Not to mention the big one at GBR in the 1920s when the helix house burnt down. John F5VLF [email protected] Researching history of RABSON, BLACKSHAW, GAUNTLETT, VERLANDER and ROBSONNE
I ran these programs under Windows XP and found them very useful. Is there something that will provide similar functionality under OS X El Capitan? I would prefer not to get involved in Wine or anyth
I am preparing an article for the CREG Journal on SAQ (the VLF station in Sweden) and would like to include details of Jims electromechanical receiver. G3YXM (on whose website the material appears) h
Had a useful/interesting, albeit rather chilly, field meeting over the weekend. One of the highlights was Rob getting WSPR reports, while operating on 7MHz underground in the Yorkshire Dales, from Lo
I have just resumed monitoring 135 to 198 kHz and have noticed a fairly strong broad and constant signal on about 145 kHz which was not there last winter. It sounds rather like LORAN A (not C) but wi
My experiences with class E single ended amplifiers is similar to that reported by Mal. The only caveat I would add is that you should be quite sure that you have the right driving waveform. During m
Alan, Thank you for your suggestions regarding tracking down the QRM, but this morning the signal on 145 kHz is no longer there. What I have noticed is that there is now an RTTY signal on 147 kHz abo
Thanks Peter. I think I recall DDH47 from when it transmitted weather information on CW. It and WCC on 13033 kHz were two stations I used to keep my Morse speed up. John F5VLF [email protected]
Alexanderson generators were built for frequencies up to 100 kHz and did not display a tendency to fly apart. For background information on the 17.2 kHz installation see CREGJ 96. John F5VLF john.rab
See www.achimbrueckner.de/freeradio/php/wordpress/?p=451307 John F5VLF [email protected] Researching history of RABSON, BLACKSHAW, GAUNTLETT, VERLANDER and ROBSONNE
The baap beep sound is rather like that of the sirens on emergency service vehicles in my part of France. Concerning listening in stereo, I used to have a Stereocode processor which took ordinary aud
As well as these special cables, dont forget (if you are in the UK) to replace your 13A flat-pin mains plugs and sockets with the good old 5A round-pin ones. Some years ago there was a heated corresp
I believe something like that is used at SAQ (Grimeton Radio) on 17.2 kHz as a saturable reactor for keying the transmission. John F5VLF [email protected] Researching history of RABSON, BLACKSH
See also the paper by my son and me in CREGJ issue 24 (June 1996) on reducing speech bandwidth. 73 John F5VLF/G3PAI The same mode developed by Alexander RN3AUS at 2014 and called - "Slow Voice" - SV.
There seems to be more than one product with this number. See http://www.bing.com/search?q=telefunken+LW+638+&qs=n&form=QBRE&sp=-1&pq=telefunken+lw+638+&sc=0-18&sk=&cvid=31C02AF81A034E32BB8903D3B7555
Hi Roman, Yes, but you will need to take out an online subscription (GBP4.00 for 1 year) which will give access to most issues of the Journal. See http://www.bcra.org.uk/bookshop/M4.html 73 John Is i
Markus, We have had several cats over the years and have happy memories of them. It can be a great joy when a cat decides to come and live with you, and a great sadness when this comes to an end. We
From p18 of the T&R Bulletin for December 1926, in an article by 6MU (aka G6MU or GI6MU or GX6MU*) about his round trip from Belfast to Montreal and back: Note that country codes ("intermediates") se
