On 2012-01-06, unruh <[email protected]> wrote: > Ssure a pulse can go missing. Eg, your encore pluse is a TTL level pulse > (0-3 volt transition) and your serial port is marginal with that ( the > standard for serial ports is basically -5 to +5 volt transition) So > occasionally the hardware misses the transition. Or there could be some > high resistance in the line from the encore which meant that the voltage > level transition was too small. Of the receiver decided that the > sattelite data was just not good enough to send out a pulse..... > So yes, pulses could go missing. What worries me more is that 999 ms > offset at one point, which suggests that the nmea sentence came too late > and the pulse got associated with the wrong second. (The garmin 18x had > this trouble a lot apparently). > The Oncore Driver 30 does not use the NMEA protocol. It uses one of those 'special' non-generic type of commands unique to Motorola receivers. Reg Clements is the Type 30 maintainer and is very helpful sharing his knowledge of Motorola binary in solving problems.
Tom -- Public Keys: PGP KeyID = 0x5F22FDC1 GnuPG KeyID = 0x620836CF _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
