Ian, Sorry to see you go, but many thanks for your contributions to the art and your encouragement of others. May I call upon your expertise from time to time when trying to resolve weak signal and l
Fifty years ago, the rule for British English was that if the word derived from ancient Greek and had a zeta in the suffix it should use '-ize', otherwise '-ise'. Words with a sigma in the suffix wer
I seem to recall from an old version of Reference Data for Radio Engineers that transatlantic liners on 143 kHz could achieve a radiation efficiency of nearly 2% with their flattops slung between the
Hi, As there is an LF/VLF part to this activity, may I suggest you also post it (and anything similar) to [email protected] (I would have replied in French, but I am having problems with m
[...] I even thought of the PSU, which is stabilized by 5 times 3055. Is that cazy? No. If you get inexplicable behaviour in a piece of electronics and none of the obvious things cure it, check the
How much horizontally polarised skywave is there and how well does it propagate? Would it be worth constructing an aerial that favoured skywave? 73 John Rabson G3PAI To All from PA0SE, T In the compu
100kHz 73 John Rabson G3PAI Most boats throwing these antennas away since GPS. Anyone confirm Loran frequency. Hence the Inductance of these now two-a-penny devices?
Pages 50-52 of The Journal of the Communications Network for October-December 2003 has an article on "Realising a Quarter Wavelength Vertical Monopole at Low Frequencies - by Balloon". It describes a
Many thanks. Regards, John Rabson Commissioning Editor Cave Radio and Electronics Group Journal British Cave Research Association Tel: +44 (0)1394 460 298 Fax: +44 (0)1394 420 795
If I recall correctly, there is an ISM allocation slightly below 14 MHz which is used for RF heating. Some of the power oscillators I encountered did not have a very stable centre frequency and had a
And please advise the rest of us before doing it, as we want to be sure that Windows is properly shut down. John Andrews Then the universe never will come to an end. 73 John G3PAI
ROCK ON ! Bryan. I am also contemplating a box with little electric fires in tiny jam jars which screams out for modding to LF. p.s. The electronics looks easy but in which opening do I shovel the c
A few thoughts on why we are doing this: It seems well established that, if you (i) have enough real estate to put up a mast or masts of useful height and install a good earthing system and (ii) live
They previously used it from the Crystal Palace tx in London. John G3PAI ** REPLY SEPARATOR ** Hi LF Group, My memories of G9+++ call signs were the ones allocated to companies operating in broadcast
Congratulations, Joe and Frank. Let's hope you can stick some zeros on the distance in the coming season. 73 John Rabson G3PAI ** REPLY SEPARATOR ** Dear LF group, I am very pleased to report that Fr
Peter, If nobody else wants it, I can find space to store it. Other commitments (railway tunnels etc) mean I would not be able to do much with it until next spring, but I still have hopes of getting
BT is playing a key role in an initiative to deploy a navigational safety beacon around the UK, Ireland and the Atlantic. The company has won a contract to deliver a trial long range navigation (Lor
How diffiicult would it be to make a Loran gate to put in front of theRX? After all the station is fixed so you must, in principle, know when the pulses are due. The trouble is there isn't just one
When it comes to calculations, the most useful ability is not to be able to caculate it exactly, caculator or no, but to quickly be able to estimate a ball park answer or approximation. Who needs to
From the French language LF/VLF/ELF reflector. Would anybody like a translation? 73 John G3PAI Bonjour à tous, Activité intéressante ce matin sur 137500 Voici ce que j'ai pu copier en PSK08: {10}DF6N
