With the recent influx of PA stations, new ones appearing every day, it might be the time to request a larger 500 band, 3 Khz is barely enough for QSO purposes, also a reduction in unattended BE
Frequencies below 10kHz are not allocated by International Treaty but we control all frequencies between DC and gamma rays, and no we will not be issuing any licences for that region. I believe that
Gary/Jim/Jim, Not having tried WSPR in QSO mode, can you clarify the method/procedures used please? Must give this a try too. 73s Roger G3XBM On 11 February 2010 22:37, James Moritz <james.moritz@bto
Well done Dom. Looking forward to a (none too fast) CW QSO as soon as you are ready. Don't forget WSPR too - very useful for assessing the station's capability. 73s Roger G3XBM On 11 February 2010 15
Horst, You may be interested in my web page about amateur communications below 10kHz. Have you tried grounded electrode pairs and "earth mode" through-the-ground conduction/induction communications?
Most cave radio work takes place on 87kHz USB although we have sometimes used frequencies as low as 27kHz. The maximum range we have achieved with a 4 W transmitter is about 2 1/2 kilometres. 73 Jo
Hello Roger, Well, quicker than I thought wed be I have some info for you regarding the possibility of operating on 9kHz. Apparently Ofcoms Spectrum Management Team were approached back in 2006 by C
At this frequency, widely spaced, grounded electrode pairs are probably the best "antenna". There are references to how these work in the literature (for example NATO AGAARD papers from the 1960s, a
Seems noise level depend strong on the location. Anyway it is obvious for industrial noise. Theory confirm this empirical rule. Few years ago i do some a theoretical study of optimal signal reciepti
Roger Most of those talking/dreaming about 9 kcs cannot get a signal out beyond their own back yard on 500 or 137 so it would be FOOLISH for those persons to attempt 9 kcs but DREAM ON. Have you not
Not quite Jim. I'd like a QSO next week please when my grandson goes home and I get my shack back! 73s Roger G3XBM On 11 February 2010 23:18, James Moritz <[email protected]> wrote: Dear L
Don't expect great ranges: up to 10kms is a fair aim with modern signal processing technology and reasonable (amateur levels) available power. Project Sanguine achieved worldwide coverage to submar
Is this the full URL of the link you mentioned? http://academypublisher.com/jcm/vol04/no04/jcm0404284294.pdf 73s Roger G3XBM On 8 March 2010 20:35, John Bruce McCreath <[email protected]> wrote:
Enjoy your trip to Ireland Mal and hope you work some good DX from there. If you ever change your mind a signal from you on 8.9kHz would be very useful and it would certainly give everyone a good ide
Brian Pease's site at http://radiolocation.tripod.com/ has a lot about building and using equipment for this application. He says "Horizontal range is on the order of several thousand feet and a de
Testing on the 33km band Where does one start? Stefan - this is simply BRILLIANT experimental work. Thank you for your hard work and for sharing it with us here. I wish you and everyone else all the
What I think is an up-to-date list of DX for <9kHz is attached. Some of this came from a German website some years ago, but I've added some recent results too. I'll keep this updated on my website at
It would be quite easy for anyone to generate 50-100W or so and feed this into a largish diameter multi-turn loop. Correctly aligned and with a similar loop at the far end and using decent weak signa
Well done Eddy. We'll soon have to start again on 8.97kHz! 73s Roger G3XBM On 28 March 2010 10:49, g3zjo <[email protected]> wrote: New unique Spots of my 200uW WSPR on 503.820kHz are few and far
