Moving on from opds2h5c to opds2h6 a couple of months ago has indeed significantly reduced the number of false positive detections on my LF opera monitor, with no apparent loss of sensitivity: http://www.df6nm.de/opera/opds.htm . However with default settings, partial correlations to strong real Opera signals can still occasionally lead to false spots on an adjajent frequency. This can be fixed by adding a line to the opds.ini configuration file:
 minpeakspacing=200
allowing opds to associate any spurious peaks within 200 FFT bins (~ 0.09 Hz at LF) to the original signal.
 
Some opds users are still using Dropbox to upload their results. Due to a recent policy change regarding the Dropbox public folders, these will no longer be uploaded to the web, and any links like dl.dropboxusercontent.com/... etc. are now going into digital Nirwana. I have replaced Dropbox by FTP to my webspace. The FTP transfer can be automated by adding a line to cleanup.bat like

@ftp -s:ftp_opds.txt >ftp_log.txt

and preparing an ftp.txt command file containing something like
 
open <myftpserver>
<myaccount>
<mypassword>
cd opds
bin
put opds32.txt
put c:\spectrum\opds32.png
bye

Best 73,
Markus (DF6NM)


-----Ursprüngliche Mitteilung-----
Von: Markus Vester <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Mi, 18. Jan 2017 15:02
Betreff: LF: New opds version