*Question T2B03:
Which of the following describes a linked repeater network?*  

*Correct Answer is  A: A network of repeaters in which signals received by one repeater are transmitted by all the repeaters in the network*  

### AI Response: (may contain errors)  

To understand the concept of a linked repeater network, let's break down the correct answer and the other choices.

### Correct Answer: 
**A: A network of repeaters in which signals received by one repeater are transmitted by all the repeaters in the network.**

- **Explanation**: In a linked repeater network, when one repeater receives a signal, it can relay that signal to other repeaters in the network. This allows for extended coverage and enables communication over larger distances by utilizing multiple repeaters. Each repeater in the network acts as a node that can receive and retransmit signals, effectively amplifying the reach of the communication.

### Why the Other Choices are Incorrect:

- **B: A single repeater with more than one receiver.**
  - **Explanation**: This describes a repeater that can handle multiple incoming signals but does not imply any linking between multiple repeaters. A linked repeater network specifically involves multiple repeaters working together, not just a single repeater with multiple receivers.

- **C: Multiple repeaters with the same control operator.**
  - **Explanation**: While multiple repeaters can be operated by the same individual, this does not define a linked repeater network. The key aspect of a linked network is the interconnection and signal relaying between repeaters, not just shared control.

- **D: A system of repeaters linked by APRS.**
  - **Explanation**: APRS (Automatic Packet Reporting System) is a digital communication protocol used for sending information like position data. While APRS can be used in conjunction with repeaters, it does not define a linked repeater network. The focus of a linked repeater network is on the audio or RF signal relaying, not specifically on APRS.

### Summary:
- A linked repeater network enhances communication by allowing multiple repeaters to relay signals, increasing coverage.
- The other options either describe different configurations or do not capture the essence of what a linked repeater network is.

This understanding is crucial for the Extra Class exam, as it highlights the operational principles of repeaters in amateur radio.