UHF TV amplifier Circuit
This UHF broadband amplifier (Ultra High Frequency Amplifier) is a total win 10-15 dB 400-850 MHz frequency range, so it can be used if the TV signal is weak.
This UHF-TV antenna amplifier to work properly you need to cut parts of the pins as short as possible. C1, C2, C6, C7 SMD type (surface mounting). This TV antenna amplifier or UHF broadband amplifier is built in a metal box and then connected to a TV near the antenna.
Power supply is a simple 12V stabilized source. TV antenna amplifier can be connected directly to the power supply via coaxial TV antenna, but you will need 10 – 100UH coil is a food bar. TV UHF amplifier connected through a small coupling capacitor.
Adjustment is easy, that P1 in the middle and adjust it until you get the best TV picture quality.
http://www.free-circuit.com/uhf-tv-preamplifier-circuit/
