Specifications

132 Z-Family Technical Reference Manual
Zeros will be padded so that all of <packed data> part will be a module of 16 bits.
Total number of bits in <packed data>: ceil ((94 + 72*2*Nsvs)/16) * 16 and <data
length> = ceil ((94 + 72*2*Nsvs)/16) * 2 in which, ceil (a) means truncates to +Inf,
e.g., ceil (3.1) = 4, ceil (3.5) = 4, ceil (3.95) = 4. Nsvs is number of SVs.
DBEN message size:
EPB: Raw Ephemeris
$PASHQ,EPB,d
Query for raw ephemeris data output, where d is the PRN number. If no PRN number
is specified, data for all available SVs will be output.
long PH_I 1 28 Integer part of the carrier phase
measurement in cycles
double PH_F 15.0e-4 11 Fractional part of the carrier phase
measurement in units of 5e-4
cycles. Multiply this number by
5e-4 to get fractional carrier phase
in cycles. Whole carrier phase
measurement = PH_I +
PH_F*5.0e-4
Table 6.66: DBEN Message Sizes
Num of SVs bits bytes
4 808 101
5 952 119
6 1096 137
7 1240 155
8 1384 173
9 1528 191
10 1672 209
11 1816 227
12 1960 240
Table 6.65: RPC Packed Parameter Descriptions (continued)
Data
Type
Symbol Range Resolution
Compress
Num. Bits
Description