[DIGI] Release Candidate WSJT-X 2.7.0-rc7｜ほぼ時々　むせん見聞録

公開日 2024年10月1日　最終更新日 2024年10月1日 by JE2UFF_Toshi

おはようございます。日の出時間はすっかり遅くなりました。季節は確実に動いており、昨日は出勤時と帰宅時には既に暗くなっておりました。これから更に日照時間は短くなっていきますね。

さて、主題の通りWSJT-X-2.7.0-rc7がリリースされました。前回、CY9等で使ったSFMなど、弱いとデコード出来ない等いろいろな不具合が有りましたので、それらの対策をしたバージョンですね。

この改訂版では、SuperFox モードに多くの改良が加えられています。デコード機能の向上、メッセージのシーケンスの信頼性の向上、Fox 送信用のオープンソースの暗号的に健全な検証スキームなどとアナウンスされています。

rc7のリリースノートは以下の通りです。

WSJT-X 2.7.0 Release Candidate 7 brings significant improvements for
the new SuperFox mode. It introduces a new verification system which
replaces the previous one, and works for both the SuperFox mode and
for old-style Fox and Hound operation.  All code for SuperFox
operation is now open source.
  
IMPORTANT: OpenSSL v1.1.1 or higher is required for the real-time
verification of Fox and SuperFox messages.

Enhancements to the SuperFox decoder:

 - Performance of the SuperFox decoder has been further improved.

 - You can now set individual FTol values and tune the decoder to
   the exact sync frequency of the SuperFox signal if it is not exactly
   750 Hz. Both result in a better decodability in certain situations.

 - Important: The Rx frequency must be set close to the sync frequency
   +/- FTol, for example 750 +/- 50 Hz.

Introduction of a new Fox verification system:

 - The new Fox verification system uses one time passwords (OTPs), and 
   works for the SuperFox mode as well as for old-style Fox and Hound 
   operation. It can be enabled by the new OTP checkbox on the Advanced
   tab of the Settings dialog.

 - Fox or SuperFox stations send individual OTPs via radio. Hounds 
   automatically check the validity of the received OTPs in real time 
   from a server when there is an internet connection. Otherwise, the 
   validity can also be queried manually later. OTP verifications can 
   only be retrieved once the transmission has already taken place.

 - You may optionally display the received OTP values by checking
   the box "Show OTP messages".

 - If the Fox or SuperFox callsign is verified by receipt of the
   correct OTP, the background color of the Hound or Super Hound label
   switches to green.

 - Theoretically, DXpeditions can set up their own OTP server, however, 
   we recommend using the server at https://www.9dx.cc. 

 - Use of the new Fox verification system requires an OTP key. The
   system uses open source code and standard encryption
   technology. For testing purposes, non-verified SuperFox
   transmissions are now possible without a key.

Improvements to SuperFox/Hound operation:

 - SuperHounds must now first decode the SuperFox before they can
   call, and a QSO must be started by double-clicking on a SuperFox
   decode. (Note that calling the Fox blindly not only leads to
   unnecessary band utilization, but can also significantly reduce the
   QSO rate due to unanswered (Super)Fox replies.)

 - Switching to SuperHound mode automatically sets the Rx frequency to
   750 Hz. The previously selected frequency is saved and restored 
   afterwards.

 - Right-clicking on the H button now activates/deactivates SuperFox mode.

 - A flaw resulting in sub-optimal SuperFox QSO rates has been
   corrected.

 - SuperFox decoder now does a more thorough job of rejecting QRM from
   non-SuperFox signals.

 - Fields in the SuperFox payload not otherwise used in a particular
   transmission are now set to known nonzero values. Do NOT use RC6 or
   earlier versions to decode SuperFox transmissions from RC7 or 
   later.

 - Old-style Fox stations can now transmit free text messages (up to
   13 characters) by using an available stream.

 - Some enhancements useful for Fox operators: Active Station Window now 
   shows band activity. Hound callsigns can be highlighted via UDP API, and 
   assigned a score for sorting via UDP API. Fox Tx frequency is preserved 
   when switching in/out of Fox mode.

 - UDP Status Update messages now include information on how many callsigns
   have highlighting applied, and how many callsigns have a score assigned.

Other enhancements and fixes:

 - In FT8 mode, the Settings dialog no longer resets the VFO frequency 
   to band/mode default unless really needed.

 - Several code improvements specifically for macOS.

 - Updated CTY.DAT and Hamlib.

リリースノートを見ると、いろいろな部分で改良が加えられているようです。デコード能力が上がっているとのことですので、次回ペディで使用されたときには期待したいですね。