Hi Stepan ... Good idea this FSK pattern applied to the carrier freq. This remind me several years ago at 13.55MHz or so, a segment called HiFer (there was lowfer/medfer too) ... was funny detect NA
The carrier is right now audible and visible on a battery powered portable SDR (Reuter Pocket) with just a small active ferrite antenna. 73 Clemens DL4RAJ
Many thanks again also to Rik, Ian, Stefan, Mauro, Ewald for your fine observations and suggestions, both on behalf of Ralph and from myself. I can say that we are overwhelmed by the number of positi
Hi Marcus, this is really exiting! Up to now, the only proof is the +0.411 Hz offset of Ralph's carrier frequency. Given receiver uncertainties, we can currently only reference it to the swinging-the
​​Hello Markus, FSKing the carrier a few Hz would be easy to implement and easy to detect. One option would be DFCW another would be WSPR. For both you would need no more than arduino boa
Morning from Alaska - I was a little late in shoving the North bound beam over the pole and taking a look at 1476kHz - We have numerous co-channel stations on Oz, China, Indonesia and Russia and I tr
Thanks Laurence - another long shot ;-) How accurate is your frequency readout? Seems like MW broadcasters are hardly ever exactly on frequency. The "thermostat swinger" came in up about 1 Hz low in
Hi Makus - Its refd to GPS so pretty close... I put on the HP3336B and checked against two gps disciplined 10MHz refs and both came up the same. The LF carrier one is quite a "noisy" swing - so maybe
hI ... The thermostat swinger is "strong" in a Vietnam KiWi SDR Propagation not ok tonight, no signal from this "reference" here now ... I have 3 carriers detected, all stable and close to center fre
Hi Marcus, yes a GPS 1 Hz comb would surely help. Iran is currently moving between +259.2 and 259.5 Hz, and might be useful to identify the right 1 Hz harmonic. The "swinger" stopped oscillating afte
Hello Markus, FSKing the carrier a few Hz would be easy to implement and easy to detect. One option would be DFCW another would be WSPR. For both you would need no more than arduino board (or someth
Hi Markus Well the time I logged in to this RX the map still showing the RX was in the dark area. May be I express myself in a wrong way, I meant that at this receiver an erractic carrier was stronge
Marcus, thanks for the uploads. The strong carrier seems to be the drifting one which used to be the swinger, and it is also visible around Ralph's line on http://df6nm.darc.de/mf/1476kHz.jpg . In yo
PS: Argo "QRSS 90 slow" may be even better. 73, Markus --Ursprüngliche Mitteilung-- Von: Markus Vester <[email protected]> An: rsgb_lf_group <[email protected]> Verschickt: So, 11. Nov.
OK, may be the version I'm using have only 30/60/120 so I set it to 120 normal, 10 minute ticks. Now 1:45 UTC ... the "sw inger" seems to vary across Ralph's line. The link to 1476.jpg on your site i
Hi Marcus, yes http://df6nm.darc.de/mf/1476kHz.jpg should have auto-updated every hour, except that unfortunately my PC stalled shortly after 4 UT. The slow Argo is helpful. Comparing your 4:34 UT sc
Hi Markus ... Yes, I'll try next days assuming that the TX will be on using 1Kz on/off pattern or even with regular modulation relay as explained before. But don't worry abt a paralell harness to hel
