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Rik
Just about made a qso hi ..
my station not set for 500 sending with more
ref power than fwd hi , partial decode by Gary, however ,
looks like you need to capture the start sequence
to decode the frame ... the same as the HF modes ,
apparently it used a sudo-random code sequence overlaying the
data stream , so a simple de-code by position is not
possible .. one of the hf modes also uses this
system ..domino I think ?
G ..
Sent: Wednesday, April 28, 2010 9:49 PM
Subject: RE: LF: ROS 500kHz test beacon
Hello Gary,
I just downloaded and installed ROS.
After launching it I first thought it was a flight simulator ;-)
I got 2 solid copies at 20:32 and 20:38 (you attempting a QSO with G0NBD).
ROS gives only -29dB (almost on the red area) despite the fact that I can see
you signal with SpecLab in QRSS1 modus and when to QSB boosts up I can even hear
it. If I knew the coding it would be easily possible to decode it using the
SpecLab screenshot.
To have a better idea about how robust ROS is you would need to reduce
your ERP by several dB.
73, Rik OR7T - ON7YD
Hi LF,
I failed to state the frequency.
503.600 kHz.
Dial 502.050 kHz USB.
1 minute PTT loop.
73
Gary - G4WGT
On 28 April 2010 20:03, Gary - G4WGT <[email protected]> wrote:
Hi LF,
I will run ROS data mode again tonight starting now.
I will increase transmitter power a little to 5 watts making the ERP 15mW
estimated.
I will be in Rx mode also, reports & QSO attempts will be
welcome.
73
Gary -
G4WGT.
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