Wideband DTV UHF Antenna TV Amplifier


Wideband DTV UHF Antenna TV Amplifier

 

Wideband DTV UHF Antenna TV Amplifier

 


This HD TV UHF wideband amplifier(Ultra High Frequency amplifier) has a total gain of 10 to 15 dB in the 400 – 850 MHz domain frequency so it can be used where the tv signal is weak.

For this UHF antenna tv amplifier to work correctly you need to cut the components pins as short as possible. C1, C2, C6, C7 are SMD type ( surface mounted ). This antenna tv amplifier or uhf wideband amplifier need to be build inside of a metal box and then connected close to the tv antenna.

Wideband DTV UHF Antenna TV Amplifier

Antenna HD TV UHF band amplifier circuit schematic



PCB layout for Wideband HD TV UHF Antenna TV Amplifier Circuit using transistor 2sc3358



uhf antenna amplifier pcb layout Wideband DTV UHF Antenna TV Amplifier Circuit using transistor 2sc3358 Antenna amplifier for digital tv banddtv antenna amplifier parts placement 2sc3358 Wideband DTV UHF Antenna TV Amplifier Circuit using transistor 2sc3358 Antenna amplifier for digital tv band



The power supply is a simple 12V stabilized source. The antenna tv amplifier can be connected directly to the power supply thru coaxial cable of the tv antenna but you need a 10 – 100uH coil on the alimentation line. The tv set will be connected to the uhf amplifier thru a small coupling capacitor.

Adjusting is easy, just bring the P1 to the middle and then adjust it untill you obtain the best tv image quality.

Digital Tv antenna UHF amplifier components:



T1 -Transistor 2sc3358

C1 – 10µF/35v

C2,C9 – 1nF

C3 ,C4 – 10nF

C5,c6,c7,c8 – 10pF

R1 – 470 Ohms

R2 – 2.2 K

R3 – 1Kohms

P1 – 5Kohms

L1,L2 – 2 turns 22AWG / 0.5mm , 3mm Ø.

L3,L4 – 10uH or 10 turns, 0.2mm Ø on ferrite..

12 volts special power supply.



Users electronic tags:

2SC3358, Build TV antenna booster, scematic rf tv uhf, schematic diagram rf amplifier uhf, transistor antener circuit for tv, UHF tv filter

Wideband DTV UHF Antenna TV Amplifier

Wideband DTV UHF Antenna TV Amplifier


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