10-06-2018, 07:05 PM
For those of you who don't often check for upgrades of software packages, just a quick note to advise that V1.9.1 of K1JT's WSJT-X is available for download:
https://physics.princeton.edu/pulsar/k1jt/wsjtx.html
WSJT-X implements communication protocols or "modes" called FT8, JT4, JT9, JT65, QRA64, ISCAT, MSK144, and WSPR, as well as one called Echo for detecting and measuring your own radio signals reflected from the Moon. These modes were all designed for making reliable, confirmed QSOs under extreme weak-signal conditions. All but ISCAT use nearly identical message structure and source encoding -- the efficient compression of standard messages used for minimal QSOs. JT65 and QRA64were designed for EME ("moonbounce") on the VHF/UHF bands; JT65 has also proved popular and effective for worldwide QRP communication at HF. JT9 is optimized for the LF, MF, and HF bands. It is about 2 dB more sensitive than JT65 while using less than 10% of the bandwidth. With either JT9 or JT65, world-wide QSOs are possible with power levels of a few watts and compromise antennas. JT4 and QRA64 are optimized for EME on the VHF and higher bands, and especially the microwave bands from 2.3 to 24 GHz. FT8 is operationally similar to JT65 but is much faster, using T/R cycles only 15 s long. MSK144 is used for Meteor Scatter on the VHF bands. Finally, as described more fully on its own page, WSPR mode implements a protocol designed for probing potential propagation paths with low-power transmissions. WSPR is now fully implemented within WSJT-X, including automatic band-hopping.
The current General Availability (GA) release is WSJT-X Version 1.9.1. A list of new features and enhancements since Version 1.8.0 is available here. One of the new features is FT8 DXpedition Mode, and to use it you must upgrade to Version 1.9.1.
https://physics.princeton.edu/pulsar/k1jt/wsjtx.html
WSJT-X implements communication protocols or "modes" called FT8, JT4, JT9, JT65, QRA64, ISCAT, MSK144, and WSPR, as well as one called Echo for detecting and measuring your own radio signals reflected from the Moon. These modes were all designed for making reliable, confirmed QSOs under extreme weak-signal conditions. All but ISCAT use nearly identical message structure and source encoding -- the efficient compression of standard messages used for minimal QSOs. JT65 and QRA64were designed for EME ("moonbounce") on the VHF/UHF bands; JT65 has also proved popular and effective for worldwide QRP communication at HF. JT9 is optimized for the LF, MF, and HF bands. It is about 2 dB more sensitive than JT65 while using less than 10% of the bandwidth. With either JT9 or JT65, world-wide QSOs are possible with power levels of a few watts and compromise antennas. JT4 and QRA64 are optimized for EME on the VHF and higher bands, and especially the microwave bands from 2.3 to 24 GHz. FT8 is operationally similar to JT65 but is much faster, using T/R cycles only 15 s long. MSK144 is used for Meteor Scatter on the VHF bands. Finally, as described more fully on its own page, WSPR mode implements a protocol designed for probing potential propagation paths with low-power transmissions. WSPR is now fully implemented within WSJT-X, including automatic band-hopping.
The current General Availability (GA) release is WSJT-X Version 1.9.1. A list of new features and enhancements since Version 1.8.0 is available here. One of the new features is FT8 DXpedition Mode, and to use it you must upgrade to Version 1.9.1.
Doug VK4ADC @ QG62LG51
http://www.vk4adc.com
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http://www.vk4adc.com
This Forum is only going to be as interesting as the posts it contains.
If you have a comment or question, post it as it may trigger or answer the query in someone else's mind.