> On Oct 26, 2018, at 2:21 PM, Jim Lill <j...@jimlill.com> wrote: > > What is the method to verify my system is indeed enjoying the 1 dB SNR > improvement that 2.0 gives? > > Thanks > > Jim > > WA2ZKD
Hi Jim, You might try turning on “Save All” and running for, say, 24 hours or even a couple of days. Then you can decode the saved batch of wav files using older versions of WSJT-X and with new versions, and compare the yield. Suppose that you want to compare the WSPR decoder in WSJT-X v 1.9.1 to WSJT-X v 2.0.0-rc3. 1. Run with Save All to save a large batch of wav files. 2. Delete ALL_WSPR.TXT. Start WSJT-X v 1.9.1 and use "File/Open" to select the first (earliest) wav file in the batch that you saved. This will cause WSJT-X to process that file. Next, select "File/Decode remaining files in directory" to process the rest of the files. When you have finished processing all of the files, ALL_WSPR.TXT will contain all of the decodes. Rename ALL_WSPR.TXT to something different, such as ALL_WSPR_1.9.1.TXT, so that it will not be overwritten or appended to by subsequent runs. 5. Make sure that you have moved ALL_WSPR.TXT to a new filename. Start WSJT-X v 2.0.0-rc3. Process all files. Rename your ALL_WSPR.TXT, e.g. to ALL_WSPR_2.0.0.TXT. 6. Use your favorite tools to compare the decodes in ALL_WSPR_1.9.1.TXT and ALL_WSPR_2.0.0.TXT. Here are some results that I obtained back in September: Bands monitored: 160/80/40/30/20/17/15/10 (these were monitored simultaneously, using my SDR setup) Start: 2018.09.13 0128 Stop: 2019.09.18 2046 Total 1.9.1 decodes: 45344 Total 2.0.0 decodes: 52126 (Number of 2.0.0 decodes) / (Number of 1.9.1 decodes) = 1.15 Thus, 2.0.0 increased the yield by 15%. Note that WSJT-X v1.9.1 contains enhancements that improve sensitivity over that of v1.8 and prior versions for highly coherent signals, as obtained on LF/MF and sometimes, on 160m. Thus, I would expect a somewhat larger yield difference if v2.0.0 was compared to v1.8. FWIW, the improvements in 2.0.0 are expected to increase sensitivity for all signals, regardless of how coherent they are. YMMV! Steve k9an _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
