Hi Richard, a 100 m high and 300 m long antenna... sounds like an expensive way to generate just 1 W ERP on MF ;-) I'd just love to have one, but I'd rather use it to expand my VLF capabilities. Rega
Hi Joe, even though the noise is less than ideal here, I'll will be watching and saving data for possible decodes. There's an updating spectrogram https://dl.dropboxusercontent.com/u/26404526/opds8.p
Got some pieces of carrier in the spectrogram, up to about 10 dB SNR in 1 mHz. Considering the carrier duty cycle (8.5 out of 15 minutes), that would have been about +15 dB in a mHz for a pure carrie
Hi Andy, Wolf shows a link to the WOLF source on his website: http://www.qsl.net/dl4yhf/wolf/wolf_source.zip The encoding and decoding process should be in the wolf.cpp file. Best 73, Markus --Ursprü
While were at it I recently missed the JT9 activity night, mostly due to the lack of a linear MF transmitter. For WSPR, Ive used a commandline tool (wsprcode.exe, or wspr.exe with -tx option) to enc
Confirming Tobias observation, same seen here after 22:15. 73, Markus Von: Tobias DG3LV Gesendet: Montag, 1. Februar 2016 22:43 An: [email protected] Betreff: Re: LF: MF: WSPR-15 this nigh
Quite unlike Roelof's fantastic screenshot, almost nothing from VO1NA was received or decoded here, apart from a few meager traces. There is also some uncertainty and drift my FiFi-SDR local oscillat
Hi Tobias, thanks for the picture! The weak signal 5 Hz below DL6II might actually have been mine. I had sent only two WSPR-15 sequences on 475805 Hz (5 Hz below DL6II), starting 22:00 and 22:15. I w
Hi Domenico, thanks for that! For me, this comes just at the right time to help me sort out potential RX stabilisation measures. Looks like you have a MONSTER signal here in the opds8 spectrum http
Your signal is almost noiseless here but as you can see my RX is still running wild. Anyhow EbNaut somehow managed to retrieve your message. Best 73, Markus www.carnevalediputignano.it ... have a goo
I think the Loran-C slave stations were officially called secondaries, possibly for political correctness. 73, Markus Von: Dr. Wolf Ostwald Gesendet: Freitag, 5. Februar 2016 06:41 An: rsgb_lf_group@
Since 8:32 I have a carrier on 8270.0025 Hz. If all works well, I'll run another EbNaut sequence starting 9 UT: Frequency: 8270.100 Hz, start time 9:00:02, 5 characters, 8K19A, 16 bit CRC, 10 second
Since 8:32 I have a carrier on 8270.0025 Hz. If all works well, I'll run another EbNaut sequence starting 9 UT: Frequency: 8270.100 Hz, start time 9:00:02, 5 characters, 8K19A, 16 bit CRC, 10 second
The EbNaut sequence went out as planned. It was followed by more carrier on 8270.0025, which is now nicely visible on Lubos' grabber. The VLF transmission will terminate at 11:25 to allow further MF
Recent local tests have shown that the drift of my FiFi-SDR can successfully be compensated by SpecLab. This has already worked well on Wednesday night, so obviously the rapid phase variations and ~
This afternoon, Domenico IZ7SLZ and Riccardo IW4DXW were both sending EbNaut, using alternate 15-minute slots on the same frequency 477.695 kHz. The six character messages consisted of their respecti
Thanks once again Paul for your outstanding work. It is great to see what you can make of such a feeble signal, so close to the ultimate SNR limit. Thanks also Lubos and Stefan for continuously runni
