
> >
> > 73, Don AA5AU
> >
> >
> >
> >
> >
> >
> > -----
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> > WWW: http://www.wf1b.com/
> > Questions about RTTY reflector: mailto:owner-wf1b-rtty@wf1b.com
> > Questions about RTTY by WF1B: mailto:wf1b@wf1b.com
> >
>
>
>
>
> --
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