[SMCARA] RTTY

[Jason Rearick]

FB Bill, glad that worked for you.  I believe with option changes you can 
setup to transmit on RTTY USB or LSB, but that is just the way I found that 
worked for my setup.

Jason

-----Original Message----- 
From: Bill Jones
Sent: Monday, November 17, 2014 5:27 PM
To: Clarke, Tom AIR4.0P NATOPS
Cc: smcara at mailman.qth.net
Subject: Re: [SMCARA] RTTY

Well, got home and checked and tried a few things. I listened thru the
Moni Switch for my signal. All I got was a constant tone. Tried a few
setting in HRD with no luck. Next I looked at radio and went to
"Data-USB" Mode and in RTTY Mode transmitted on an empty freq at the
time. Got the RTTY sounds coming back out. So took it a step further
and made contact with N6JV in the 30M Band and was able to exchange a
good signal report. So from my assumption. The 3000 needs to be in
Data Mode and USB so far. I guess due to the software doing all the
work and using the USB connection to control what is transmitted from
the radio. Will continue to refine but it looks like progress. 73's
Bill

On Mon, Nov 17, 2014 at 2:00 PM, Clarke, Tom   AIR4.0P NATOPS
<frederic.clarke at navy.mil> wrote:
> Bill,
>
> Make sure in your email options you do not have the "Sign" block checked. 
> Some sites will reject signed messages.  That happens to me on SMCARA when 
> I send from here at work.
>
> Just a quick note on RTTY.  RTTY consists of two frequencies or tones, a 
> Mark and a Space and they have to be in the correct order.  In true FSK, 
> the carrier is shifted up and down to produce the Mark and Space.  When 
> using SSB, the M & S signals are produced by sending a discrete audio tone 
> to the transmitter.  A single tone will then produce a carrier and the 
> other tone will produce the shifted carrier.  To decode or be decoded, you 
> must have the correct order, called Mark High or Mark Low.  We can change 
> those by either changing the software to reverse the tones or by selecting 
> USB or LSB.  Lots of combinations there to get wrong!  In other modes 
> (PSK, etc.) either it doesn't matter or the software automatically 
> compensates for the inversion.
>
> Tom
>
> Tom Clarke
> P-3/C-130 Program Support, PEO(A)
> USN/USMC National Airworthiness Office
> Naval Air Systems Command, AIR-4.0P
> (301) 995-3793/DSN 995-3793
> Fax: (301) 342-3276
> Cell (301) 904-2053
> frederic.clarke at navy.mil
>
>  "We're out of money, now we've got to think."
> -- Winston Churchill
>
>
> ______________________________________________________________
> SMCARA mailing list
> Home: http://mailman.qth.net/mailman/listinfo/smcara
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:SMCARA at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to merc669 at gmail.com
______________________________________________________________
SMCARA mailing list
Home: http://mailman.qth.net/mailman/listinfo/smcara
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:SMCARA at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to jbr13 at md.metrocast.net