MSG-2050 GPS Signal Generator
 
 

 

MSG-2050 is a signal generator designed for generating the simulation signal of GPS (Global Positioning System) satellite.

FEATURES
Frequency stability of internal reference oscillator is less then 5×10-7
Rapid changing output level and the level range is from -80dBm to -140dBm
Doppler shift function is not built-in
The output terminal is DC-cut to able to connect to the powered antenna cable.
All NAVI data preset by GP-IB line and also RS-232C.
An automatic Z count increment function is equipped so as to synchronize with real time clock.
The front panel operation can be programmed by GP-IB and RS-232C.
* The application program is attached.
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SPECIFICATIONS
Frequency Characteristics
Frequency 1.57542GHz
Indication VFD display
Accuracy 5×10-7

 Output Characteristics
Output range -80dBm to -140dBm in 1dB step
Indication VFD display
Accuracy ±1.0 dB for -80dBm to -140dBm
Output impedance 50Ω, VSWR less than 1.2
Spurious output Less then -40dB at second harmonic
Setting Can be set with shuttle knob, GP-IB, RS-232C

 Modulation
Modulation method BPSK direct sequence spread spectrum modulation
Indication VFD display
Modulation code 37 C/A codes
Channel SV1 to SV37
Modulation frequency 1.023MHz clock
Data modulation C/A code synchronized divider, 50bps BPSK
NAVI data 50bps test pattern
Setting Can be set with shuttle knob, GP-IB, RS-232C
Z count

Automatic increment function is equipped so as to synchronize with real time clock.


 Interface Function
Parallel interface GP-IB (Complying with IEEE standard 488-1975)
Serial interface RS-232C

 General Data
Operating temperature range +10ºC to +40ºC
Power requirement AC90V to 240V, 50/60Hz
Dimensions Approx. 240(W) × 100(H) × 350(D)mm
Weight Approx. 3.7kg

   
 

 

 
 
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