Appendix G: OEM 4000 Technical Specifications
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OEM 4000 Specifications
Frequency range 87.0 - 108.0 MHz steps
Sensitivity <-90dBm for RDS locking at 4Khz inj on 97%
of the frequencies
RDS detection around 1V (0dBV, -107dBm)
Strong Signals <-10dBm typ
Adjacent channel >74 dB at 400 kHz
Antenna input impedance 50 ohms; other values an option
Oscillator leakage -60 dBm
Antenna connector SMB
Power Supply
:
Voltage +5V DC, Supply current 95 mA, Connection through
the 6 pin connector
Data I/O
:
Serial port (main) RS232 or TTL
Processor System
:
Serial I/O 1200-9600 baud N,8,1
Signaling LEDs 1 red, 1 green
Signal indication 40 dB dynamic
Quick Scanning Algorithm
DGPS functions
:
Output: RTCM SC-104 Version 2, 1200-19200 baud, 8 data
bits; 1 stop bit, no parity
Type 1 every 2 seconds
Type 2 every 1 to 5 minutes or on change of ephemeris
Type 9 optionally replaces Type 1 message
DGPS Channel Search
Mode:
Band Scan (BS)
User Defined List Scan (UDLS), Country Code filter option
Mechanical Characteristics
:
Size: 86.1 x 54.1 mm (credit card)
Height: 17.1 mm with connectors, 11.1 mm without connector
Weight: 40 g
Environmental Features
:
Temperature: Operating -30C to +70C, Storage -50C to +70C
Vibration: 0.08g/Hz: 5Hz - 20Hz
0.05g/Hz: 20Hz - 100Hz
03dB/octave: 100Hz - 900Hz
Altitude: -400 to +18000 meters MSL
Humidity: 5 - 95% at 60C
