w4kek/WSJT-X
1
0
Fork 0
mirror of https://github.com/saitohirga/WSJT-X.git synced 2024-11-25 13:48:42 -05:00
Code Issues Packages Projects Releases Wiki Activity

Update CMake project description for v1.8

Browse Source 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7871 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Bill Somerville 2017-07-14 08:47:55 +00:00
parent 40d9933701
commit c9dde2a278
1 changed files with 63 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

86
CMakeLists.txt
View File

@ -54,31 +54,71 @@ set (PROJECT_MANUAL wsjtx-main)
set (PROJECT_MANUAL_DIRECTORY_URL http://www.physics.princeton.edu/pulsar/K1JT/wsjtx-doc/)
set (PROJECT_SAMPLES_URL http://downloads.sourceforge.net/project/wsjt/)
set (PROJECT_SAMPLES_UPLOAD_DEST frs.sourceforge.net:/home/frs/project/wsjt/)
set (PROJECT_SUMMARY_DESCRIPTION "${PROJECT_NAME} - JT9 and JT65 Modes for LF, MF and HF Amateur Radio.")
set (PROJECT_SUMMARY_DESCRIPTION "${PROJECT_NAME} - Digital Modes for Weak Signal Communicaitons in Amateur Radio.")
set (PROJECT_DESCRIPTION "${PROJECT_SUMMARY_DESCRIPTION}
${PROJECT_NAME} implements JT9, a new mode designed especially for the LF, MF,
and HF bands, as well as the popular mode JT65. Both modes were
designed for making reliable, confirmed QSOs under extreme
weak-signal conditions. They use nearly identical message structure
and source encoding. JT65 was designed for EME (“moonbounce”) on the
VHF/UHF bands and has also proved very effective for worldwide QRP
communication at HF; in contrast, JT9 is optimized for HF and lower
frequencies. JT9 is about 2 dB more sensitive than JT65A while using
less than 10% of the bandwidth. World-wide QSOs are possible with
power levels of a few watts and compromise antennas. A 2 kHz slice
of spectrum is essentially full when occupied by ten JT65 signals.
As many as 100 JT9 signals can fit into the same space, without
overlap.
${PROJECT_NAME} is a computer program designed to facilitate basic amateur
radio communication using very weak signals. The first four letters in
the program name stand for `(W)eak (S)ignal communication by
K1(JT),` while the suffix `-X` indicates that ${PROJECT_NAME} started as
an extended and experimental branch of the program
WSJT.
.
${PROJECT_NAME} offers a “bi-lingual“ operating mode in which you can transmit
and receive JT65 and JT9 signals, switching between modes
automatically as needed. Displayed bandwidth can be as large as 5
kHz. If your receiver has as upper-sideband filter at least 4 kHz
wide, you can have all the typical JT65 and JT9 activity on screen at
once, available for making QSOs with a click of the mouse. Even with
standard SSB-width IF filters, switching between JT65 and JT9 modes
is quick and convenient. Be sure to read the online ${PROJECT_NAME} User's
Guide.")
${PROJECT_NAME} Version 1.8 offers nine different protocols or modes: FT8,
JT4, JT9, JT65, QRA64, ISCAT, MSK144, WSPR, and Echo.
The first five are designed for making reliable QSOs under extreme
weak-signal conditions. They use nearly identical message structure
and source encoding. JT65 and QRA64 were designed for EME
(`moonbounce`) on the VHF/UHF bands and have also proven very
effective for worldwide QRP communication on the HF bands. QRA64 has
a number of advantages over JT65, including better performance on the
very weakest signals. We imagine that over time it may replace JT65
for EME use. JT9 was originally designed for the LF, MF, and lower HF
bands. Its submode JT9A is 2 dB more sensitive than JT65 while using
less than 10% of the bandwidth. JT4 offers a wide variety of tone
spacings and has proven highly effective for EME on microwave bands up
to 24 GHz. These four `slow` modes use one-minute timed sequences
of alternating transmission and reception, so a minimal QSO takes four
to six minutes — two or three transmissions by each station, one
sending in odd UTC minutes and the other even. FT8 is operationally
similar but four times faster (15-second T/R sequences) and less
sensitive by a few dB. On the HF bands, world-wide QSOs are possible
with any of these modes using power levels of a few watts (or even
milliwatts) and compromise antennas. On VHF bands and higher, QSOs
are possible (by EME and other propagation types) at signal levels 10
to 15 dB below those required for CW.
.
ISCAT, MSK144, and optionally submodes JT9E-H are `fast`
protocols designed to take advantage of brief signal enhancements from
ionized meteor trails, aircraft scatter, and other types of scatter
propagation. These modes use timed sequences of 5, 10, 15, or 30 s
duration. User messages are transmitted repeatedly at high rate (up
to 250 characters per second, for MSK144) to make good use of the
shortest meteor-trail reflections or `pings`. ISCAT uses free-form
messages up to 28 characters long, while MSK144 uses the same
structured messages as the slow modes and optionally an abbreviated
format with hashed callsigns.
.
WSPR (pronounced `whisper`) stands for (W)eak (S)ignal
(P)ropagation (R)eporter. The WSPR protocol was designed for probing
potential propagation paths using low-power transmissions. WSPR
messages normally carry the transmitting station’s callsign, grid
locator, and transmitter power in dBm, and they can be decoded at
signal-to-noise ratios as low as -28 dB in a 2500 Hz bandwidth. WSPR
users with internet access can automatically upload reception
reports to a central database called wsprnet that provides a mapping
facility, archival storage, and many other features.
.
Echo mode allows you to detect and measure your own station's echoes
from the moon, even if they are far below the audible threshold.
.
${PROJECT_NAME} provides spectral displays for receiver passbands as wide as
5 kHz, flexible rig control for nearly all modern radios used by
amateurs, and a wide variety of special aids such as automatic Doppler
tracking for EME QSOs and Echo testing. The program runs equally well
on Windows, Macintosh, and Linux systems, and installation packages
are available for all three platforms.
.
Be sure to read the online ${PROJECT_NAME} User's Guide.")
set (CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/CMake/Modules ${CMAKE_MODULE_PATH})