Hi Mike thanks for you observations this has added some support to my ideas that this is fading ......... not quite the same as the short period fading that normally involved the ground wave as one c
Hi Joe that correlates with some moderate level geomagnetic activity Dst -80nT comparedwith -30nT a couple of days ago. I shows the strength of the digital modes that a few years ago that would have
Hi Joe plaese be sending the cats bank account numbre and sort cod e so we may pay his inheritance :-)) Alan G3NYK Hi Markus (and thank-you to Chris, Urlich, Iban and Graham for reports/relays) Your
Hi Mal thanks for that observation, Yes daytime proagation can be enhanced a day or two after a geomagnetic storm due to the extra hot electrons precipitated from the ring current. These produce more
Mike I was about to ask if you had news ...... I met Peter and his wife on several occasions at Conventions at the Belmont and around the LF stands, traded a lot of ideas with him and had many privat
Hi Chris I dont think the relay type is too significant at these frequencies. The important thing is its contacts should be able to carry the current. It is at a low impedance point so the voltages s
Hi Andy Surely the voltage will not appear across the contacts, though I agree contacts to activating coil might be a problem. Yes reeds area problem because I think of the reed material. I only used
This is the problem we have come across with others. It is something to do with his ISP and the version of majordomo s/w the blacksheep server is running. There is no available administrator. I am af
Hi Chris I think any raising of the top-wire (loop) will increase the the vertical component slightly and the ERP is proportional to effective height squared. It also looks less obtrusive if higher :
Also Brian CT1DRP tramsmit phase locked DFCW from Porto using Andy's Synthersiser with RS-232 control, because I wrote the code in Power Basic for Windows, which Brian took a few bugs out of. The cod
Hi Wolf , Dave is one of my locals (I had coffee with him and some others this morning) The pcb was designed for those using the SDR-IQ as a microwave IF so the requirement were probably different to
This has just appeared on the time-nuts group but I have not been able to check it yet. It will be a bit of a shock to Trinity Ho. as they have a contract with Babcock Int for Anthorn until 2019 I th
Further Information gleaned from a TH NTM (notice to Mariners) dated 1st Dec 2015 that the French and Norwegian chains will cease operation on the 31 Dec 2015. It would seem little use Anthorn contin
Adding to what Paul says I have found that NEC needs to be treated with caution even higher in the LF range. Another thing to remember is that the skin depth at these VLF frequencies is quite signifi
That is how you put out such a good signal Stefan :-)) Any wire entering the foil is a way into the inside. Even the folds are not proof! currents which circulate round the edges of the foil can be i
Thanks Stefan. MMmmm interesting......the DST was stable at around -50nT and did not dip further on the CME on the 21st it was slightly above the value early morning on the 20th. The precipitation is
Hi Richard the thinking on permanent high erp beacons has for some long time on these narrow LF/MF bands is that they are not really needed now and if installed make receiving weak DX stations more d
Richard It would be a shame not to use those facilities. The area that may be useful is in providing another station that can fairly regularly be copied in the USA and say Japan. That might encourage
Andy Mike will probably be able to confirm, but my memory says it was Peter Dodd and Mike Dennison. They certainly did something like that but I am not sure if it was the first. Then there where a co
