A design document specifies a directional antenna for a long municipal courtyard link. How should the technician explain antenna gain?
Select an answer to reveal the explanation.
Short Explanation
A directional antenna is like a megaphone — same voice, more energy pointed where you aim, less spilled sideways. You did not invent a louder throat; you focused what the radio already puts out. That is gain at technician depth.
Full Explanation
Passive antenna gain reshapes and concentrates RF energy into a directional (or otherwise shaped) radiation pattern, improving effective signal in desired directions at the expense of others. It does not create energy from nothing beyond the transmitter's output as modified by the antenna system. Gain is not a frequency setting and is not the same phenomenon as free space path loss. Courtyard links use directional gain as specified in the design, not as an excuse to ignore radio power limits.