Tnx - Mike
The reliable, true Deep Search reports (shown in green) included
SV8CS de SP5XSB, RN3AGC de 2E0ILY and RN3AGC de G0KTN, which are all
paths that would not have been reported without Deep Search.
More probable are various reports of LA3EQ's QRP tests overnight by
DL-SWL, though the report from RW3ADB may not be good.
See QRP work around to give local time stamp
A couple of times, a station was decoded by Deep Search, and then 10
minutes or so later were reported by the same station using regular
Op at a much higher S/N. This effect is also seen on OPDS.
Most likely are keying side bands being detected , with 40 + dB
range , signals well down on the main carrier , are detected as well
as the main , we first noticed this with wspr-2 on 500 , where
spots popped up 50 or 100 Hz off net due to hum on psu's , same
could be seen on spec-lab ...
Amongst the obviously false ones are SV8CS and 2E0ILY reporting
JA8SCD who claimed to be running very low power. SV8CS was also
reported by JA8SCD/1 but was not reported in Europe at the same time.
These should of been flagged ''??''
Just looking at a single night it appears that the current system of
red = 'probably not' and green = 'highly likely' (my description)
works well.
If its a loan Wolf decode , then the psk-map data base should be
able to give supporting data ,
if the TX beacon is logged then the time can be checked against the
'' stop +/- time''
73-Graham
G0NBD
--------------------------------------------------
From: "Mike Dennison" <mike.dennison@ntlworld.com>
Sent: Sunday, January 11, 2015 1:34 PM
To: <rsgb_lf_group@blacksheep.org>
Subject: LF: Opera true/false?
In the last 24 hours on 136kHz there have been several Opera decodes
flagged up with question marks (and shown in red), indicating they
need further examination to determine whether they are genuine true
decodes.
Amongst the obviously false ones are SV8CS and 2E0ILY reporting
JA8SCD who claimed to be running very low power. SV8CS was also
reported by JA8SCD/1 but was not reported in Europe at the same time.
A couple of spots of UA4WPF are unlikely, especially one by JA8SCD/1
over a daylight path.
More probable are various reports of LA3EQ's QRP tests overnight by
DL-SWL, though the report from RW3ADB may not be good.
The reliable, true Deep Search reports (shown in green) included
SV8CS de SP5XSB, RN3AGC de 2E0ILY and RN3AGC de G0KTN, which are all
paths that would not have been reported without Deep Search.
Just looking at a single night it appears that the current system of
red = 'probably not' and green = 'highly likely' (my description)
works well.
A couple of times, a station was decoded by Deep Search, and then 10
minutes or so later were reported by the same station using regular
Op at a much higher S/N. This effect is also seen on OPDS.
The only minor problem is that reports of your own signal are also
shown in red, which is slightly confusing.
So far, so good.
Mike, G3XDV
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