Hello Roelof, What about NDB signals from the southern hemisphere? How are they affected? Do you know (and receive) some from VK? May be a stupid question but i have no experience about NDB reception
Hi Roelof, very interesting! I am always hesitant about extrapolating the results I have for 139kHz up the frequency range. It would seem from your comments that the attenuation may be higher (TF & S
Dear Group, A quick note of gratitude for Alan for his erudite and entertaining contributions to this newsgroup on propagation... Much appreciated! 73 Joe VO1NA This electronic communication is gover
http://www.nasa.gov/mission_pages/sunearth/news/News030712-X5-4.html http://spaceweather.com/ I imagine that it will take LF a while to recover from this! Time to get on vhf and work aurora propagati
Hi Jay thanks for the confirmation.....:-)) Also the VLF effects, I have never been quite sure of the effects down there.....but they should be similar. I wonder whether the beacons will throw up any
Hello Alan, In the NDB band the effects were rather dramatic. Propagation from Scandinavia was very poor/non-existant. Even close by stations e.g. from Poland were much weaker than usual. One of my p
Hi all more geomag storming this morning. It looks as though I might have got my timing wrong. However the 56 hours to the Kp=7 event is a bit slow for such a big event, and the predicted speed of th
Date: Fri, 9 Mar 2012 15:19 +0000 (GMT Standard Time)
The last time I decoded WE6XGR was Tuesday 6th when he was running WSPR - as Graham said nothing last night with Opera or the previous night (Wed 7th) either. Trevor G0KTN
Hello Alan, For further "experimental data", on 518 kHz NAVTEX only stations from the north at a distance below 1000 km were received last night. Norlandet at 1374 km away, did not appear at all, whe
Hi Alan, Many thanks for the detailed analysis - your reports are one of the reasons for me to stay subscribed to this reflector. Have a nice weekend all, Wolf . Am 09.03.2012 11:57, schrieb ALAN MEL
Thanks Trevor, thats quite a big hit as Warren is a big signal. Still maybe 3 hops could be an extra 36dB so maybe not too surprising. Thanks for ALL the comments....they are very much appreciated. A
Graham and Group, For those of you still interested, VX9MRC continues on Opera4 on 507.77 kHz. As always, reports are most welcomed. 73 Joe VO1NA This electronic communication is governed by the term
Hello Roelof, Thank you for the answer and interesting insight in NDB hunting. I wil ltake the challenge to VK and am already having daily skeds with the VK1SV grabber. Just started the TX. The band
It looks like 600M took a real hit from the CME. Where I would normally have two pages of copy on my Navtex monitor, I had less than half a page when I checked this morning! Listening on 75M I though
Hello Stefan, As far as I know, reception of Australian NDB's in Europe is yet to happen. I have received China, Japan, Taiwan and Bangkok on 518 kHz NAVTEX, but this is quite rare. Reception from ND
Alan Thanks for the update and insight. Absolutely no trace of Stefan's signal in CT last night. A few nights back he was 25+ dB s/n (in 28 mHz). Long distance VLF signal levels below normal as well.
Hi Jay, Yes, the sferic propagation on VLF is affected as well. I can see quite low noise background levels arround the dreamers band. This may even be an advantage for the VLF experiments since we c
Alan, WE6XGR 500 khz Opera decoded on the west coast , no decodes showing on the psk-map into EU last night . G. N1GKE 600m OPERA 289 miles 05:02:51 K3SIW 600m OPERA 580 miles 04:58:45 AC4IU 600m OPE
Ok Alan Bob has run Op on 500 a few time's, will see if he has decodes from previous runs , last night was using the 0 timer option , which gave 100% tx time with a 4 min tx cycle. no change to the p
