QSD, QLF? John F5VLF On 9 Feb 2011, at 22:46CET, Andy Talbot wrote: http://www.facebook.com/l.php?u=http%3A%2F%2Fwww.zerobeat.net%2Fcq_serenade_en.mp3&h=c40bf 'imr
Roger, Yes, this is the place to tell people about VLF work. Although the title of the reflector refers to LF, there is a lot of traffic about 500 kHz, and other frequencies when relevant. As these i
Mal, I didn't mention sea/ocean divers. Most cavers try to keep their heads above water when underground. Only a small number take aqualung or similar gear with them to do things underwater. John F5V
LF, Thank you all for your comments and suggestions. About 50 years ago I was thoroughly trained in workshop practice by Standard Telephones & Cables. One of my mentors was G3HJL. He made sure I lear
Mall, I agree with you. Ideally one should have a fixed antenna for transmit. In practice this is not always possible and, even when it is, one cannot always choose the ideal site. In many ways, amat
Some years ago, we tried using a small loop to couple a Heyphone (4 W output on 87 kHz) into a running rail in a disused railway tunnel in the English Midlands (we had permission from the owners of t
I replaced it with a Philips Genie WW287 light which did not seem to generate any noise. The other low energy lights in the house are General Electric E27-ES 11W bulb types which are very slow to get
Wolf, Thanks for the info. We have a branch of Aldi in the nearest town. I will see what they offer. 73 John F5VLF On 2 Mar 2011, at 18:56CET, wolf_dl4yhf wrote: Just my few pennies worth: If you nee
On 10 Mar 2011, at 11:06CET, Stefan Schäfer wrote: While it is trivial to do a QSO on 20m in 10000km distance it is something special to reach 10km on VLF or on Laser-TX or 47 GHz and above. A VLF x
Some G7 and G9 calls were issued for a variety of purposes in the 1950s and later: G7xx (two letter suffix only) used by marine radio colleges and also for some high Arctic expeditions (G7AA and G7AB
YI Mal? Didn't know you were a Geordie. John F5VLF On 8 Apr 2011, at 12:17CEST, mal hamilton wrote: Checking HF/MF antenna and loose rivets on a DC3 before take off at Habaniya/Iraq 1956 MAL/YI2DX <1
Jurgen, What are the maximum and minmum frequencies? How many data points? What accuracy is needed? Is it a 2-terminal network or some kind of filter? 73 John F5VLF On 6 Apr 2011, at 09:04CEST, Jurge
Many thanks, everyone, for your comments and advice. It looks as if the SDRIQ is the way to go. I now have to consider the best computer unit to go with it. At present I have a choice of a Mac Book P
