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Re: LF: WSJT-X v0.5 r2786 - exit after message editing

To: <[email protected]>
Subject: Re: LF: WSJT-X v0.5 r2786 - exit after message editing
From: "Markus Vester" <[email protected]>
Date: Fri, 30 Nov 2012 00:11:01 +0100
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thanks a lot for this explanation, this has made it clear for me. I had erroneously assumed that one could mix structured content and free text in one message, now I understand why it must be either one or the other. Still need to aquire some of that familiarity ;-)
73 and best wishes,
Markus (DF6NM)
PS In my opinion a software bug cannot be embarassing, it's more a positive indication of progress - which we've seen a lot of lately!

From: Joe Taylor
Sent: Thursday, November 29, 2012 8:57 PM
Subject: Re: LF: WSJT-X v0.5 r2786 - exit after message editing

Hi Markus,

I have fixed the strange bug you reported.  It will be OK in the next
release.  I should have responded also to the question you posed:

> ... I'm often unsure about what is a predefined token and what is
> freetext. For example, I ran into the 13 character limit after
> editing a report into into something like "DK7FC DF6NM R +14".

"DK7FC DF6NM R+14" (with no space between "R" and the following number
and optional sign) is a properly structured JT9 message.  It will be
sent in compressed form: 28 bits for each callsign, 15 bits for the
grid-or-report fiels, and one bit to indicate it's a structured message:
28+28+15+1 = 72 bits in all.

"DK7FC DF6NM R +14" is not a properly formatted structured JT9 message,
because of the space between "R" and "+".  It is therefore truncated to
13 characters and sent as free text.

These kinds of issues are what is meant in the (temporary and brief)
WSJT-X User's Guide when it says things like "This document assumes that
you already have some familiarity with WSJT."

We'll get a properly complete User's Guide in shape, before too long.
In the meantime, if you have questions please ask!

-- 73, Joe, K1JT

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