[1000mp] RTTY question

[George McCrary]

Also remember that your sub rx filter is going to be pretty darn wide
compared to the main rx. This will make copying a single signal in a large
pileup pretty tough. Sometimes the splits on RTTY are not as wide as the sub
rx filter.

I've tried to do the same thing using the Digi Keyer from microHam and two
instances of MMTTY. The uHam box has sub and Main controls and I can get
each audio signal to MMTTY, but I've never successfully gotten sub to one
instance and main to the other. But, I haven't worked on it for more than an
hour or so.

George (K8QM)

-----Original Message-----
From: 1000mp-bounces at mailman.qth.net [mailto:1000mp-bounces at mailman.qth.net]
On Behalf Of Cecil Acuff
Sent: Thursday, January 18, 2007 1:11 PM
To: All about Yaesu 1000mp
Subject: Re: [1000mp] RTTY question

2 Icom 756 Pro Radios to be given away to QSL/QTH .NET supporters!  One on
Dec 31 and one on Jan 31.
See http://mailman.qth.net for details.
______________________________________________________________

Lance I think copying two RTTY signals on the same band is doable but you 
have to use the stereo low level audio output with the main receiver on one 
side and the sub on the other.  There may be a menu setting that sets what 
comes out of the stereo output...whether it is discrete left and right or 
mixed a bit.  I don't have the book in front of me.  I know on the FT-1000D 
there is a switch that selects that.

The radio will need to be set up in dual receive mode with each frequency 
dialed in.  You mentioned split frequency which is a designation for 
transmit selection as opposed to dual which is for the receivers.

You may also have a cable problem...if turning up the volume on the main 
causes the computer on the sub to start decoding it's signal you may have 
some kind of cross talk in the cabling.  Use separate shielded cables for 
the audio paths to each computer from the radio.  Also don't use the speaker

output, be sure to use the output on the rear of the radio designed for that

purpose.  It should have a fixed audio level independent of the front panel 
controls.  Again I don't have a book in front of me so I can't give you a 
jack designation....but that is the preferred method going into your sound 
card mic input on each computer...

Hope that helps...

Cecil Acuff
K5DL
----- Original Message ----- 
From: "Lance" <jlhoffman at alltel.net>
To: "All about Yaesu 1000mp" <1000mp at mailman.qth.net>
Sent: Thursday, January 18, 2007 11:30 AM
Subject: [1000mp] RTTY question


>2 Icom 756 Pro Radios to be given away to QSL/QTH .NET supporters!  One on 
>Dec 31 and one on Jan 31.
> See http://mailman.qth.net for details.
> ______________________________________________________________
>
> I have been trying to copy two RTTY signals,
> feeding two different computers, with my
> FT-1000MP.
> I want to run split frequency, with the main
> receiver
> feeding one computer and the sub-receiver feeding
> the other.  Has anyone done this successfully?
>
> It appears to work, sometimes.  But, when I turn
> up
> the volume on the main, or a strong adjacent
> signal,
> the "sub" computer begins to copy the "main".
>
> I'm mainly interested in chasing DX, and would
> like to
> quickly locate the station the DX is working.  I
> have
> done it by using the A<>B buttons, but have also
> twisted
> the wrong receiver VFO knob, then have to relocate
> the
> DX station.
>
> Any suggestions/hints, etc. will be greatly
> appreciated!
>
> 73, Lance WN0L
>
> ______________________________________________________________
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> Home: http://mailman.qth.net/mailman/listinfo/1000mp
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> 


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