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GPS
Receivers
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GPS
receivers are now a mature technology finding hundreds of applications
in location and timing, with the removal of the ‘dither’
(selective availability) signal, we now enjoy dramatically improved
accuracy and performance.
TDC Engineers have been involved in GPS since its commercial availability
in 1991, you will find that our experience and knowledge is second
to none.
The products in this section include chipsets, OEM boards and packaged
GPS Systems for System Integrators.
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Crux
PCMCIA GPS Receiver
Turn your mobile computer and digital map into a
GPS navigator right away! The CRUX GPS Receiver PCMCIA/CF card offers
truly global capability in a small personal GPS receiver and operates
on your notebook, PDA or Web-pad. With its powerful features, built-in
antenna and ease-of-use, the CRUX GPS card is the perfect lightweight
travelling companion.
Features
Frequency L1, 1575.42 MHz.
C/A 1.023 MHz chip rate
Channel 12 channel all-in-view tracking
Antenna One built-in on board patch and an optional active antenna
via MCX
connector
Position 25 metres CEP without SA
Velocity 0.1 meters/second, without SA
Time 1 microsecond synchronised to GPS time
Datum: WGS-84
Reacquisition 0.1 sec, average
Cold Start 48 sec, average (external active antenna)
Altitude 18,000 m (60,000 feet) max
Velocity 515 metres/second (1000 knots) max
Acceleration 4g max
Interface, H/W PCMCIA Type II / CF, S/W Emulated COM-port (COM1-4;
Auto
select)
Baud Rate 4800 bps, N, 8,1
Protocol NMEA-0183 (V2.20) - GGA, GSA, GSV, RMC, VTG, GLL Proprietary
binary request
Voltage 5V/3VSP5%
Current 5V: 230 mA, max continue/85 mA avg. trickle power mode.
3V: 160
mA, max continue/60 mA avg. trickle power mode
Operating
Temp 0°C ~ + 70°C
Relative Humidity 5% ~ 95%, non-condensing.
External GPS active antenna (optional)
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Emtac
GPA-02A External Antenna
The Emtac GPS-02A antenna is an externally mounted GPS antenna
and will help improve performance with CF or PC Cards. For
further information, please refer to the
GPA-02A with MCX connector. |
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SJGL-50
GPS Logger
Mobile
GPS Data Logger/Locator Built in with Receiver & Antenna
Featuring an All-In-One GPS logging solution, the versatile device
comes up with GPS Logger, Receiver & Antenna integrated into
a compact case.
With a GPS logger, receiver and antenna built in a miniature construction,
GL-50 features an all-in-one, cost-effective mobile GPS logging
solution that frees you from the hassle of mounting any other GPS
receivers and antennas. Coming up with innovative Plug-Navigate-Position
concepts, GL-50 offers accurate position logging and mapping capabilities.
Thanks to its plenteous flash ROM space, GL-50 allows you to record
navigational data and download them to your computer, which is ideal
for applications in AVL, Fleet Management System and Marine Navigational
Aids.
Connecting GL-50 to your computer via the RS-232 comm port shipped
with the product, you can read via your computing device, such as
PC, PDA and Palmtop, the NMEA-0183 output sentences (GPRMC) collected
by GL-50's receiver. This way GL-50, designed as a low profile,
waterproof enclosure featuring magnetic mount and end feeding, provides
you with real-time GPS position, speed, distance traveled and header
information in the NMEA-0183 format.
Features
Physical Construction
Dimension 56mm(D) x 28mm(H)
Weight 85 grams (+/- 5%~10% or 10~20gm) without cable
Receiving frequency 1575.42MHz, C/A code
Enclosure High impact, corrosion-proof PC (polycarbonate) resin
Construction Ultrasonic welded, fully waterproof
Mounting Magnetic mount
Performance
Antenna element High-reliability ceramic patch
Antenna LNA Gain : 23+/-2dB, NF : 2.0 max.
Receiver architecture 12 parallel channels, tracking & using
up to 12 satellites
Acquisition time 18 sec. typical (warm start)
Position accuracy 15m or 50 feet RMS*(DOP<3)
Velocity accuracy 0.1 Knot RMS steady state
Update rate 1 sec. continuous
Dynamics Up to 50m/s.s (logging sustained)
Power Supply RS-232 5V, with reverse protection
Power Consumption 105mA @ 5V
Environmental Conditions
Operating Temperature -30 ~ +75 degree C
Storage Temperature -40 ~ +85 degree C
Humidity 95% non-condensing
GPS Interface Capability
Output protocol NMEA 0183
Standard output sentences GGA (GPS Position & Time)
ZDA (Time & Date)
VTG (Course & Speed over ground)
GSV (Satellite Details)
GLL (Latitude & Longitude)
RMC (Position, Time, Speed & Course)
GSA (Receiver Status & DOPs)
*San Jose Navigation Inc. may add other NMEA sentences to the standard
output to maximize interfacing capabilities.
Logger Interval RMC (01 sec.), Others (00 sec.)
Built-in Logger Function Available
Logging Data Interval Programmability Available
Communication
Protocol NMEA 0183 at 4800 baud rate
Signal level RS 232 (standard)
Data Cable
Length 3m (standard), other length (optional)
Description Multiconductor shielded cable with 9-pin DB9 USB receptacle
with strain relief
Power Cable (PS2:+5V)
Length 30m side branched from DB9 receptacle
(This specification is subject to change without prior notice)
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