HOLUX
GPS Logger M-241c User’s Manual
8
4. Specification
Specifications
‧
32 parallel satellite searching channels
‧
Receiver: L1, 1575.42 MHz
‧
Frequency: 1.023 MHz
‧
Update frequency: 1 Hz.
‧
Antenna type: Built-in
‧
Satellite signal reception sensitivity: -159dBm
‧
Dimensions: 32.1mm X 30mm X 74.5mm
‧
Weight (excluding battery): < 39g.
‧
Switch: Slider switch
‧
Operating temperature: 0
℃
to + 50
℃
‧
Storage temperature: -10
℃
to + 60
℃
‧
Operating humidity: 5% to 90%
Positioning
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Non DGPS (Differential GPS)
：
：
：
：
‧
Position : 3.0 M CEP excluding SA
‧
Velocity: 0.1M / sec.
‧
Interval: 0.1 sec to Sync GPS
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DGPS (EGNOS/WAAS/MSAS)
：
：
：
：
‧
Position: < 2.2 M., Horizontal deviation 95% time
< 5 M., Vertical deviation 95 % time
*The above data is based on the specifications of the MTK GPS chip
Positioning
Timing
‧
Time to reposition < 0.1 sec average
‧
Hot boot 1 sec
‧
Warm boot 33 sec
‧
Cold boot 36 sec
*The above data are based on specifications of the MTK GPS chip
Protocol and
Interface
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Output port: Mini-USB (CMOS Level)
‧
NMEA protocol output: V 3.01
Baud rate: 38400 bps
Data bits: 8
Sync bits: N
End bit: 1
‧
Output interface:
Standard: GPGGA (1 time per second), GPGSA (1 time per second),