Holux GM-270 User manual
CF GPS receiver GM-270-Ultra
Features:
12 parallel satellite-tracking channels for fast acquisition and reacquisition.
High speed signal acquisition using 1920 time/frequency search channels.
Low power consumption with Star II / LP chipset.
Built-in rechargeable battery for memory and RTC backup and for fast Time to
First Fix(TTFF).
Support NMEA0183 v2.2 data protocol .
Enhanced algorithms -SnapLock and SnapStart provide superior navigation
performance in urban, canyon and foliage environments.
Support CF card type I connector suitable PDA, Hand Held PC or PC device.
Technical Specification:
Tracks up to 12 satellites.
Receiver: L1, C/A code
Snap Start: <3 sec(at < 25 minutes off
period).
Update rate: 1 HZ.
Acquisition time
Reacquisition 0.1sec.averaged
Hot start 8 sec., averaged
Warm start 38 sec., averaged
Cold start 45 sec., averaged
Position accuracy:
Non DGPS (Differential GPS)
Position 5-25 m CEP without SA
Velocity 0.1 m/sec, without SA
Time 1 usec sync GPS Time
Dynamic Conditions:
Altitude 18,000 meters
(60,000 feet )max
Velocity 515 meters / second
(700 knots) max
Acceleration 4 G, max
Jerk 20 meters/second, max
Antenna Type: Built in Active Antenna
Minimum signal tracked: -175dBW
Dimension: 91×50×20 mm
Weight : < 50g
LED function:
Steady weak orange LED on
Operation Temperature:
-10 to +70
Store Temperature:
-45 to +85
Operation Humidity:
5% to 95% No condensing.
Power consumption
<80mA at 3.3V+/-10% input
Protocol and interface:
NMEA output protocol: V.2.2
Baud rate: 4800 bps
Data bit: 8
Parity: N
Stop bit: 1
Output format:
Standard: GGA,GSA,GSV, RMC.
Interface:
H/W: Compact Flash - CF type I
S/W: Emulated COM Port 1-10
( Auto Select)
* The specifications are subject to be changed without notice.
* The measurement functions of this GPS CF card are not intended for use in tracking measurements
that requires professional or industrial precision. Values produced by this GPS CF card should be
considered as reasonable accurate representations only.
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