GPS
Haicom HI-204 III USB
Ultra High Sensitive GPS Receiver
WATERPROOF
Pris kr. 750,-
HI-204III-USB is a GPS receiver with USB interfaces and built-in active antenna for high sensitivity to tracking signal. HI-204III-USB is well suited to system integration and users who use any kinds LaptopPC. It satisfies a wide variety of applications for car navigation, personal navigation or touring devices, tracking and marine navigation purpose. Users can simply plug it into a LaptopPC running with suitable mapping and routing software for navigation.
Standard Package:
Before you start up, make sure that your package includes the following
items. If any items are missing or damaged, contact your dealer
immediately.
* HI-204III-USB GPS Receiver unit
* Suction CUP
* User Manual CD (including User Manual, HaiTest Testing Program)
For notebook PC use:
HI-204III-USB connect with a LaptopPC USB port.
OVERVIEW:
Fast Acquisition Enhanced Sensitivity 20 Channels “All-In-View” Tracking
GPS Sensor Module.
The receiver continuously tracks all satellites in view and provides
accurate satellite positioning data. The HI-204III-USB is optimized for
applications requiring good performance, low cost, and maximum
flexibility; suitable for a wide range of OEM configurations including
handhelds, sensors, asset tracking, PDA-centric personal navigation
system, and vehicle navigation products.
Its 20 parallel channels and 4000 search bins provide fast satellite
signal acquisition and short startup time. Tracking sensitivity of
-159dBm offers good navigation performance even in urban canyons having
limited sky view.
Satellite-based augmentation systems, such as WAAS and EGNOS, are
supported to yield improved accuracy.
FEATURES:
* 20 parallel channel GPS receiver
* 4000 simultaneous time-frequency search bins
* SBAS (WAAS, EGNOS) support
* -159dBm tracking sensitivity
* < 8 second hot start
* < 40 second cold start
RECEIVER OPERATION
Upon power up, after initial self-test has completed, the HI-204III-USB
will begin satellite acquisition and tracking process. Under normal
open-sky condition, position-fix can be achieved within approximately 35
seconds (within 10 seconds if valid ephemeris data is already collected
from recent use). After receiver position has been calculated, valid
position, velocity and time information are transmitted through the on
board serial interface.
The receiver uses the latest stored position, satellite data, and
current RTC time to achieve rapid GPS signal acquisition and fast TTFF.
If the receiver is transported over a large distance across the globe,
cold-start automatic-locate sequence is invoked. The first position fix
may take up to 50 sec searching the sky for the GPS signal. The
acquisition performance can be improved significantly if the host
initializes the receiver with a rough estimate of time and user
position.
As soon as GPS signal is acquired and tracked, the HI-204III-USB will
transmit valid navigation information through its serial interface. The
navigation data contains following information:
* Receiver position in latitude, longitude, and altitude
* Receiver velocity
* Time
* DOP error-magnification factor
* GPS signal tracking status
The HI-204III-USB will perform 3D navigation when four or more
satellites are tracked. When three or fewer satellites are tracked,
altitude-hold is enabled using the last computed altitude and 2D
navigation mode is entered.
With signal blockage or rising and setting of the satellites, where a
change in satellite constellation used for position fix occurred, large
position error may result. The HI-204III-USB incorporates a proprietary
algorithm to compensate the effect of satellite constellation change,
and maintains an accurate smooth estimate of the receiver position,
velocity, and heading.
Technical Specifications: Electrical Characteristics
Items Description
Chipset GSP3F SSiRF StarIII technology
General Frequency L1, 1575.42 MHz
C/A code 1.023 MHz chip rate
Channels 20
Accuracy Position 10 meters, 2D RMS
5 meters 2D RMS, WAAS corrected
<5meters(50%), DGPS corrected
Velocity 0.1 meters/second
Time 1 microsecond synchronized to GPS time
Datum Default WGS-84
Other selectable for other Datum
Acquisition
Rate (Open Sky
& Stationary
Requirements) Reacquisition 0.1 sec., average
Snap start 1 sec., average
Hot start 8 sec., average
Warm start 38 sec., average
Cold start 42 sec., average
Dynamic
Conditions Altitude 18,000 meters (60,000 feet) max.
Velocity 515 meters/second (1000 knots) max.
Acceleration 4g, max.
Jerk 20 meters/second3, max.
Power Main power input 5V DC input.
Power consumption 0.38 W (continuous mode)
Supply Current 75mA
Backup power 3 V Lithium-Ion rechargeable battery
Dimension 43mm L x 42mm W x 13mm H
Weight 23g
LED INDICATOR
LED flashing 0.25Hz Signal Searching
LED flashing 1Hz Position Fixed
