Hi Rob,
Thanks for trying.
As announced, tonite there will be another series of shorter messages
taking a longer time, so the SNR will be much higher, more than 6 dB,
and also a k=21 mode will be used, which may help a bit as well.
What was your locator? If i remember correctly we are in about 6600 km
distance.
PS: Remember, there is a time offset to be considered when the TX
stations uses SpecLab to generate the signal. This is 0.3 seconds.
Anyway it is worth to vary the time offset by +- 5%, 10%, 15% of a
symbol length if there is unexpectedly no decode.
73, Stefan
Am 13.11.2018 14:14, schrieb Rob Renoud:
Stefan, Jay and LF,
I believe my EbNaut RX system is now operating as it
should after a night of end-to-end testing in the shack. I did not
finish testing in time to copy your second transmission.
Would you do another transmission, Stefan? Other
than K3SIW on the LoFER band, that I have yet to copy, there are
currently no other EbNaut signals that I am aware of for testing.
Tnx es 73,
Rob - K3RWR
----- Original Message -----
Sent: 11/13/2018 4:21:10 AM
Subject: Re: LF: Re: LF EbNaut tonite
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
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