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< DESCRIPTION >

The MSG-2041 is a high performance Signal Generator designed for generating the Simulation Signal of GPS (Global Positioning System) Satellite.
This Signal Generator is suitable for adjustment and inspection of GPS receivers and systems, and it has been developed for control all functions by GP-IB in addition to simple operation.
It can be possible to measure Error Rate Frequency and Lock Range, etc. with output terminals for data signal of C/A, NAVI and etc.

< FEATURES >

1. Frequency stability of internal reference oscillator is less then 5×10-8. With external Atomic Oscillator, stability is possible to improve up to 5×10-11 through input terminal on a rear panel.

2. Frequency adjustable in 0.1Hz steps.

5. LNA powered antenna can be connected. A capacitor is installed in the RF output terminal.

6. All NAVI data preset by GP-IB line and also automatic Z count renewal function can be preset.

7. Most suitable for inspecting convolution operation of Receivers with capability of presetting of doppler frequency and level of each Satellite.

8. 1.023MHz data clock and NAVI data are on a rear panel for checking IF section and signal processing section.

Frequency Characteristics

1. Range 1.57542GHz±10000.0Hz

2. Indication LED display for only Doppler Frequency (±10000.0Hz)
3. Accuracy 5×10-8 (using with built-in Standard Oscillator)
4. Setting Numerical entry, shuttle knob, GP-IB in 0.1Hz steps

Output Characteristics

1. Range -50 ~ -149dBm
2. Indication -50 ~ -149
3. Accuracy ±1 dB for more then-60dBm ±2 dB for less then-60dBm
4. Impedance 50 Ohm, VSWR less than 1.5
5. Leakage less then-140dBm
6. Spurious Output less then-55dB for second harmonic
7. Setting Inputting values directly with ENTER keys, shuttle knob and GP-IB in 0.1Hz steps

Modulation

1. Method BPSK direct sequence spread spectrum modulation
2. Code 32 C/A codes
3. Frequency 1.023MHz clock
4. Frequency Stability RF carrier divider method
5. Data Modulation C-A code synchronized divider, 50bps BPSK
6. Setting SV numerical entry, GP-IB, Non-modulation
7. Z count Automatic incremental function

GP-IB Function ( Complying with an IEEE standard 488-1975 )

SH1 : Transmitting Hand-Shake Function YES
AH1 : Receiving Hand-Shake Function YES
T8 : Basic Talker Function YES Talker Only Mode NO
L2 : Basic Listener Function YES Listener Only Mode NO
TEO : Expansion Talker Function NO
LEO : Expansion Listener Function NO
SRO : Service Request Function NO
RL1 : Remote Local Function YES / Selection Switch YES / Local Lockout Function YES
PPO : Parallel Pole Function NO
DC1 : Device Clear Function YES
DTO : Device Trigger Function NO
CO : Control Function NO

General Data

1. Operating Temperature 5ºC to 35ºC
2. Power Supply 100V, 115V, 215V, 230V AC±10%(selectable), 50/60Hz
3. Dimensions & Weight Approx. 295(W)×160(H)×338(D)mm, 16 kg

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