[WT-support] HELP!

[Bob Wilson, N6TV]

Filipe,

I don't have enough information, so I can only guess.

Make sure the stereo T-adapter is plugged all the way in to the LINE IN jack
of the sound card, not MIC. IN.  It is easy to mix them up.

Make sure there is no RFI when you connect the common grounds between both
Radio 1 and Radio 2 through the T connector. If you are using Elecraft K3,
use the LINE OUT jacks not the headphone jacks.  Only use the left (VFO A)
channel from each radio.  Ignore VFO B / Sub Rx (right channel).  Turn down
the RTTY monitor sidetone in the radio so that when radio 1 transmits, very
little audio leaks through to radio 2.

Connect a heavy braid (coax shield) directly between both radio's ground
posts so that any RF stays away from the audio line shield as much as
possible.

Use FSK instead of AFSK.  Make sure the station Mic. is MUTED.

Make sure you are starting TWO copies of MMTTY in separate directories.
Each copy of MMTTY must be installed in a *separate* directory, e.g. Radio1
uses C:\Program Files\MMTTY\MMTTY.EXE and Radio2 uses C:\Program
Fiels\MMTTY2\MMTTY.EXE.  See this
link<http://docs.win-test.com/wiki/Menu:Options#RTTY_configuration...>for
an example.  MMTTY 1 should monitor LEFT channel and MMTTY 2 should
monitor RIGHT channel.

Make sure you are not using any of the Advanced SO2R Scenarios that mix up
the audio from both radios using $R1R2 etc.

Are you using MK2R+?

If you still can't figure it out, I would have to see all the screen shots
or you would have to install CrossLoop and a broadband connection for
debugging the setup remotely.

73,
Bob, N6TV

On Fri, Sep 24, 2010 at 4:06 PM, <ct1ilt at sapo.pt> wrote:

> Hi guys,
>
> I am trying to setup eveything for WW RTTY to operate SO2R but I am
> having an audio issue.
>
> I have audio from radio 1 into an RCA plug and audio from radio 2 into
> another RCA plug then I use a T from 2xRCA to Jack so I have 1 sign to
> tip of jack and the other signal to next contact of Jack plug.
>
> My problem is after TXing for example on Radio 1 the audio will be
> mixed up and appear on Both MMTTY windows or one will be with overflow
> signal and the other almost no signal.
>
> I have the Jack plug into LINE-IN port of my sound card SB LIVE 1400!
>
> I have chosen Left channel for RADIO A and right channel for RADIO B
> in MMTTY configs.
>
>
> any idea how to fix this so I have the proper audio on each MMTTY scope?
>
> Thank you
>
> Filipe CT1ILT aka CR6K
> _______________________________________________
> Support mailing list
> Support at win-test.com
> http://www.f5mzn.org/cgi-bin/mailman/listinfo/support
>
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