MSG-2051A GPS signal generator



MSG-2051A is a high performance GPS signal generator designed for generating a simulation signal of GPS (Global Positioning System) satellite, and used in combination with a simulator base station for mobile phones, this unit is widely used in R/D, inspection, production, maintenance department of mobile phones terminals.
This unit adopts a reference clock (10MHz) input/output terminal and also 1pps signal input/output (output on option) terminal so as to synchronize a mobile phones with a simulator base station.
All operation can be controlled by GP-IB ,RS-232 and newly added serial interface, USB for simplifying the operation, and the output level can be switched quickly over a range from -80dBm to -149.9dBm.
All NAVI data can be preset by GP-IB,RS-232C and also USB, and a Z-count automatic increment function can be preset.


Frequency stability of internal reference oscillator is less than 510-8.
Rapid changing output level and the level range is from -80dBm to -149.9dBm (-60dBm to -129.9dBm).
Doppler frequency (1.57542GHz 10kHz) can be set digitally.
The output terminal is DC-cut to able to connect to the powered antenna cable.
All NAVI data preset by GP-IB and also RS-232C and USB.
A Z-count automatic increment function can be preset.
* The application program is attached.


Frequency 1.57542GHz (L1 Band)
Doppler frequency 10000.0Hz
Accuracy 210-8
Frequency steps 0.1Hz
External reference clock 10MHz
VFD display Doppler frequency
Setting Shattle knob, RS-232C, GP-IB, USB
Level Range -80dBm to 149.9dBm (-60dBm to 129.9dBm)
VFD display -80 to 149.9 (-60 to 129.9)
Accuracy 1.0dB
Output impedance 50[, VSWR < 1.2
Sprious output -50dB or better at 2nd harmonic
Setting Shuttle knob, GP-IB, RS-232C, USB (Min. 0.1dB)
Modulation method Direct differential modulations of BPSK spectrum
Modulation code 37 kinds C/A codes (1023-bit serues gold codes)
Channel SV1 to SV37
Modulation frequency 1.023MHz clock
Data modulation C/A code synchronized frequency division, 50bps BPSK
NAVI data 50bps test pattern
Setting Shuttle knob, GP-IB, RS-232C, Non-modulation, USB
Z count

Automatic incremdent function being synchronized with real time clock (RTC) is proivded

Display Displayed with VFD
 External Modulation
Input 1PPS and 2PPS input terminal
 Interface Function
Parallel interface GP-IB (Conforms to IEEE Std. 488-1975)
Serial interface RS-232C -sub 9-pins (Male)AUSB TYPE B (Female)
 General Data
Operating temperature range 0ºC to +40ºC
Guarantee temperature range +10ºC to +35ºC
Power requirement AC90V to 240V, 50/60Hz
Power consumption 25VA max.
Dimensions Approx. 430(W) 115(H) 420(D)mm
Weight Approx. 10kg
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