Re: [wsjt-devel] QSO impossible between compound call and /MM station ?

2021-12-11 Thread tmp1--- via wsjt-devel
Good evening all,

 

Thank you very much for all these explanations.

I was not aware this issue had already been discussed.

Sorry for having higlighted it again.

 

Enjoy the festive season.

God bless.

 

73

Philippe F5FDV

 


Envoyé: samedi 11 décembre 2021 à 10:13
De: "tmp1--- via wsjt-devel" 
À: wsjt-devel@lists.sourceforge.net
Cc: t...@gmx.fr
Objet: [wsjt-devel] QSO impossible between compound call and /MM station ?



 

Good day everyone,

 

I operate with the compound call sign ZS1/F5FDV when I am in South Africa.

 

I tried to contact YO4RYU/MM with the call sign in FT8 mode with WSJT-X v2.5.2 for Mac Big Sur.

 

The option Tx message to Rx frequency window is ticked. Auto Seq is ticked.

 

YO4RYU/MM responded to me but the only frame that the software could send on my side was  ZS1/F5FDV

 

I tried to select the reply messages manually but it was not succesfull.

Event if the proper selection seemed to be made on the display after I selected it manually, the same message  ZS1/F5FDV was displayed in the Rx Frequency box and send out.

 

Y04RYU/MM steadily sent his message  YO4RYU +02, which tends to prove that my message did not change from  ZS1/F5FDV despite his answer. I do not think this lack of progress in our exchanges was due to poor signal or QSB because the reports were quite good on both sides.

 

Your will find a screen copy attached.

 

73,

 

Philippe F5FDV

 

 

 

 

 

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Re: [wsjt-devel] QSO impossible between compound call and /MM station ?

2021-12-11 Thread Neil Zampella via wsjt-devel

I quote:  "The developers will not allocate the needed spaces in the
program to correct the issue. "

The issue has NOTHING to do with the 'needed space' in the program, and
ALL to do with the 77 bits of the data package being sent.    If it was
a simple change in the program it would have been done, but in order to
be able to send the entire data package twice within the ~13 second
windows,  the data is limited to 77 bits.   There is no additional space
available.    There was one change made to the FT8 protocol about 2 or 3
years ago moving from a 75 bit package to a 77 bit one.    That involved
having to revise the encoder/decoder and caused users of the older
versions of WSJT-X to upgrade to a new version.  Any further changes
to the data package would create a brand new protocol as it would no
longer be FT8.

This has been a limitation from the beginning, and has been noted in the
User Guide.  There is one more choice people have: make sure that
their 'lookup' pages on QRZ and the like are updated with their proper
location and grid, and create pages for /1, /2, /3, etc extensions with
other locations and grids for use if those normal extensions are
authorized for use by their governing bodies.

Neil, KN3ILZ

On 12/11/2021 8:19 AM, DX Jami wrote:

Philippe,

That is a known and common problem built into WSJT-X.  Compound calls
can not communicate with compound calls.  It is a real estate problem
within WSJT-X.  The developers will not allocate the needed spaces in
the program to correct the issue.  I understand that.  They want to
keep the WSJT-X program size small and simple.  I have the same problem.

You have at least two choices.
   1.  ignore the other compound-call station
   2.  if you really need that DXCC or station ... go into your set up
and change your call to a standard call.  You may have a problem since
you sometimes use ZS1 as a prefix.

Good luck.

    Danny
    AH6FX/W4 - Virginia

On Saturday, December 11, 2021, 07:22:22 AM EST, James Shaver (N2ADV)
via wsjt-devel  wrote:


Please take note of section 7.5 of the User Manual:
“ Angle brackets imply that the enclosed callsign is not transmitted
in full, but rather as a hash code using a smaller number of bits.
Receiving stations will display the full nonstandard callsign if it
has been received in full in the recent past. Otherwise it will be
displayed as < . . . >. These restrictions are honored automatically
by the algorithm that generates default messages for minimal QSOs.
Except for the special cases involving /P or /R used in VHF
contesting, WSJT-X 2.4 offers no support for two nonstandard callsigns
to work each other.”

Note the very last sentence in that paragraph.

73,

Jim S.
N2ADV





On Dec 11, 2021, at 3:29 AM, tmp1--- via wsjt-devel
 wrote:


Good day everyone,
I operate with the compound call sign ZS1/F5FDV when I am in South
Africa.
I tried to contact YO4RYU/MM with the call sign in FT8 mode with
WSJT-X v2.5.2 for Mac Big Sur.
The option Tx message to Rx frequency window is ticked. Auto Seq is
ticked.
YO4RYU/MM responded to me but the only frame that the software could
send on my side was  ZS1/F5FDV
I tried to select the reply messages manually but it was not succesfull.
Event if the proper selection seemed to be made on the display after
I selected it manually, the same message  ZS1/F5FDV was
displayed in the Rx Frequency box and send out.
Y04RYU/MM steadily sent his message  YO4RYU +02, which
tends to prove that my message did not change from 
ZS1/F5FDV despite his answer. I do not think this lack of progress in
our exchanges was due to poor signal or QSB because the reports were
quite good on both sides.
Your will find a screen copy attached.
73,
Philippe F5FDV
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Re: [wsjt-devel] QSO impossible between compound call and /MM station ?

2021-12-11 Thread Reino Talarmo via wsjt-devel
Hi Philippe,

See User Guide section 7.5. Nonstandard Callsigns. 
“Except for the special cases involving /P or /R used in VHF contesting, WSJT-X 
2.5 offers no support for two nonstandard callsigns to work each other.“

So it is by design. Unfortunately we don’t have enough bits available for that 
purpose in the current message fields. Some operators have used free text and 
somehow shorted callsigns to exchange enough information to indicate a 
successful QSO. E.g. dropping out “ZS1/” and “/MM” in some messages or such use 
those, hi! But it is manual way of making a FT8 QSO and both operators need to 
know what to send!

73, Reino OH3mA



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