....After realizing my loop I found out, that the capacity of the loop itself between the turns was already 800pF. That generates losses. Do you know that capacity in your loop? How can one measure
<< What is the name of that game, may I join in? ;-) Vy 73 Geri, DK8KW (W1KW, ex: AA5SV, C31JE, F0BEG, G5BXG, JY8KW, OK8AHC, OM9AKW, etc. etc. etc. What !!!! No VO1/DK8KW ?? Is that G3IJE above? Oh n
Would amateurs be allowed to relay the one second pips from time-signal stations? That should be synchronous across the pond. The receiving station could phase shift their local T/S pips to correspon
With the figures you give I estimate you will be getting about 100 KV across the inductor. An air-cored coil , of substantial size, would seem to be the best way of doing things. By the way, in the e
I would guess that the sidebands are due to power supply ripple, and that when FSK modulation is on, all the sidebands get modulated too. Since the data is probably not syncronised with the mains, th
In message <[email protected]>, g3kev <[email protected]> writes Hi All. Was planning to operated from Cookstown/Tyrone (GI) this weekend but because of the gales foreca
snip I do not know how to interpret these flare warning messages. Easy way to remember: 'C's are small events and don't do much. 'M's are medium and cause some SW effects. 'X's are Biggies and can pl
Easy way to remember: 'C's are small events and don't do much. 'M's are medium and cause some SW effects. 'X's are Biggies and can play the devil. I can recommend the IPS service which I've subscrib
... I noticed another weak signal had been recorded at around 137.740kHz. It turned out to be sending the same data as GM3YXM/P but with a mystery delay timing difference of around three seconds. Non
snip A vertical antenna takes up less than 1 metre square of space and could have unlimited height. I live under Ringway flight path! Mike -- M.J.Powell
In message <[email protected]>, Andy Talbot <[email protected]> writes MSF has been off as well, just as I wanted to do some long duration frequency calibration tests,
Another weekend gone and no key clicks here either. It seems that all I want for Christmas is some key clicks. Make my day, send me some key clocks, one for the start of every dit, another for the en
Mike Hello Mike, You would have an enormous peak power, but unfortunately also an enormous bandwidth. So after all the signal-to-noise ratio would not improve. What a pity. Another good idea down the
In message <[email protected]>, Clifford Buttschardt <[email protected]> writes Interesting observation on real time listening on LF. When I was at sea as a r
Walter Blanchard quoted the RACAL expert who has in the past designed the Decca antennas as follows: (...) If the small one has an assymetric horizontal component (flat-top) this will complicate matt
over Mike Powell commented: And yet did not Marconi use a vertical antenna with a long horizontal wire to obtain directivity from Cape Race? When the original aerials came down in a gale he found eq
In message <[email protected]>, Mike Dennison <[email protected]> writes I have been playing around with feeding differently derived audio into the two halves of stereo head
In message <[email protected]>, Mike Dennison <[email protected]> writes Dick, PA0SE wrote: I have tested "pseudo-stereophonic" reception of CW by feeding the halves of a st
