TECHNICAL DETAILS AND OPERATION INSTRUCTIONS FOR ST121 Introduction 1. GENERAL DESCRIPTION 1.1. Purpose of the device and main capabilities 1.2. Contents 1.3. Main module 1.4. Power supply 1.5. Operation modes 2. RESTRICTIONS AND RECOMMENDATIONS 3. TECHNICAL SPECIFICATIONS 4. LIFE TIME AND MANUFACTURER’S WARRANTY...
TECHNICAL DETAILS AND OPERATION INSTRUCTIONS FOR ST121 Introduction Before starting your work with “ST121” carefully read this instruction and save it for further use as a handbook. Any information in this manual can be changed fully or partially without further notice.
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. ...
TECHNICAL DETAILS AND OPERATION INSTRUCTIONS FOR ST121 1. Charging indicator 2. "5V" power socket 3. Power switch 4. LF socket - output of low frequency signal amplifier in 0.01-120kHz range. Speakers should be plugged here 5. RF/UHF socket - output for radio signals in 100-6000MHz range 6.
TECHNICAL DETAILS AND OPERATION INSTRUCTIONS FOR ST121 1.5 Operation modes After turning the device on you will see the main menu (Pic. 2). Selection in MENU is done by the ROTARY KNOB rotation, confirmation - press ROTARY KNOB. Exiting in previous submenu - press ROTARY KNOB and hold for no less than 3 seconds.
Page 7
TECHNICAL DETAILS AND OPERATION INSTRUCTIONS FOR ST121 If "GSM 3G DECT WF BT" submenu is selected in main MENU you will see the submenu which allows work with signals imitating data transmission standards: "GSM" GSM900, "3G" Third generation mobile telecommunications, "DECT" - Digital Enhanced Cordless Telecommunications as well as data transmission standards in 2.4GHz frequency range: "WF"...
Page 8
TECHNICAL DETAILS AND OPERATION INSTRUCTIONS FOR ST121 Power is changed in % of maximum power. If "220V 30-20000kHz" submenu is selected in main MENU, you will see the submenu which allows work with signals in 30-20000kHz range outputted through "220V" socket to the power lines. This allows to fully imitate data transmission channel in 220V lines.
TECHNICAL DETAILS AND OPERATION INSTRUCTIONS FOR ST121 2 RESTRICTIONS AND RECOMMENDATIONS 2.1 Transport and store ST121 in standard package. For prolonged storing you should use closed, warm compartment with temperature 10-35C and humidity no more than 80%. Transport with caution and try to avoid physical interference with standard package.
Page 10
TECHNICAL DETAILS AND OPERATION INSTRUCTIONS FOR ST121 Maximum signal amplitude, V Modulation AM, FM, PWM Modulation frequency, kHz 0.5, 1, 1, 5, 15 АМ depth, % FM Deviation, kHz 5, 20, 100, 300 Frequency of PWM signal , Hz 1, 10, 40 и 100...
Page 11
TECHNICAL DETAILS AND OPERATION INSTRUCTIONS FOR ST121 "LF" socket Socket Symmetrical Frequency range, kHz 0.01-120 Maximum output power, W 0.7 (power supply), 0.3 (internal battery) Power levels, % 7.5, 14, 20, 32, 50, 65, 80, 100 Impedance, Ω Frequency-tuning step, kHz...
Recommended life time is 7 years from the day of delivery to the customer. 4.2 Manufacturer's warranty 4.2.1 Manufacturer warranties that ST121 matches technical requirements as long as consumer will follow exploitation, transportation and storage regulations stated in this instruction.
Page 13
TECHNICAL DETAILS AND OPERATION INSTRUCTIONS FOR ST121 WARRANTY CARD CARD № 1 For warranty repair (maintenance) ST121 Serial ____________________ Manufactured ________________ Manufacturer's stamp Sold ___________________________________ Date “ ” ________20 г. (vendor's identification) Salesman __________________ Vendor's stamp (signature) CARD STUB № 1...
Need help?
Do you have a question about the ST121 and is the answer not in the manual?
Questions and answers