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| MSG-2051A GPS Signal Generator |
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The 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. |
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Frequency stability of internal reference oscillator is less than 2×10-8. |
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Rapid changing output level and the level range is from -80dBm to -149.9dBm (-60dBm to -129.9dBm). |
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Doppler frequency (1.57542GHz ±10kHz) can be set digitally. |
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The output terminal is DC-cut to able to connect to the powered antenna cable. |
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All NAVI data preset by GP-IB and also RS-232C and USB. |
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A Z-count automatic increment function can be preset. |
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The application program is attached. |
| Frequency |
| Frequency |
1.57542GHz (L1 Band) |
| Doppler frequency |
±10000.0Hz |
| Accuracy |
2×10-8 |
| Frequency steps |
0.1Hz |
| External reference clock |
10MHz |
| VFD display |
Doppler frequency |
| Setting |
Shattle knob, RS-232C, GP-IB, USB |
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| Output |
| 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 |
50Ω, VSWR < 1.2 |
| Sprious output |
-50dB or better at 2nd harmonic |
| Setting |
Shuttle knob, GP-IB, RS-232C, USB (Min. 0.1dB) |
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| Modulation |
| 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 |
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| External Modulation |
| Input |
1PPS and 2PPS input terminal |
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| Interface Function |
| Parallel interface |
GP-IB (Conforms to IEEE Std. 488-1975) |
| Serial interface |
RS-232C Ｄ-sub 9-pins (Male)，USB TYPE B (Female) |
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| 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. 420(W) × 100(H) × 430(D)mm |
| Weight |
Approx. 10kg |
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Specifications are subject to change without notice. |
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