QPRO Technical Data Sheet
Document 1137-0901, REV A
9
3 Modem Wireless Communication
3.1
Global Positioning System (GPS)
•
Internal GPS
o
Performance
22-channel GPS chipset.
Rapid Time-To-First-Fix (TTFF) 38 seconds from a Cold Start, 25 seconds from
warmstart, 2 seconds from hotstart (Depending on antenna and signal strength)
Accuracy within 2.5 meters
Updates raw location data every 1 second
Sensitivity: -160 dBm for tracking and -146 dBm for acquisition
o
Features
Antenna detection
Utilizes a passive or active 3.0-3.5VDC (5-30 mA nominal) GPS antenna (Active
recommended).
Active antenna with 20-30 dB gain @ 3.3 VDC. Max noise figure 1.5 dB
•
External GPS
o
GPS Serial Port
– If there is no internal GPS, the RS-232 serial port can be used to interface
to an external GPS module or for other application needs.
Pins: 7(Rx), 8 (Tx), and GND (Pin 9, 12, 26 or 35).
NMEA 0183 data available externally on Pin 7, GPS_TX_RS232
•
9600 Baud, 8 bits, no parity bit, 1 stop bit
•
Updates location data every 1 second
Do not feed voltage into or short the GPS port to ground. The QPRO supplies DC bias voltage on the
antenna center conductor. Violating this warning may cause damage to the unit and void the warranty.
3.2
Global System for Mobile Communications (GSM)
•
Internal GSM
o
Performance
Transmit Output Power 2W (Class 4) for 850/900 bands
1W (Class 1) for 1800/1900 bands
Sensitivity -107 dBm @ 850/900 MHz
-106 dBm @1800/1900 MHz
o
Features
Band (Quad Dual Band)
•
GSM850 (TX: 824.2~ 848.8 MHz/ RX: 869.2 ~ 893.8 MHz)
•
EGSM900 (TX:890.0 ~ 914.8 MHz/Rx: 935.0 ~ 959.8 MHz)
o
(TX:880.2 ~ 889.8 MHz/Rx: 925.2 ~ 934.8 MHz)
•
DCS-1800 (TX:1710.2 ~ 1784.8 MHz/Rx: 1805.2 ~ 1879.8 MHz)
•
PCS-1900 (TX:1850.2 ~ 1909.8 MHz/Rx: 1930.2 ~ 1989.8 MHz)
TCP/IP stack
•
IP, TCP, SMTP, FTP, UDP, SMS, POP protocols.
92 kbps maximum continuous throughput
Antenna detection (see note below)
In order for the antenna detection circuitry to work properly, the GSM/GPRS antenna that is selected
must have a 10Kohm DC resistance. This type of antenna can be obtained through the following antenna
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