日本目黑GPS信号发生器

MSG2050日本目黑GPS信号发生器

■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.
规格

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