|Subject:||Re: LF: New opds version|
|From:||Markus Vester <[email protected]>|
|Date:||Sun, 19 Mar 2017 15:58:26 -0400|
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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:
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
Von: Markus Vester <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Mi, 18. Jan 2017 15:02
Betreff: LF: New opds version
Dear opds users,
I have recently discovered a minor bug in opds2h5c which could sometimes produce systematic false detections from partial correlations after the end of a strong Opera signal. This has hopefully been fixed in version 2h6:
This version should be completely compatible with existing configurations and ini files, so all you have to do is start opds2h6 instead of opds2h5c.
BTW For the old 16-bit QuickBasic versions before opds2h5b, I had recommended to prevent CPU-load peaks by running the process at lower priority. This seems to be no longer necessary.
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