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FLDigi Newbie Question...

 

In the FLDigi receive window I often see text enclosed in open/close angle brackets such as <AS>, <AR>, <HM>, <VE>. What are these and where can I find a reference guide?
 

Try this
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73
Greg Sanders KE5DXA?
 

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Were you listening to CW (Morse code)? Two of the ones you've listed (AS and AR) are recognized Morse code prosigns. I'm not sure about the other two. They are sent as Morse characters as if the two letters were run together and sent as one. AS means 'wait a second' and AR means 'end of transmission'. There are lots more. Fldigi recognizes them and shows them inside angle brackets to distinguish them from the usual random letters you often see listening to Morse. For more info see the Wikipedia article on prosigns.

Bob W6CP


On 12/29/24 03:19, W9ARO via groups.io wrote:

In the FLDigi receive window I often see text enclosed in open/close angle brackets such as <AS>, <AR>, <HM>, <VE>. What are these and where can I find a reference guide?
 

Thanks Bob,
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I've seen it in both CW and RTTY, the only modes I've spent any time with. I've read about prosigns and abbreviations, assuming that's what they are. But, they seem to show up randomly and in places that don't make any sense to me, in the middle of a word or even a callsign. I've thought they were possibly typos, QRN, QSB, configuration/decoder errors, erratic keying (CW), etc.
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Recent example (CW),
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C? T V<HM>OZO V<HM> OZO V<HM>OZO K ) T T DE VE3OZO VE3OZO VE3OZO K T
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The default character for the <HM> prosign is "{" which would seem to rule out typo as it's a long way from "E3" on a qwerty KB. It's somewhat consistent in the example, "E3" is being decoded as "{" in the first 3 callsign instances but correctly in the last 3, which suggests a timing issue with sending.
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Trying to figure this out has at least made me more familiar with the program and hopefully continued use will eventually reveal the reason(s). Thanks again. -- Charles?
 

<HM> is E3 with bad spacing. 4 dits 2 dahs instead of one dit (space) 3 dits 2 dahs.
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John VA3KOT?
 

Thanks John,
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Is ¡°di di di di dah dah¡± Morse for ¡°{¡° character? I couldn¡¯t find in the tables handy. As the saying goes, ¡°timing is everything!¡± ¡ªCharles?
 

That looks much like what happens, when Fldigi is not initially set for the correct CW WPM speed for the incoming signal, but eventually figures it out for itself.

Check the two figures in boxes bottom left of the main window when in CW mode while it's printing garbage, and then gets sensible.? One you can set, the other it what it finds for itself.

73.

Dave G0WBX.

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Created on and sent from a Unix like PC running and using open source software:

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