Globalsat EM-506 Инструкция по эксплуатации онлайн [16/17] 88445

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search for the correct satellite signals at the correct signal parameters. Correct initialization

parameters will enable the receiver to acquire signals more quickly, and thus, will produce a faster

navigational soution.

When a valid LLA Navigation Initialization command is received, the receiver will restart using the

input parameters as a basis for satellite selection and acquisition.

Format:

＄PSRF104,<Lat>,<Lon>,<Alt>,<ClkOffset>,<TimeOfWeek>,<WeekNo>,<ChannelCount>,

<ResetCfg>*CKSUM<CR><LF>

<Lat> Latitude position, assumed positive north of equator and negative south of

equator float, possibly signed

<Lon> Longitude position, it is assumed positive east of Greenwich and negative

west of Greenwich Float, possibly signed

<Alt> Altitude position float, possibly signed

<ClkOffset> Clock Offset of the receiver in Hz, use 0 for last saved value if available. If

this is unavailable, a default value of 75000 for GSP1, 95000 for GSP1/LX

will be used.

INT32

<TimeOfWeek> GPS Time Of Week

UINT32

<WeekNo> GPS Week Number

UINT16

<ChannelCount> Number of channels to use. 1-12 UBYTE

<ResetCfg> bit mask

0×01=Data Valid warm/hot starts=1

0×02=clear ephemeris warm start=1

0×04=clear memory. Cold start=1

UBYTE

Example: Start using known position and time.

＄PSRF104,37.3875111,-121.97232,0,96000,237759,922,12,3*37

F). Development Data On/Off ID: 105 Switch Development Data Messages On/Off

Use this command to enable development debug information if you are having trouble getting

commands accepted. Invalid commands will generate debug information that should enable the

user to determine the source of the command rejection. Common reasons for input command

rejection are invalid checksum or parameter out of specified range. This setting is not preserved

across a module reset.

Format: ＄PSRF105,<debug>*CKSUM<CR><LF>

<debug> 0=Off, 1=On

Example: Debug On

＄PSRF105,1*3E

Example: Debug Off

＄PSRF105,0*3F