Some years ago one of the British Telecommunications journals (POEEJ/BTTJ/IBTE/TCNJ - I forget which name it was using at the time) had an item about a low-loader mounted LF/VLF station which had a r
I have received the following request from G4AEE of the Cave Radio & Electronics Group Journal editorial team: [We wish] to include an article on what radio amateurs are doing at VLF now that allocat
I am preparing a short article for the Cave Radio & Electronics Group Journal about current amateur radio work below 9 kHz. Has anyone a photograph of a loading coil or an antenna system that we coul
Perhaps you could have temporary access when the official use has ceased. I remember the tests from the DECCA site at Puckeridge. John F5VLF/G3PAI Attachment: signature.asc Description: Message signe
This brings back memories of traditional jazz programmes in Europe in the 1950s and 60s. I picked up most of the German I know from listening to Jazz Mit Joe (Abrach) on the BBC German service (232 m
How about Time Encoded Speech? In one version you analyse the input waveform segment by segment and compare each segment with a library of templates. You then send the ID of the template which is the
I think I understand the term dispersion in the optical context and how there could be a similar mechanism at VLF. My main reasons for posting are: 1) an interest is reduced-bandwidth speech systems
Hi Wolf, I agree about the threshold effect. The problem we encounter in cave radio is that ordinary SSB on 87 kHz USB (the commonly used frequency in Europe) is not always robust in the presence of
What is the latest version, suitable for Windows XP SP2, and where is the best place to get it, please? Is there an equivalent to run on the Mac or under Ubuntu? John F5VLF Attachment: signature.asc
Well, Im still getting useful traffic on the Yahoo group as well as on blacksheep. John F5VLF Attachment: signature.asc Description: Message signed with OpenPGP using GPGMail
Try leaving your car across the exit from the local fire station, or transmitting (possibly a spurious emission) on one of the emergency radio frequencies. The latter was one of the reasons CB had a
That is the critical point. There are some services which do not appear often, but which need a clear channel when they do. I recall an offshore broadcasting station in the North Sea which inadverten
