[GreenKeys] UGC-136BX on receive...

Michael Katzmann vk2bea at gmail.com
Mon Jul 28 13:56:52 EDT 2025


When receiving on the UGC-136BX, I am seeing an interruption (CR) if the
receive line is idle (at a mark)  for more than 9 seconds. The next
received character after the idle is printed but preceded by two LF
characters and "A.P." (The auto-print is set).

When receiving the text, the "rec unprt" light is on.

This is slightly annoying 8-)

e.g.

A.P.
THE QUICK BROWN FOX

A.P.
THE QUICK BROWN FOX


The manual (p3-5) says,
"If a message is received without an SOM or an unmatched SOM, the message
is determined to be unformatted and assigned an MPN equal to 0.
...
If the AUTOPRINT/NORM/MASTER CLEAR switch is in the AUTOPRINT position, the
received
messages are printed and then automatically deleted from memory."

I see no mention of the 9 second timeout though.

Is anyone else seeing this behavior?

Test....
   1. Send characters to the UGC-136BX
   2. Observe the text printed and the "rec unprt" illuminates
   3. mark continuously for 10 seconds - observe the "rec unprt" light
extinguish and the carriage returns.
   4. Send more text - observe two LF chars, "A.P.", CR + LF printed and
then the text.

cheers,
   Michael


-- 
   |\      _,,,---,,_             Michael Katzmann
   /,`.-'`'    -.  ;-;;,_         NV3Z / VK2BEA / G4NYV
  |,4-  ) )-,_. ,\ (  `'-'
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