WH2XBA/1 [WH1XBA call used for OP/OPDS] starts at 2200 till at least 0700-0800. Tx Freq 29.499 and possibly with Dex WH4XBA couple herzt higher. Use OP2H mode on NEW 28 kHz program. Markus has posted
Mike; It is understandably difficult as you have started from scratch with this undertaking. It will come just a bit tougher than on 73 band! Bob > From: [email protected] > To: rsgb_lf_grou
Yes Markus, By some calculations, Bob’s signal is close* to being detectable 24/7 at Todmorden and often during daylight at your QTH, for the next two weeks or so. A 24-hour opportunity in Apri
Markus; Consider it done. Tomorrow and maybe again Sunday if you had unusual noise tomorrow. Will be home in hour or so to get OPH2 underway for tonight-Bob From: [email protected] To: rsgb_lf_gro
Markus; With you home [not at work] tomorrow lets try around that 1500. I left the signal on two nights ago till 1200 but after 0800 signal was gone till 2400 next night. What mode and what time you
Markus, I’m glad that you suggested a 2-hour time slot (if it works for Bob). Based on your NAA spectrogram (attached), the window that you’re shooting for may be a multimode interference
Markus, This is a welcome sight. Thanks to you and Bob. Was this detection made approximately ten minutes before Bob switched off? 73, Jim AA5BW From: [email protected] [mailto:owner
Congrats Markus! We will try again tonight-many nights on LF didn't get any detections! Bob From: [email protected] To: [email protected] Date: Fri, 7 Mar 2014 09:03:36 +0100 Subject: R
I ran SpecLab last night using (almost) the settings needed for 29kHz OPDS, and had some pleasing results. The attached pictures both show a good trace on Bob's frequency.: capt07-rev.jpg Shows the s
Markus; I closed at 0820 as I saw the signal went away at about 0700 on the Markus grabber. Had to be up early so couldn't stay on longer. Will stay on longer tonite-Bob From: [email protected] To
Bob and Markus, Thanks, this seems consistent with the shape of the late-night/early-morning amplitude characteristic in the LWPC simulation (for 43N, 75W to Todmorden) that Paul sent to the group on
Good luck with your transmissions tonight. I am not quite ready for OPDS but will have a spectrogram running. The good news is that I have found a sound card.that will take 96k sample rate. The bad n
Hello Warren, Rick, I was also experimenting on 6.47 kHz and 5.17 kHz. Best QRB on 5.17 kHz was 904 km at SQ5BPF. The S/N was about 20 dB in 4.5 mHz. See that link: http://www.lipkowski.org/~sq5bpf/d
Jim, I would think that the main difference between Todmorden and Nuernberg is that I'm into the sunrise dip an hour earlier. And my noise background is higher, so I tend to completely lose a weak si
Amplitude and phase of WH2XBA/1 from last night http://abelian.org/vlf/tmp/29499_140307a.gif Included a couple of hours before and after to show where the noise floor is. If the phase is anything to
Bob, how about a straight carrier on 29.499, from 14 to 16 UT? The narrow grabbers will be on even if I have to be away. Results may depend on the qrn situation here (aka Eu weather). 73, Markus From
Oh yes, I could be tempted ... but I won't ;-) 73, Markus From: Paul Nicholson Sent: Friday, March 07, 2014 11:10 PM To: [email protected] Subject: Re: LF: New OPERA OP/OPDS 2H tonight on
Here is the plot http://abelian.org/vlf/tmp/29499_140307b.gif Have I got the correct night there? We got a very sharp loss of signal at 08:00, I assumed you closed down. Some features repeat - - Mini
Last time I ran it http://abelian.org/vlf/tmp/lwpc140301a.gif the model did not converge from about 11:00 to 16:30 UT but perhaps I can tweak things a bit. When the entire path is in darkness, LWPC p
Just one detection here, but that makes it worth the effort: 2014-03-07 06:52:02 WH1XBA 6448km 29499.000Hz 1mHz -52.9dBOp 100% 15.3dB Out of the last four nights, this was the one with the highest no
