Default selection is the loop-back interface. Users who require
interoperation between WSJT-X instances cooperating applications
running on different hosts should select a suitable network interface
and carefully choose a multicast group address, and TTL, that has
minimal scope covering the necessary network(s). Using 224.0.0.1 is a
reasonable strategy if all hosts are on the same
subnet. Administratively scoped multicast group addresses like those
within 239.255.0.0/16 can cover larger boundaries, but care must be
taken if the local subnet has access to a multicast enabled router.
The IPv4 broadcast address (255.255.255.255) may be used as an
alternative to multicast UDP, but note that WSJT-X will only send
broadcast UDP datagrams on the loop-back interface, so all recipient
applications must be running on the same host system.
The reference UDP Message protocol applications are being extended to
be configurable with a list of interfaces to join a multicast group
address on. By default they will only join on the loop-back interface,
which is also recommended for any applications designed to take part
in the WSJT-X UDP Message Protocol. This allows full user control of
the scope of multicast group membership with a very conservative
default mode that will work with all interoperating applications
running on the same host system.
Two new environment variables to control special testing behaviour:
* WSJT_TX_BOTH - set to "1" to force transmission on both periods.
* WSJT_REVERSE_DOPPLER - set to "1" to transpose Tx and Rx Doppler
corrections. Use this to test Doppler tracking on a terrestrial
link.
Use the -X command option to set single decode mode and to set the NB
level.
-X 256*(n+3)+s
Where s=32 selects single decode mode, and 'n' is the equivalent NB
setting as used in the WSJT-X UI. Default for both is zero in FST4(W)
mode if no -X option is passed. E.g. -X 544 selects single decode with
NB=-1 (256*(-1+3)+32).
The sent/received 'mode' parameter posted to WSPRnet.org has been
amended as follows:
WSPR-2: "2"
FST4W-120: "3"
FST4W-300: "5"
FST4W-900: "16"
FST4W-1800: "30"
this change is designed to maintain backwards compatibility with older
versions of WSJT-X and other software like WSPR-X which already post
these values:
WSPR-2: "2"
WSPR-15: "15"
It is expected that the WSPRnet.org server side will be updated in
sync with a WSJT-X v2.3.0 RC2 (or GA) release to account for this
change.
Version information and more in the Windows resources for main
applications, installer and un-installer.
Update CMake policies for new project() command, and DEB
dependency changes
Support older libgfortran packages, and other Linux package
dependencies.
Use new project description file in Debian packaging.
Linux packaging dependency adjustments for Debian style packages,
including a machine readable Debian copyright format, project
description in separate file for CPack compatibility, and use for
DEB packaging.
Configure check for need to link libm Standard C Math Library.
CMake compatibility for <3.17.
SWL mode hides all lower panel widgets, maximizing the size of the
decodes windows. Designed for operators running several instances to
monitor multiple bands and modes.
This is required so as to maintain good contrast between foreground
and background elements when the widget colour palette is changed,
e.g. when using a lights out style sheet.
Bill Somerville
Joe Taylor