Stefan,
Very nice - thanks for you detailed reception reports for the hours between 00:00 and 06:00 and, of course, the decode at 03:00.
I believe the tests have shown that EbNaut may well be a viable QSO mode for LF and that my TX station is working well. Implementing RX capability for EbNaut is my next goal.
In the mean time, do you see a need to continue with further EbNaut Trial transmissions from my station? I would be happy to do so but, of course, the hard work is on the RX side so I’ll defer to your suggestions.
Best 73 and thanks to all for the reports and decodes, Rob - K3RWR
Hi Rob,
Decoded your message here in Heidelberg, JN49IK from a small active E
field antenna. See attachments.
Some details:
| TX begin /UTC |
SNR / dB in 289 µHz |
carrier phase |
Eb/N0 [dB] |
|
| 00:00 |
20.64 |
-18.6 |
-1.7 |
|
| 01:00 |
17.44 |
-4.3 |
-4.9 |
|
| 02:00 |
13.32 |
44.3 |
-9.0 |
|
| 03:00 |
26.35 |
-87.3 |
+4.0 |
Decoded! |
| 04:00 |
18.29 |
16.6 |
-4.0 |
|
| 05:00 |
15.69 |
-40.7 |
-6.6 |
|
| 06:00 |
0.99 |
-42.6 |
-21.3 |
|
Congrats to that 30 chars message over a > 6000 km distance.
73, Stefan
Am 25.03.2018 16:57, schrieb Rob Renoud:
LF EbNaut,
Per DK7FC’s proposal, I have started LF EbNaut Trial #2 running a 30 character EbNaut message as follows:
Start Time: Currently Running
Stop Time: To Be Determined
Frequency: 137.395 KHz
Code Rate: 1/8 K=19
Symbol Period: 2 seconds
CRC Bits: 18
Characters: 30
Text: K3RWR_EBNAUT_LF_TRIAL_MAR_2018
# of Signal Bits: 1728
Duration: 00:57:36:00
Transmissions Repeat on the Hour
Power: 1W EIRP
Reports & comments welcome
73,
Rob - K3RWR FM18qi
<rawsyms.png>
<K3RWR_30char_LF.png>
|
