Garmin GPS 25 LP Technical Specification page 40

lon Longitude (rad)
lon_vel Longitude velocity (mt/sec)
lat_vel Latitude velocity (mt/sec)
alt_vel Altitude velocity (mt/sec)
Receiver Measurement Record
- 0x10
- 0x29
- 0xE2
- cpo_rcv_type
- one byte chksum
- 0x10
- 0x03
typedef struct
{
unsigned long
double
unsigned int
char
unsigned char
char
char
} cpo_rcv_sv_type;
typedef struct
{
double
int
cpo_rcv_sv_type
} cpo_rcv_type;
rcvr_tow Receiver time of week (sec)
rcvr_wn Receiver week number
cycles Number of accumulated cycles
pr pseudo range (mt)
phase to convert to (0 -359.999) multiply by 360.0 and divide by 2048.0
slp_dtct 0 = no cycle slip detected; non 0 = cycle slip detected
snr_dbhz Signal strength
svid Satellite number (0 - 31) Note - add 1 to offset to current svid numbers
valid 0 = information not valid; non 0 = information valid
(dle is first byte)
(receiver record identifier)
(size of data)
(see below)
(the addition of bytes between the delimiters should equal 0)
(dle)
(etx)
cycles;
pr;
phase;
slp_dtct;
snr_dbhz;
svid;
valid;
rcvr_tow;
rcvr_wn;
sv[12];
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