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OK Gary ,
A spectacular launch for the new system by any
standard , full data decode !
Yes , good point , the actual minimum decode level
is now slightly better than the first
versions , but OP2 s/n is about the same as wspr ,
so that should give a reference as the
original s/n was calibrated using
Fldigi and wspr as the benchmark, J came to
the conclusion that the levels where not realistic
and revised the calibration , using the
path-sim software.
If you subtract 8 dB , is that close to
the original level , if
wspr shows -34 dB to Opera ( and
Ros) -26 dB for the same conditions ?
OP8 is then -40 dB old money and OP32
is 49 ...
Interestingly that makes Opera
4H audio - 55 dB old money ...
Tempted to try 136 as well , I assume , A big
series inductor with the 500 tuner set up
would bring everything into resonance ... or at
least be a starting point ?.......but what of
the auto feed transformer , if thats
non reactive , then the frequency should not
change the 50 ohm Tx view ??
73 -G..
The eating of the pudding is in the
proof as they say after 2200 hrs , the first TA
decode was OP8 @ 3667 K , using a
Parasol-on-a-Stick MK1 back garden array Tx Ae
Sent: Sunday, April 22, 2012 7:03 PM
Subject: Re: LF: Re: UA4WPF G8HUH 2200m 3615 kms !
Graham, LF,
I have omitted the December 2011 decode of
VO1MRC on 136kHz with Op8 in the other direction giving a distance of
3667km.
Of course conditions would be very good then, not able to
compare the -20dB S/N due to changes in the way it is now
calculated.
73, Gary - G4WGT.
----- Original Message -----
Sent: Sunday, April 22, 2012 6:42
PM
Subject: Re: LF: Re: UA4WPF G8HUH 2200m
3615 kms !
Graham,
I bet your ears are still frying bacon
& rattling morse out :-)
Probably will be Op32, my nearest to that in Op8
is...
20:51 136 RW3ADB Op8 -34
dB 2553 km
..........-34dB being about the limit of Op8
73, Gary -
G4WGT.
Original Message -----
Sent: Sunday, April 22, 2012 4:39
PM
Subject: Re: LF: Re: UA4WPF G8HUH 2200m
3615 kms !
OK ,still recovering from listening to white
noise for 6 hours last night , once a year
is enough of this modern CW ,
vintage MGM-CW is far less of a frazzle
Assume that was OP32 at that range
?
Tnx -G.
Sent: Sunday, April 22, 2012 3:17 PM
Subject: LF: Re: UA4WPF G8HUH 2200m 3615 kms !
Graham,
Just a slight correction :-
>and check the 'spots only from' box,
Should read.....and un-check the "All Spots" box, you
will then have a local copy of band data.
73, Gary - G4WGT.
----- Original Message -----
Sent: Sunday, April 22, 2012 2:24
PM
Subject: LF: UA4WPF G8HUH 2200m 3615
kms !
All,
Opera 136 Up Date
Following on from the previous, some
interesting developments , on 136 , If your
station is web-linked , then in either
Rx only , Tx only or Tx/Rx
you will show on the
PSK-Reporting map, this was set to ensure
the status of both Tx and Rx stations
was available to all. after all one is no
use without the other !
As there is still no 'dedicated
storage' for the on-line data , If you wish
to monitor activity on a particular band ,
you can simply run Opera , set to the
required band and check the 'spots only
from' box , you will then have a
local copy of band data . some
stations have added text to the beacon 'test
only - no RF' or similar to prevent misinterpretation.
NB : These are full DATA call sign decodes ,
so are the bare minimal exchange
required to claim a qsl or qso for
1 or 2 way , Opera is purely based on Data
processing and Digital signal processing and has
'no' deep search or fuzzy logic decisions
to assist in the data recovery ,
similarly for the QSO option, allowing
15 Chrs to be send in 120 seconds at a
nominal -20 dB s/n (ref to Sim-Path
simulation software)
UA4WPF decoded by G8HUH 2200m OPERA 3615
kms 00:39:25
This seems to be OP32 mode , but
monitoring stations can run 'two'
opera sessions , from the same sound card/pc ,
set OP8 and OP32
JH1GVY recent Tx addition to the
JA group of 8 136 beacons regularly
showing on the psk map
Welcome activity from down under
Decodes over 24 hours
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