Hi Stefan, It would be interesting try to transmit a robust CW signal on 472 KHz, eventually with a lambda/4 kite antenna on the saltwater. It is a bit of time I'm thinking... ;-) Some years ago I ma
Hi Fausto, Am 21.08.2015 15:39, schrieb Fausto Coletti: Hi Stefan, It would be interesting try to transmit a robust CW signal on 472 KHz, eventually with a lambda/4 kite antenna on the saltwater. Yes
Hi Stefan, It would be interesting try to transmit a robust CW signal on 472 KHz, eventually with a lambda/4 kite antenna on the saltwater. It is a bit of time I'm thinking... ;-) Some years ago I ma
Yes Mal, I agree with you ! But I am wondering how long time the drone can do the job without refueling ??? F6CNI Andy. From: [email protected] Mal Hamilton Sent: Friday, August 21, 2015 8:31 PM
counts. So CW will be hard! I definitely agree that CW will be hard over the very long haul but I am encouraged with improvements in receiver technology/DSP and smaller, high performance receive ant
only 20 minutes with one Kg payload. A kite or baloon is better. Seriously speaking, the difficulties are very big, as rightly says Stefan 160 meters band, has a very different behavior but, do not
Maybe rectify some rf to keep the batteries topped off? Jay W1VD WD2XNS WE2XGR/2 -- Original Message -- From: [email protected] Mal Hamilton To: [email protected] rsgb_lf_group@blacksh
Maybe rectify some rf to keep the batteries topped off? Jay W1VD WD2XNS WE2XGR/2 -- Original Message -- From: [email protected] Mal Hamilton To: [email protected] rsgb_lf_group@blacksh
You could always take a tip from H.G. Wells and attach a plate of Cavorite to the end of the antenna to hold it up! 73, J.B., VE3EAR LowFER Beacon "EAR" 188.830 kHz. QRSS30 EN93dr
Maybe rectify some rf to keep the batteries topped off? Jay W1VD WD2XNS WE2XGR/2 -- Original Message -- From: [email protected] Mal Hamilton To: [email protected] rsgb_lf_group@blacksh
Am 21.08.2015 21:43, schrieb John Langridge: Out of curiosity, are most stations in Europe using directional RX antennas or only omnidirectional/TX antenna? Most of us here state side that have mad
Am 21.08.2015 21:59, schrieb Fausto Coletti: fly only 20 minutes with one Kg payload. A kite or baloon is better. On the north sea, a kite is definitively better! Seriously speaking, the difficulties
Hello all, To cheer you all up , there is a guy living in Hawaii who regularly receives NDB's from Japan, Australia, Papua New Guinea and a lot more of remote Pacific locations. No fancy equipment is
Hi Fausto, LF, forget that in 1901 Guglielmo Marconi received a signal across the Atlantic at a frequency around 500 kHz ...did he really? I think there is some doubt around this story. With a cohere
''aural copy with a couple of bog's.'' novel deployment for the ''Porcelain megaphone'' ? G, )) Hello all, To cheer you all up , there is a guy living in Hawaii who regularly receives NDB's from Japa
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I know these documents and I know also how many detractors there have been and there are against the work of Guglielmo Marconi. Now I'm not here to say if in December 1901 Marconi succeeded or not in
the Marconi's trasmitter was a spark tx, with many harmonics and no selective filters .. It possible what the transatlantic contact was made using the 3° or higher harmonic ??? 73 de Mauro IK1WVQ At
Thank you Stefan. I look forward to seeing your results. Its quite amazing how just a slight increase in S/N can make a huge difference sometimes. These are exciting times for MF and LF.. 73! John KB
