[RTTY] [N1MMLoggerplus] 2Tone update released

[Jeff AC0C]

Thanks David for your continued work on this project!

73/jeff/ac0c
www.ac0c.com
alpha-charlie-zero-charlie



From: mailto:N1MMLoggerplus at yahoogroups.com 
Sent: Thursday, November 17, 2016 2:20 PM
To: rtty at contesting.com ; N1MMLoggerplus at yahoogroups.com 
Subject: [N1MMLoggerplus] 2Tone update released

  

I have just uploaded a new version of 2Tone. It can be found here: https://groups.yahoo.com/neo/groups/N1MMLoggerplus/files/G3YYD/


And no doubt Don (thank you) will upload it in due course to:


http://www.rttycontesting.com/downloads/2tone/


This new version fixes a few minor items but the big one is it will now look for character strings that are repeated and combine the analogue data together to provide an output that has a lower probability of error. To distinguish this synthetic output from what was actually decoded its output is surrounded by curly {} brackets, e.g. { G3YYD }. Occasionally, it will get the matching wrong and give a false output. It is possible to turn this off see the documentation that comes with the upgrade.


In the recent WAE RTTY contest two stations in the UK found that in 4% of their QSOs that this new system saved asking for a repeat. The normal repeat request rate is 8% of QSOs. A 50% reduction is very worthwhile.


It does however require that the sent information is correctly formatted, which it is in most cases. The format required is for the repeated characters to be at least 6 RTTY characters long and surrounded by space characters. Examples of this are, the quotes are for clarity: “ G3YYD G3YYD “  or “ DAVID DAVID “ or “ IO92NQ IO92NQ “. However  “ ED ED “ will not work too short or “ DAVID DAVID, “ will not work comma after 2nd DAVID. “ M7T M7T “ will work as the figure shift, letter shift and a space character make it 6 RTTY characters.


It is not just for contest, it also works for everyday QSOs. Just make sure when sending you name, QTH etc to apply the rules as above when setting up the macros.


73 David G3YYD aka M7T in contests

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Posted by: "David G3YYD" <g3yyd at btinternet.com> 
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