c0.prv.dvb.s1 uses a Conexant CX23880-based DVB receiver tuned to the BBC World Service transmission broadcast from Winter Hill. A modified version of dvbdate_ntp based on Simon Arlott's NTP DVB refclock sends the time signal to ntpd using the shared memory driver.
server 127.127.28.0 minpoll 4 maxpoll 4 prefer fudge 127.127.28.0 time1 -0.032629 fudge 127.127.28.0 refid DVBc server c0.prv.dcf.s1.ntp.faelix.net peer server c0.prv.gps.s1.ntp.faelix.net peer server l0.prv.dcf.s1.ntp.faelix.net peer server c0.prv.ext.s2.ntp.faelix.net server g0.prv.ext.s2.ntp.faelix.net server a.ntp.bytemark.co.uk iburst server 127.127.1.0 fudge 127.127.1.0 stratum 14