Hello Glenn, I think that you wish is already heard and fulfilled. The suitable mode is FST4. There are seven modes with transmission periods from 15 to 1800 seconds. The performance of the FST4-120 is about the same as for WSPR. For longer transmission periods transmitter frequency stability requirement is higher as the used bandwidth goes down. See user guide 17.2.10. Summary. Of course the (un)stability of the propagation path on 160m band may prevent usage of the slowest modes.
73, Reino OH3mA > -----Original Message----- > From: Glenn Williams via wsjt-devel [mailto:wsjt- > de...@lists.sourceforge.net] > Sent: Thursday, December 7, 2023 5:46 PM > To: wsjt-devel@lists.sourceforge.net > Cc: Glenn Williams <a...@alumni.caltech.edu> > Subject: [wsjt-devel] 160m S/N needs advanced mode > > Hello, > > FT8 on 160m pales. > > WSJT-X operators customarily running FT8 and FT4 on > 80m through 10m HF bands are likely disappointed with > trials on 160m. As one of those operators I recently ran > WSPR on 160m in comparison to working FT8 QSOs on > 160m. In NA EST daytime operation at 2220Z WSPR > faultlessly listed a > -28 dBm decode. > > Here I suggest we need an improved decode sensitivity > for 160m QSOs, likely needing to be done with a new > mode. Granted, the TX and RX times would have to be > increased (Shannon-Hartley Theorem). That would > require additional operator patience and associated > protocols for the extended timing. > > --73, Glenn, AF8C > > -- > This email has been checked for viruses by Avast > antivirus software. > www.avast.com > > > _______________________________________________ > wsjt-devel mailing list > wsjt-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wsjt-devel _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
