Bharat electronics & electricals manufactures 100-w vhf band-3 tv transmitter & power amplifier using high gain broadband mosfet rf devices for generating 120w output power. The company provides driver amplifier and power amplifier with class-a mode operating stage for better linearity and low third order effects.
The company also offers 120w power amplifier with built-in switch mode power supply, linearity corrector and controller card to monitor and control power amplifier. The power amplifier comes with advantage of being protected from vswr, thermal, over drive and over voltage faults occurring in course of operation. The exciter of the 100-w vhf band-3 tv transmitter employs state-of-art technology with dual synthesizer/double up conversion which makes frequency agile and broadband of the exciter in vhf band-iii
Technical specifications:
1] 100 w common amplification tv transmitter
2] mosfet based broadband 120w power amplifier.
3] vswr, thermal, over drive and over voltage protection for power amplifier
4] pallet based power amplifier design for easy replacement
5] excellent imd performance of the power amplifier with in-built automatic linearity correction
6] broadband frequency agile exciter with saw filter.
7] processor based control and monitoring of power amplifier and exciter parameters on lcd display & personal computer.
8] remote control and monitoring using modem
9] pcb level diagnostics at remote location.
10] automatic channel change of output filter to meet emission standard.
