The Communication industry requires an ever-high data rates in the communication systems, the greater data rates needs that the components of a communication system are designed to ensure the signal integrity.
The transmission lines have critical importance in the design of communication systems, because is a main element in the terrestrial communication systems. The correct transmission of the information depends on a good design of this critical component.
The Transmission Lines Unit “ELT” has been designed as integrated unit for help the student to understand the basic principles of the transmission line measurement theory.
SPECIFICATION
All elements are mounted in a metallic box, with power supply and block diagrams.
Signal Generators blocks:
- Square Signal Generator block:
- Amplitude: +12 V.
- Frequency range: 1Hz to 50KHz.
- Sine Signal Generator block:
- Amplitude: ± 2.5 V.
- Frequency range: 1 Hz to 100KHz.
- Triangle Signal Generator block:
- Amplitude: ± 2.5 V.
- Frequency range: 1 Hz to 100KHz.
- Each signal generator contains an encoder to change the signal frequency and four BNC connectors with different output impedance.
Transmission Lines block:
- Two transmission lines.
- Two BNC connectors for each transmission line.
- Five test points along of each transmission line.
The first and the last test point are straight connected with the BNC connectors and there is 10 m. of coaxial cable between test points. 40 m. of RG-174 coaxial cable in each line, a total of 80 m. in the 2 lines.
Load block:
- Type of loads: resistive, inductive and capacitive loads.
- First group of loads:
- 1 KW potentiometer.
- 33W Resistance.
- 1nF Capacitor.
- 4.7 mH Inductance.
- Short circuit/Open circuit.
- Second group of loads:
- 1 KW potentiometer.
- 50W Resistance.
- 10nF Capacitor.
- 4.7 mH Inductance.
- Short circuit/Open circuit.
- Switches to connect and disconnect each load.
- Three BNC connectors.
Cables and Accessories, for normal operation.
Manuals: This unit is supplied with the following manuals: Required Services, Assembly and Installation, Starting-up, Safety, Maintenance & Practices Manuals
