What happens to lost power in a feed line?

• A. It is reflected back to the transmitter
• B. It is converted into heat
• C. It enhances signal strength
• D. It is absorbed by the antenna

Answer: (B)

When power is lost in a feed line, it is indeed converted into heat. This loss usually occurs due to the resistance of the conductor (wire) in the feed line itself. As electrical current travels through the wire, some energy is dissipated as thermal energy due to this resistance, which is why the feed line can feel warm to the touch during operation. This heat generation is a common and expected phenomenon in any system where electrical current is flowing through a resistive material.

In practical terms, minimizing this loss is crucial for effective communication over amateur radio. Techniques such as using high-quality cables with lower resistance and ensuring proper connections can help reduce power loss in the feed line, thereby improving overall system efficiency and performance.