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Hamlib conflates mode and bandwidth which sometimes make it impossible to change mode without forcing a bandwidth change. Unfortunately Hamlib has no bandwidth value that is documented to leave the bandwidth as is, despite this being easy to implement. Many Hamlib rig back ends do interpret RIG_PASSBAND_NORMAL as "don't explicitly change the bandwidth". Some rigs like the Tentec Jupiter have a widest bandwidth of 8kHz which is larger than desired for this application so the old behaviour of setting the default wide bandwidth is not very friendly. Also many rig back ends in Hamlib do not do the required bandwidth setting correctly due to the CAT protocol having no way of discovering user defined bandwidth allocations. Merged from wsjtx-1.4 branch. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@5151 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
__ __ ______ _____ ________ __ __ | \ _ | \ / \ | \| \ | \ | \ | $$ / \ | $$| $$$$$$\ \$$$$$ \$$$$$$$$ | $$ | $$ | $$/ $\| $$| $$___\$$ | $$ | $$ ______ \$$\/ $$ | $$ $$$\ $$ \$$ \ __ | $$ | $$| \ >$$ $$ | $$ $$\$$\$$ _\$$$$$$\| \ | $$ | $$ \$$$$$$/ $$$$\ | $$$$ \$$$$| \__| $$| $$__| $$ | $$ | $$ \$$\ | $$$ \$$$ \$$ $$ \$$ $$ | $$ | $$ | $$ \$$ \$$ \$$$$$$ \$$$$$$ \$$ \$$ \$$ Copyright (C) 2001 - 2014 by Joe Taylor, K1JT. WSJT-X 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. WSJT-X 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 WSJT-X User's Guide. Project web site: http://www.physics.princeton.edu/pulsar/K1JT/wsjtx.html Project mailing list (shared with other applications from the same team): https://groups.yahoo.com/neo/groups/wsjtgroup
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This a mirror of WSJT-X and will be updated every 6 hours. PR will be ignored, head to the SF link. Repo will be updated at 06:00:00 UTC 12:00:00 UTC 18:00:00 UTC 00:00:00 UTC Now fixed.
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