Hi Jay,
Thanks for the decode. Great work despite the QRN!
Regarding the other transmissions that failed to decode: Maybe it's not
a question of the SNR but rather the phase stability (of the
propagation path). Do you watch the showrawsyms.exe image?
Maybe it is an idea to use a shorter message, so it will decode at even
lower SNR, but still won't if its a phase issue. This may also be
helpful for others beeing farer inland, like K3RWR, or maybe K3SIW?
Do you like another session?
Tonite:
f = 137.620 kHz
Start time: 13.NOV.2018 21:00 UTC (hourly, until including 6 UTC)
Symbol period: 3 s
Characters: 5
CRC bits: 16
Coding 8K21A (!)
Antenna current: 4 A
Duration: 26:24 [mm:ss]
73, Stefan
Am 13.11.2018 04:10, schrieb [email protected]:
Stefan
Copy below. No decode prior to 0200 transmission ...
then BANG 0,0,0,0, rank 0. 'Crunchy' QRN condx here tonight. Tnx fer
the EbNaut 'workout'.
Jay W1VD
----- Original Message -----
Sent: Monday, November 12, 2018 2:44 PM
Subject: Re: LF: Re: LF EbNaut tonite
LF,
Another opportunity tonite:
f = 137.620 kHz
Start time: 12.NOV.2018 20:00 UTC (hourly, until including 6 UTC)
Symbol period: 1 s
Characters: 20
CRC bits: 16
Coding 8K19A
Antenna current: 4 A
Duration: 20:32 [mm:ss]
Markus, do you like to join? We could try a QSO with these settings.
Note the different TX frequency. It is outside the WSPR-2 band, but not
to far.
Unfortunately i cannot tune the resonance frequency because my coil
does not have a variometer coil at the moment. So i need to stay in
that range. 137.62 is just the resonance spot right now.
73, Stefan
Am 12.11.2018 13:52, schrieb Rob Renoud:
Jay and Stefan,
I attempted my first over the
air EbNaut decodes last night using two separate receive systems. All
appeared well but find that both instances of SL did not save the
entire wave file for each receive period but truncated it to about
165K. Will play with that today as have not experienced that in
previous end-to-end sessions in the shack.
Well done and thanks for
putting the EbNaut signal on the air, Stefan. Thanks for posting
yours, Jay, as it confirms I should have been able to copy all. Look
forward to another opportunity.
73,
Rob - K3RWR
Sent: Monday, November 12, 2018 1:34 AM
Subject: Re: LF: LF EbNaut tonite
Stefan
Copy of your message below. The message is not blacked out
since it was already available on Marcus's automated decoder. Nice to
see rank 0. Will be looking for Marcus next!
Jay W1VD
----- Original Message -----
Sent: 11/11/2018 2:01:37 PM
Subject: Re: LF: LF EbNaut tonite
PS: The message is transmitted from a SpecLab instance. So you need to
consider the +0.3 second time offset, which is relevant at that symbol
length. Furthermore there is some uncertainty if the transmission
starts at the exact second. It could happen that it starts 1 second to
late. We will see what happens.
73, Stefan
Am 11.11.2018 18:38, schrieb DK7FC:
Hi
LF,
I'd like to try some EbNaut transmissions tonite. Maybe someone is some
distance is interested to detect them?
Here is the program:
f = 137.465 kHz
Start time: 11.NOV.2018 19:00 UTC (hourly, until including 7 UTC)
Symbol period: 1 s
Characters: 21
CRC bits: 16
Coding 8K19A
Antenna current: 4 A
Duration: 21:20 [mm:ss]
Reports welcome.
73, Stefan
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