UHF Antenna Amplifier Circuit


Posted on Feb 6, 2014

This amplifier circuit is used to amplify TV signals in UHF range. It uses a low-noise transistor and gives 10 to 15 dB amplification in the frequency range from 400 MHz to 850 MHz. The transistor must be shielded from the input components and in constructing this circuit, the wirings must be as short as possible. For best results, the cable must


UHF Antenna Amplifier Circuit
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be directly soldered to the PCB. The circuit should be installed near the antenna and housed in a water proofed case. The power supply for this uhf tv antenna amplifier is fed through the cable by using a choke coil. To prevent the DC voltage from getting into the TV set, the coaxial cable must be coupled to the set through a small value capacitor.




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