Of course Roman , can have funny wrong
call's any data mode will make those ,
more funny is people compare data
decoding with correlation detection and not
realise why correlation has lower s/n ,
and particularly hilarious is those who
know what's happening and don't tell anyone
.
Opera only deploys dynamic on 477/136 , the
HF to SHF are all simply data decodes,
where as the Magic Mode has mixed
correlation and decoding on all bands ,
which explains how it survives Doppler spreads 3
times its b/w on 10 MHZ and even works , some
times on vhf .. mfsk can be correlated , just the same
as ook , the time locking has more
to do with pattern matching, than decoding data
.
As some one pointed out , 'What ever colour the
cat , as long as it catches the mouse' just in
this case , the cat's out of the bag and it
turns out , there are more than one in there .
Graham I rx too mny false and fantoms in OPERA for long 3 years.
As usual this is not real calls.
That's interesting Luis ..one those . the
kings not wearing anything moment's
jiji
By the qrg 400k , this was a wspr
2 TX ?
So the only way Stefan's call
sign could be recovered is from the look
up table as part of a correlation process [ see
other linking posts]
Its IMPOSSIBLE for Opera
to produce such false Decode
But if you mean DYNAMIC Detection ,
has Ghosts , that's true for any
correlation system and the ghosts always take
on real life forms
However the Phantom , has provided a
Time stamp Ghost Buster
validation system . something wspr cannot as it
already uses the web for time locking , oddly ,
accurate time is required for a correlation
system ...
People are not too sure of the
difference between Decode and
Detection , but those who do , like
the extra dB's one gives over the
other
As I noted previously
''no one minds a bit of the 'Old
Jaspers' as long as its not take too seriously''
6 meters is known as the Magic band , may
be wspr should be the 'Magic'
Mode
73-G,
Sent: Thursday, September 03, 2015 11:28 AM
Subject: LF: RE: Odd sunset captures
Hi Mike,
MF
From my records
last night, DK7FC was transmiting in 06-16-26-36 ... periods,
but not at 23:04
The locator
shown in your decode is also wrong
The closest
frame to the time you decoded was at 23:06
2306 -21 -1.2 0.475684 0
DK7FC JN49 30
Not only Opera has its
ghost ! ;-)
PS: I'm QRV again. Back
from a 15 days vacation trip
73 de
Luis
EA5DOM
Hi All: I'm not sure what to think of
this....
I have been experimenting with IF shifting my
radio to get WG2XJM very strong signal 10 to 13 dB down the IF
bandpass
curve to improve weak signal reception of other
stations when Eric is transmitting. Odd sunset partial captures
appear
to be transatlantic, but I am not sure about
reality with this data. My EWE antenna was configured to favor a SE
direction, but with
120 degree 3dB beam width pattern it covers the
NE as well. Long distance transition zone propagation is a
possibility, but I
would be hesitant to claim it not having
received correct grid square information......
73, Mike wa3tts
