Typo - 0.5Hz, coming out of a 74AC74 driven by PAL. Split off to front connector and "cellular interface" so there is 2 places to pick of 0.5Hz.
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Iain Young Sent: Saturday, 14 September 2013 5:12 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] nortel trible NTBW50AA boards SCPI command access Hi Mark On 13/09/13 13:26, Mark C. Stephens wrote: > One obvious use for the SCPI port could be for NTPD. > The NTBW50AA is lacking 1PPS but has a very accurate 2 Hz pulse ideal for > NTPD. 2Hz ? I thought it they were a pulse on the even second, thus actually 0.5 Hz ? I wonder how the PPS Driver in NTP would react to that (either 2Hz, or 0.5Hz pulses). I guess if it really is 2Hz, then one of Tom's PICs could be used to drop it to 1 Hz But if it's 0.5 Hz, I wonder if a modification to the ATOM driver or underlying PPS code would be needed Or is the 2Hz signal coming off the SCPI port ? Iain (and yes, like others, I am interested) _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
