ATV JR TRANSMITTER 440 MHz

This low-power video transmitter is suitable for remote control applications, surveillance, or amateur radio. It employs seven transistors within a crystal oscillator multiplier RF power amplifier chain, along with a high-level video modulator. A supply voltage ranging from 9 to 14 VDC is necessary. The output power varies between 0.4 to 1.2 W, depending on the supply voltage. A complete kit of components is available.

The low-power video transmitter circuit is designed to operate efficiently in various applications, including remote control (R/C) systems, surveillance setups, and amateur radio communications. The heart of the circuit consists of a crystal oscillator that generates a stable frequency, which is then multiplied to achieve the desired RF output. The use of seven transistors in the RF power amplifier chain enhances the output power while maintaining low power consumption, making it ideal for battery-operated devices.

The crystal oscillator ensures that the transmitter operates at a precise frequency, which is crucial for minimizing interference and ensuring clear video transmission. The RF power amplifier chain boosts the signal strength, allowing for effective transmission over longer distances. The high-level video modulator is responsible for encoding the video signal onto the RF carrier wave, ensuring that the transmitted video maintains its integrity and quality.

The power supply requirement for this circuit ranges from 9 to 14 VDC. This flexibility in voltage supply allows for compatibility with a variety of power sources, including batteries and regulated power supplies. The output power of the transmitter can be adjusted between 0.4 to 1.2 W, depending on the supply voltage applied, providing versatility in transmission range and power efficiency.

A complete kit of components for assembling this transmitter is available, which typically includes all necessary passive and active components, along with a printed circuit board (PCB) for ease of assembly. This kit is designed for both novice and experienced builders, facilitating the construction of a reliable and functional video transmitter tailored to specific application needs.This low-power video transmitter is useful for R/C applications, surveillance, or amateur radio applications. Seven transistors are used in a crystal oscillator multiplier RF power amplifier chain, and a high-level video modulator.

A 9-to 14-Vdc supply is required. Output is 0.4 to 1.2 W, depending on supply voltage. A complete kit of parts is available from.. 🔗 External reference