TECHNICAL DETAILS AND OPERATION INSTRUCTIONS FOR ST121
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1 GENERAL DESCRIPTION
1.1 Purpose of the device and main capabilities
Imitator of signals “ST121” is designed for generation of signals imitating data transmission
channels of special technical means for data gathering.
“ST121” allows generation of:
Radio signals with user set frequency value in 100 – 6000MHz range, and variable output power
of AM and FM, signals with FHSS, DSSS and PULSE.
Signals imitating data transmission standards (GSM, DECT, BLUETOOTH и WLAN).
HF and LF signals in the 220v power lines and low current lines.
IR signal with LF signal modulation and selection of subcarrier frequency.
Sound and ultrasound signals with user defined frequency or with frequency values
corresponding to octave and third-octave filters and direct connection of speakers to the ST121
output socket.
Low frequency magnetic field.
Imitation of nonlinear transition in wire lines.
1.2 ST121 Contents
1. Main module
2. HF antenna
3. "RJ-45" cable
4. "220V" cable
5. "3/RJ-45" cable
6. Power supply/charger 5V/1A
7. Technical description and operating manual
1.3 Main module description
Main block is an independent device which allows signal generation and emission as well as
nonlinear transition for nonlinear transition detector testing.
Work results will be shown on a graphical colored LCD display with 160X128 resolution.
Device is controlled with rotary knob.
Turning off/on is done by the power switch.
Power is provided by internal Li-Polymer battery or power supply.