Spacetronik SPA-AGC20 terrestrial antenna amplifier with AGC function
The AGC (Automatic Gain Control) amplifier automatically adjusts the gain level of a DVB-T/T2 terrestrial signal to maintain its constant amplitude at the output, regardless of varying input signal levels. The AGC amplifier works by monitoring the output signal level and dynamically adjusting the gain level to keep the signal in the best range for proper picture reception of TV channels.
How does the AGC amplifier work?
The signal amplification process begins with measuring the output signal. Then, the device analyzes the signal levels, comparing the input signal with the output signal. The next step the amplifier takes is to adjust the gain. If the output signal differs significantly from the input signal, the AGC amplifier compensates for the difference in signal strength. Equally important, the amplifier continuously monitors levels and stabilizes them in real time.
Signal level indicator
The amplifier has an LED that indicates the quality of the input signal. If the signal is weak, it glows red, if medium, it glows yellow, if good - it glows green. Note that the amplifier does not generate a signal if one is not available. Equally important, the amplifier can only be used with passive antennas.
Specifications
Features:
- Automatic AGC amplification
- USB-C power connector
- LEDs to indicate signal quality
Parameters:
- 1 F-socket input
- 1 IEC-male output
- 20dB gain
- VHF frequency: 47-230MHz
- UHF frequency: 470-694MHz
- Impedance: 75 Ohm
- Operating voltage: DC 5V 550mA
