[Milsurplus] CW Keying

[Ralph Cameron]

Its possible to recognize "fists" with individual keying characterstics when using "Bugs" or any other key. Its much simpler to relate the signal signature to a particular transmitter or callsign by storing a portion of the signal and analyzing the "print" of the signal. 

Each keyed transmitter has a unique "on-off" keying signature due to power supply time constants among other things. the operators cw rhythm can act as further confirmation.   I once did this on recordings of the same operator , two years apart and found complete correlation between the dot-dash ratio and the rise and fall times of the keyed signal. 

73 '

Ralph 
VE3BBM
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