Hi all, it is a while since this came up last, but I am sure I have seen a ground conductivity map for the UK somewhere. Has anyone a reference to it they can give me?? This is a query from a friend
Hi John that is interesting because the Sun is relatively quiet as is the Geomagnetic Kp index. The Dst is also quite high (-10nT) indicating firly depleted Ring currents. This doesnt prove anything
Hi Roelof it's been very quiet geomagnetically..... the Dst stands at -10nT for several days ....it dipped to about -25nT this morning but is climbing back....I dont expect that to be significant. Al
Hi Markus there has been a lot of discussion on the time-nuts group [email protected] on 60Hz frequeny accuracy across the US.. There are web sites which publish plots of the variation. I am afraid
Hi Markus Ah I though I remembered seeing something ........I think the thread was earlier this year .....Try 60Hz in the search field. They get misty-eyed about Loran too :-)) Alan G3NYK -- Original
Hi Roelof, interesting comment...... the Dst has been down in the -40 to -50nT during that period. That level does not usually have a big effect but it is obviously enough to "take the edge off" the
Hi Wolf interesting comparision, Joe may be two-hop to J-P but need three-hop to you, We in the UK always used to get East Coast signals stronger than you in Germany. As Roelof indicates there was a
Hi Laurence Yes it doesnt look bad enough for a "wipeout" but it certainly seems to depress received levels...more on the higher hop counts. Alan -- Original Message -- From: "Laurence KL7 L" <helloz
Hi Roelof, yes the geomagnetic acrivity does tend to peak about 12 to 18 months after the SSN cycle peak. The decay after activity is a diffusion process (concentration driven) so its a bit like disc
Hi Roelof, at night that is probably two hop for the main path though there will be some one-hop in the mix. Max LF/MF range upper D-region/lower E-region say 100km altitude is about 2500km by simple
Hi Roelof, I had not registered the time.....it is possible that two hop and the one hop (which is possible, the range is extended by diffraction/scatter at the ends, so somewhat attenuated) may be i
Hi Edgar nothing out of the ordinary Noaa have updated the web site Start here http://www.swpc.noaa.gov/ Alan G3NYK -- Original Message -- From: [email protected] edgar To: rsgb_lf
Hi Edgar this is alwaysa difficult call, unless you have some form of signal in the waterfall that is really constant and able to be used as a "calibration"/confidence boost. I remember collecing dat
Hi all there has been discussion about Aerial Current measurement on many occassions in the past, and many have built versions of the "Clothes Peg" clip on ammeter. Dave Powis G4HUP announced a kit f
Hi Laurence.....a bit odd ?? I presume your ground is frozen hard now so winter ground loss. Just a silly thought I wonder because a lot of your noise is from 30 to 50km if the mat is reflecting nois
Hi Laurence I was musing that the moving auroral fields would induce circulating currents in the closed loops of the mesh ......(that is after a small tot of Asbach in my bedtime hot chocky !!) and m
Sadly it is all about money these facilities are expensive to run. Mast maintenance and insurance for LF alone is frightening without the electricity bill, and the value of the real estate. There was
Hi Paul and Dex Great work, well done!! It is nice to see that the frequency will carry information rather than just allow identifiction. Best wishes Alan G3NYK W4DEX achieved another 'first' recentl
Hi Graham I doubt the greyline has much to do with it. The ionosphere at 50km is prob still illuminated but only by a weak winter sun.and 760mile is a short hop (~1000km) quite possible for daytime.
