[RTTY] Mark & Space - High Tones

[iw1ayd]

Phil, may I say: yes.

                                             !
space   mark               zero beat               mark  space
                                             !

The mark is anyway the nearest tone to the suppressed carrier zero beat 
frequency. The readout on radio may change but this is the picture.


            73 de iw1ayd Salvo
> Message: 4
> Date: Wed, 08 Jun 2011 12:58:00 -0400
> From: Phil Sussman<psussman at pactor.com>
> Subject: [RTTY] Mark&  Space - High Tones
> To: rtty at contesting.com
> Message-ID:<20110608125800.11931rgjimcb8v14 at pactor.com>
> Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes";
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>
> I've been wandering on the AA5AU RTTY pages in search of
> Don's email address.
>
> After my exchange with Chen, I had a question about the
> RTTY Intro page on Don's site. It is noted that high tones
> are 2125Hz and 2295Hz (170 Hz split), Mark and Space
> respectively. While nothing is specifically mentioned at
> that point, the Mark and Space designations given are only
> applicable for LSB. On USB I believe the designations should
> be reversed, since 2125 Hz would be the LOWER RF frequency.
>
> Am I right or merely confused?
>
> Thanks ES 73,
>
> de Phil - N8PS
>