[GreenKeys] ITTY/WLO
Keelan Lightfoot
keelan at mail.grenander.com
Sat Sep 3 02:33:47 EDT 2011
George,
I'm sorry to hear that y'all couldn't work something out. If you could come up with a more stable way to deliver the ITTY feed, do you think they would re-consider?
Also, with the format switching between SITOR-B and RTTY for every story, doesn't that mean that those of us with "dinosaurs" would get a paragraph of garbage between each RTTY story?
- Keelan
VE7NCR
On 2011-08-31, at 8:04 PM, George B. Hutchison wrote:
> GreenKeyers - - -
>
> Today Qwest/CenturyLink was upgrading internet service in this
> direction of the world by installing fiber optics to replace
> previous methods.
>
> ITTY is back on the air, as is WLO.
>
> WLO has changed format to include SITOR-B, (Forward Error
> Correction) transmissions.
>
> It appears that The story is first run in SITOR-B, and then mode
> switches to RTTY after the SITOR-B transmission is concluded.
>
> An announcement at the conclusion of a SITOR-B run states that the
> mode is shifting to RTTY, and at the end of an RTTY segment it
> announces switching to SITOR-B.
>
> Shift in RTTY is right-side up, meaning mark frequency s higher in
> frequency than space.
>
> SITOR-B decoding must be reversed. Speed of RTTY is 45.45 baud.
> Speed in SITOR is 50 baud.
>
> Using decoding program SeaTTY for a comparison indicates that
> SITOR-B indeed produces more readable copy.
>
> The ITTY system will no longer be supplying RTTY signals for WLO.
> The technical specialists at WLO have a specification for
> reliability that ITTY cannot compete with.
>
> Windows and the internet being what they are cannot meet the
> demands. Critical Updates are such that most often they require a
> shutdown and reboot. A recent update of Windows Media Player had the
> WLO crew scratching their heads as to how to bring Media Player back
> on line.
>
> On behalf of the ITTY staff I would liike to thank Rene, Alan the
> Programmer, Nick Tusa and loveable Jack Hart for the opportunity to
> participate in this adventure. We proved that it could be done over
> the internet and that the interest in RTTY News Transmissions is
> there. It just does not meet the standards required to meet a very
> demanding application.
>
> W7TTY
>
>
>
>
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