开云体育

Hello David,

Thanks a lot for the new Alpha version 'fldigi ver4.2.06.27'.

There are 2 more ITA2 Baudot shifts that would need to be implemented, please, since they still don't print correctly in this new version.


Here's an example of a DRA5 (24/7 on 5195 kHz) Solar Wx Report decoded in FLdigi, showing one of the 2 'missing' character swaps:

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SOLAR CONDITIONS:
SOLAR WIND SPEED 420 420 420 KM
SOLAR WIND DENSITY 18 18 18 CM-3
SOLAR WIND TEMP 112 112 112 KK
IMF BZ COMPONENT "2 "2 "2 NT <-- this is how it's shown even with 'ITA-2 encode' switched ON.
IMF BZ COMPONENT +2 +2 +2 NT <-- this is the way it should print instead.


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The second one, not shown above, is the swap between ';' and '=', which is also part of the ITA2 standard, or USTTY variant, respectively.


An overview can be found in the attached commented extract of a Wikipedia page. I'd suggest to leave the further 2 character swaps (beyond the ones mentioned above) unchanged and keep the 'US' variant in both settings, for obvious reasons, since they are more likely to be used.


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Other observations:

Trying to 'install' the new alpha fldigi ver4.2.06.27 by just copying the new files (from the archive) into an existing installation failed for some reason. This means using fldigi.files (config etc). from my last used fldigi ver4.2.06.19 didn't work. While launching the previous (.19) version in the same folder continued to worked without any issues, running the new (.27) caused a program abort, without any notice, even before producing a Gui window, but fldigi.exe was temporarily present in the Task Manager. This was repetitive. Unlike previous updates which allowed keeping all personal config files, the latest alpha sadly didn't provide this (most useful) option.

On the other hand, a complete new installation (into a fresh 'FL_APPS' folder) opened Fldigi correctly. The new ITA-2 choice was available as intended for RTTY.
Yet, the 'AFC' function was auto-activated again with the AFC Button greyed out, thus causing a permanent frequency offset 'runaway', without an obvious way to escape this issue. But as discussed in February, the issue can be permanently fixed by unchecking the 'Save parameters per mode per band' option and then restarting FLdigi. Kim Andrew Elliott has successfully started using one of your recent alpha versions for his SW Radiograms, after applying this trick.


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Finally, for a future new fldigi release, I'd like to repeat asking about my couple of improvement suggestions, which I had attached in the following e-mail:

Re: [winfldigi] New web hosting site for www.w1hkj
2025-02-04 at 18:32 [this timestamp probably is CET, not UTC or even your local time zone]



Thank you David and all the best!


73s Tobias
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commit 39f388baf4b364a4abedc366f7fc7d5d346aadb5Author: dave-w1hkj <w1hkj@...>Date:   Sat Apr 5 09:35:00 2025 -0600    Alpha          * version 4.2.06.27commit e4ed761d6e6fea3740d70654d5aff2722dcde225Author: dave-w1hkj <w1hkj@...>Date:   Fri Apr 4 14:06:16 2025 -0500    TTY ITA2          * allow user to select USTTY or ITA2 for Baudot shifted characters

fldigi 4.2.06.27 development version available for testing

Thank you David for your reply. Is this something that could be added in a future version of FLDigi?

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Regards,?

George?

The ITA2 character set is not a part of fldigi, but easily added (or substituted).? You would have to modify the source code file rtty.cxx and recompile fldigi.

Greetings,

?

I like to decode the Europe feed of news items as described at RTTY.com. Please see the attached picture.

?

The gentleman that is one of the go-to people on this replied to by question as to why apostrophe's are printed as <BEL>.? This only happens on the Europe feed and not on the ITTY feed (US news items).

?

Here is his response:

I suspect there is more than just this problem. I think + will print as “ and = will print as ;?

?

There may be a few others. This is because there are multiple standards for Baudot. The US uses USTTY and Europe uses ITA2.?

?

Everything on the Europe feed prints well on a European teletype machine because those printers are mechanically set up for ITA2. When I first put the Europe feed up, users in Europe complained that things were not printing correctly.?

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One complaint was that apostrophe was triggering the bell on their machines! This is what you are seeing in FLDigi. ?I originally had the Europe channel on USTTY and had to change it to ITA2

Interestingly, the apostrophe and bell are actually switched between the two code standards, so if I send a BEL, European machines will ring the bell but FLDigi will print an apostrophe! If I send an apostrophe, European machines will print an apostrophe but US machines will ring the bell.