LF: Re: Divider by 10 or 100 for 136k out

[MarkusVester@aol.com]

Dear Hans-Albrecht and Jim,

there is one minor disadvantage in keying a divider: As the phase at each key-down is arbitrary, the transmitted signal looses its inter-symbol coherence. This does not affect normal aural or visual decoding in any manner. But on a high-resolution FFT you will no longer be able to resolve a central spectral line, which would be useful to detect the presence of a very weak signal or precisely measure its frequency.

Of course the same holds true for small keying chirps, as I have recently learned :-(

73 de Markus, DF6NM