That is crazy. 2Tone sends:
LTR>W<FIG>1<LTR>ABC<SP><FIG>599<SP><FIG>05<SP><FIG>05
It will also send the appropriate case shift at the start of a new line for the
first printable character. 2Tone has 3 shift states: letter, figures and
undetermined. When in undetermined state it will send the correct shift state
that applies to the next printable character.
73 David G3YYD
-----Original Message-----
From: RTTY [mailto:rtty-bounces@contesting.com] On Behalf Of Joe Subich, W4TV
Sent: 21 December 2017 20:22
To: rtty@contesting.com
Subject: Re: [RTTY] What Does MMTTY really send?
> So, how does MMTTY encode this with the TX-USOS button clicked?
> "W1ABC 599 05 05 NY NY"
> I'm wondering if someone knows off hand so I don't have to instrument > it.
> Reading the help file literally, it would be this:
> <LTR>W<FIG>1<LTR>ABC<SP><LTR><FIG>599<SP><LTR><FIG>05<SP><LTR><FIG>05
> <SP><LTR>NY<SP><LTR>NY > ...where <SP> = space and the LTRS and FIGS are the
> shift characters.
That is my understanding of USOS operation. It is also the reason for the old
argument about using "-" instead of <space> in a string like
599 05 05 NY NY (e.g. 599-05-05 NY NY) in order to save the "extra"
<LTRS><FIGS> preceding each instance of "05"
73,
... Joe, W4TV
On 12/21/2017 2:55 PM, aflowers@frontiernet.net wrote:
> I'm running some simulations with various contest exchanges against BER,
> along with the various USOS combinations that are possible. I was reading
> the MMTTY manual and it says this about the TX tab:
> "USOS-- turns on USOS on transmit. When you transmit a space, MMTTY also
> sends a LTR shift character."
> So, how does MMTTY encode this with the TX-USOS button clicked?
> "W1ABC 599 05 05 NY NY"
> I'm wondering if someone knows off hand so I don't have to instrument it.
> Reading the help file literally, it would be this:
> <LTR>W<FIG>1<LTR>ABC<SP><LTR><FIG>599<SP><LTR><FIG>05<SP><LTR><FIG>05<
> SP><LTR>NY<SP><LTR>NY ...where <SP> = space and the LTRS and FIGS are
> the shift characters. The LTR/FIG sequence seems kinda crazy, but I'd like
> to know for sure so I can simulate what really out there in the wild.
> Thanks,
> Andy K0SM/2
>
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>
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