One of the main functions of the RF amplifier in a superheterodyne

One of the main functions of the RF amplifier in a superheterodyne receiver is to—

1. Provide improved tracking
2. Permit better adjacent-channel rejection
3. Increase the tuning range of the receiver
4. Improve the rejection of the image frequency

One of the main functions of the RF amplifier in a superhetrodyne receiver is to improve the rejection of the image frequency.