11.3 Custom Broadcast String Reference
103
11.3.4
Constructing a Custom String
This section provides the character set and rules for constructing a custom string. At the end of this section
is a tutorial on how to construct strings using some of the standard broadcast strings as examples.
Custom Broadcast Character Set
Character
Meaning
//
/ character
Cssnn
Xor checksum of specified range, where ss = start location (hex value from 00
to FF) and nn = number of bytes (hex value from 00 to FF)
D
Day of month: 01, . . . , 31
d
Day of year: 001, . . . , 366
e
GNSS elevation:
±
dddddd.dd length = 10
f
Fractional Seconds: 00, . . . , 99
Hxx
Hexadecimal value where xx is a hex value from 00, . . . , FF
h
Hour: 00, . . . , 23
Ln
LCD front panel display buffer, 2 lines, 20 characters: L1 = top line; L2 =
bottom line
m
Minute: 00, . . . , 59
M
Month: 01, . . . , 12
O
Local hour offset:
±
hh where hh=00, . . . , 12
o
Local minute offset: 0, . . . , 59 minutes
Pi
Latitude: where i = 1, degrees (dd); = 2, Minutes (mm); = 3, Fractional
minutes (mmmm); = 4, Seconds (ss); = 5, Fractional seconds (fff); = 6, N
(North) or S (South)
pi
Longitude: where i = 1, degrees (ddd); = 2, minutes (mm); = 3, fractional
minutes; = 4, seconds (ss); = 5, fractional seconds (fff); = 6, E (East) or W
(West)
r
Carriage return and line feed
Sii
String Type where ii: 01 = Status change; 02 = Vorne Opt28; 03 = Opt28
ASCII; 04 = True Time Opt28
s
Seconds: 00, . . . , 59
Txx
On time character where xx is a hex value from 01 to FF (Note: Must be at
the start or end of the string!)
U
Unlock time: 00, . . . ,99 minutes
vnn
Option 28 values: 01 = Time Deviation; 02 = Frequency; 03 = Frequency
Deviation; 04 = Amplitude; 05 = Phase Angle
W
Day of week: 1, . . . , 7 where 1 = Sunday
w
Day of week: 1, . . . , 7 where 1 = Monday
y
Year: 00, . . . , 99
Y
Year: 2000, . . . , 2xxx
z
Display number
Table 11.6: Characters used with Custom Strings
Table 11.6 Notes.
Conditionals can use any of the above, with the exception of Cssnn and Txx, in addition
to any string characters. CONDITIONALS CANNOT BE NESTED!