Trimble Outdoors 58052-00 Benutzerhandbuch

B      TRIMBLE ASCII INTERFACE PROTOCOL (TAIP)

1 9 6      Copernicus GPS Receiver

Data String Format:

(S)AA(S)BBB(S)CCCC

This is a very coarse initial position that can be used to aid the receiver in obtaining 
its first fix. This is particularly useful with a receiver that does not have battery 
backup enabled. In such cases, every time the unit is powered up, it goes through a 
complete cold-start and it has absolutely no knowledge of where it is. Providing this 
message improves performance by decreasing the time to first fix and enhances the 
accuracy of the initial two dimensional navigation solutions by providing a reference 
altitude. In case of units with battery backed memory, sending this message is only 
helpful if the unit has moved more than 1,000 miles since its previous fix. In either 
case, the receiver can initialize itself appropriately without any data from the user; it 
merely requires more time.

The following message will set the initial position to 37

o

 North, 122

o 

West, altitude 

10 meters.

>SIP+37-122+0001<

Item

# of Char

Units

Format

Initial Latitude

3

Deg

(S)AA

Initial Longitude

4

Deg

(S)BBB

Initial Altitude

5

10 meters

(S)CCCC

Total number of characters is 12