What device increases the transmitted output power from a transceiver?

What device increases the transmitted output power from a transceiver?

• A. Oscillator
• B. Filter
• C. RF power amplifier
• D. Mixer

Answer: (C)

The RF power amplifier is the device that increases the transmitted output power from a transceiver. In a typical radio communication setup, the transceiver generates a low-level radio frequency (RF) signal suitable for modulation and transmission. However, to successfully transmit this signal over long distances, it needs to be amplified to a higher power level. This is where the RF power amplifier comes into play. An RF power amplifier takes the relatively weak signal produced by the transceiver and boosts its power so that it can drive an antenna effectively. This amplification is crucial for ensuring that the signal can reach receiving stations that might be far away or obstructed by various physical barriers. By increasing the output power, the RF power amplifier enhances the transmission range and reliability of communication. In contrast, other devices mentioned, such as oscillators, filters, and mixers, serve different functions within a radio system. Oscillators generate RF signals, filters are used to select or reject certain frequencies from a signal, and mixers combine signals or shift signal frequencies for modulation purposes. Therefore, these devices do not increase the output power of the transmitted signal, which is the primary role of the RF power amplifier.

The RF power amplifier is the device that increases the transmitted output power from a transceiver. In a typical radio communication setup, the transceiver generates a low-level radio frequency (RF) signal suitable for modulation and transmission. However, to successfully transmit this signal over long distances, it needs to be amplified to a higher power level. This is where the RF power amplifier comes into play.

An RF power amplifier takes the relatively weak signal produced by the transceiver and boosts its power so that it can drive an antenna effectively. This amplification is crucial for ensuring that the signal can reach receiving stations that might be far away or obstructed by various physical barriers. By increasing the output power, the RF power amplifier enhances the transmission range and reliability of communication.

In contrast, other devices mentioned, such as oscillators, filters, and mixers, serve different functions within a radio system. Oscillators generate RF signals, filters are used to select or reject certain frequencies from a signal, and mixers combine signals or shift signal frequencies for modulation purposes. Therefore, these devices do not increase the output power of the transmitted signal, which is the primary role of the RF power amplifier.