Hi there
Heiko Gerstung wrote: > From our DCF77 info page (http://www.meinberg.de/english/info/dcf77.htm): > "In order to increase the accuracy of the demodulated time marks, the > carrier of DCF77 is additionally modulated with a pseudo-random phase > noise. The pseudo-random sequence has a length of 512 bits which are > transmitted in the time interval between the AM marks. Due to the > pseudo-random characteristics of the sequence, the mean deviation of the > carrier phase is still zero. The phase modulated carrier can be received > with a larger bandwidth. Correlation algorithms known from satellite > techniques let PZF receivers determine the correct time with an accuracy > of some microseconds which is much superior to the accuracy achieved by > standard AM receivers." Any more in depth info? > AFAIK we (Meinberg) are the only vendors offering such a technology. See > for example: > > NTP Time Server with PZF receiver: > http://www.meinberg.de/english/products/lanpzf.htm > > Radio Clock Module > http://www.meinberg.de/english/products/pzf510.htm > > (this one can be ordered as a standalone rack-mountable system with > power supply and housing) > > and any other products with a "PZF" in their name :-) Found those. I was just wondering if there are any more. Regards, Rob -- +----------------------------------------------------------------------+ | Rob van der Putten, [EMAIL PROTECTED] | | http://www.sput.nl/spam/spam-policy.html | +----------------------------------------------------------------------+ _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
