Radiovibrations.com - >
Perseus Offsets
This is a site for users of the Perseus SDR receiver who want to measure exact frequency offsets from recorded files. Up to the current version 2.1f
(Sep 2009) it is not possible to calibrate the recordings within the software. So you need to calculate. If you know the receiver's offsety of
at least two frequencies you can calculate the rest. This little script makes it easier. I've already calibrated some of the public files, or you
can use the form.
Calibration tables for of public files
- Australia, Green Cape, 3-Nov-2008 1800 UTC
- Canada, Masset, BC Jan-2009 1700 UTC
- Canada, Pontneuf, QC, 2-Feb-2009 2200 UTC
- Finland, Joensuu 28-Jul-2009 2000 UTC
- Finland, Joensuu 24-Jul-2009? 1900 UTC
- Finland, Joensuu 16-Dec-2008 1300 UTC
- Japan, Chigasaki 12-Jan-2009 2100 UTC
- Germany, Handewitt 17-Feb-2009 03 UTC
- Germany, Freising, 22-Sep-2009 1732UTC
- Greece, Athens 25-Jul-2009 1900 UTC
- Greece, Athens 28-Jul-2009 2000 UTC
- Greece, Athens Jul-2009 2100 UTC (150-950 KHz)
- Greece, Athens Jul-2009 2200 UTC (900-1700 KHz)
- Norway/Svalbard, Kongsfjord 01-Nov-2008 1300 UTC
- Norway/Svalbard, Kongsfjord 10-Jan-2009 1430 UTC
- Norway/Svalbard, Kongsfjord 09-Jan-2009 1900 UTC
- Norway/Svalbard, Kongsfjord 26-Feb-2009 0600 UTC
- South Africa, Seefonstein, 31-03-2010 0400 UTC
- South Africa, Seefonstein, 31-03-2010 0500 UTC
- South Africa, Seefonstein, 29-03-2010 1900 UTC
- UK Nottingham (Faulkner) 3-Feb-2009 1400 UTC
- UK Scotland Ayrshire (Baird), 23-Jan-2009 2300 UTC
- USA, Central PA 03-Jan-2009 2200 UTC
the WAV files are available at
Individual calculation
Questions? Corrections? Ideas? Comments?
Mail me:
PeerAxel@aol.com
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