w4kek/WSJT-X
1
0
Fork 0
mirror of https://github.com/saitohirga/WSJT-X.git synced 2025-06-14 20:42:25 -04:00
Code Issues Packages Projects Releases Wiki Activity

First cut at a Q65 release note

Browse Source
This commit is contained in:
Bill Somerville 2021-02-02 18:25:18 +00:00
parent 57bdb53aef
commit 1592a72880
No known key found for this signature in database
GPG Key ID: D864B06D1E81618F
1 changed files with 22 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
Release_Notes.txt
View File

@ -13,6 +13,28 @@
Copyright 2001 - 2021 by Joe Taylor, K1JT. Copyright 2001 - 2021 by Joe Taylor, K1JT.
Release: WSJT-X 2.4.0-rc1
Feb 3, 2021
-------------------------
WSJT-X 2.4.0 is a program upgrade offering a new mode called Q65. It
builds on the capabilities of the QRA64 mode to offer a flexible large
symbol alphabet, low code rate, mode with excellent characteristics
when used for EME on VHF through to microwave bands, and with
challenging weak signal propagation via iono-scatter and similar on
VHF bands. The Q65 mode carries the same 77-bit message payload as the
popular FT8, MSK144, FT4, and FST4 QSO modes. Q65 also offers a range
of T/R periods (15 second through to 5 mins) and tone spacings (up to
32 times the base spacing) suitable for adapting to required
sensitivity and various channel frequency spreading characteristics.
The Wide Graph plotter has a super-sensitive synchronization spectrum
capable of detecting signals below visibility on the waterfall plot.
The new synchronization plot combined with comprehensive a priori (AP)
decoding techniques and message summing and averaging over multiple Rx
periods should make use near the limits of extreme weak signal
operating better than prior modes in all appropriate situations.
Release: WSJT-X 2.3.0 Release: WSJT-X 2.3.0
Feb 2, 2021 Feb 2, 2021
--------------------- ---------------------