I have just looked around and I can not find the file I referenced, please send me a description of DFCW, I am of the impression, apparently wrong, that DFCW involved dual frequencies, which I have i
<< how about several levels of frequency shift in say 1Hz and just learn a new visual code. Just as an example of a visual code, 7 frequency levels, using two sucessive symbols per character gives po
Rik: followed by to avoid misunderstandings : DFCW does not need linear amplification. I have just looked around and I can not find the file I referenced, please send me a description of DFCW, I am o
I studied DFCW and the linear requirement is not possible of course. Larry, to avoid misunderstandings : DFCW does not need linear amplification. 73, Rik ON7YD
More general : it seems that it is possible to cross the pond with stations running less than 1W ERP (believe that BMU and AQC are abt 400-500mW) but it needs rather long dotlengths (1 minute). So we
Alberto, besides the need for a linear PA each of the tones would also have only 50% of the power. Wouldn't that 'give away' 3dB SNR ? 73, Rik ON7YD Rik, true, but then the transmission time would b
Alberto, besides the need for a linear PA each of the tones would also have only 50% of the power. Wouldn't that 'give away' 3dB SNR ? 73, Rik ON7YD Just out of curiosity : I was thinking, a few week
[snip] Just as an example of a visual code, 7 frequency levels, using two sucessive symbols per character gives potential for 49 different symbols, enough for letters numbers and a few punctuation.
Frequency cal for last nights transmission, M0BMU still ~2.99 and another strong signal I had assumed was Laurie but perhaps was someone else, on ~3.78(5) (measurement readout jumps from 78 to 79). I
