EndRun Sonoma D12, User Manual

Page: 114 / 172

S o n o m a U s e r M a n u a l 98
C H A P T E R T E N
99 S o n o m a U s e r M a n u a l
O P T I O N S
: is the colon character (0x3A)
HH is the hour-of-the-day (00-23)
MM is the minute-of-the-hour (00-59)
SS is the second-of-the-minute (00-60)
<CR> is the ASCII carriage return character (0x0D).
The first <CR> is the on-time character.
<LF> is the ASCII line feed character (0x0A)
NENA8
<CR><LF>Q^^YYYY^DDD^HH:MM:SS^D+ZZ<CR><LF>
Q is the time quality indicator and may be either:
<space> ASCII space character (0x20) which indicates locked.
? ASCII question mark (0x3F) which indicates the unsynchronized condition.
^ is the space character (0x20).
YYYY is the four-digit year
DDD is the day-of-year (001-366)
: is the colon character (0x3A)
HH is the hour-of-the-day (00-23)
MM is the minute-of-the-hour (00-59)
SS is the second-of-the-minute (00-60)
d is the DST indicator (S,I,D,O).
+ZZ + or - time zone offset relative to UTC (00-12)
<CR> is the ASCII carriage return character (0x0D).
The first <CR> is the on-time character.
<LF> is the ASCII line feed character (0x0A).
NMEA Format
The National Marine Electronics Association (NMEA) has developed a specification that defines the
interface between various pieces of marine electronic equipment. This standard defines “sentences”
that contain GPS position, navigation, time, and other information. Sentences that have been imple-
mented in the Sonoma conform to NMEA-0183 Specification Version 3.01 and are GGA, GLL, GSA,
RMC, VTG and ZDA. However, position and navigation are not available in a CDMA-synchronized
product, so the only sentence that has been fully implemented is ZDA (time and date information).
NOTE: Up to 3 sentences may be transmitted per second. The first character (“$”) of the first sen-
tence is the “on-time” character. Once the unit is locked to CDMA, the “on-time” character starts
transmitting within the first 20 microseconds of each second..