How to make the analog radio realize 100 km communication

Walkie-talkies, also known as two-way radios, are popular for communication. They are portable and reliable for various situations. While their range is limited, we can extend it to 100 kilometers with some simple techniques. In this blog, we will explore how to achieve this extended range with analog radio.

1. Choose the Right Analog Radio

To achieve a 100-kilometer communication range, it is essential to select walkie-talkies that are designed for long-distance communication. Look for models with higher power output, typically measured in watts, as they can transmit signals over greater distances. Additionally, consider walkie-talkies that operate on the UHF (Ultra High Frequency) band, as UHF signals tend to travel further and penetrate obstacles better than VHF (Very High Frequency) signals.

2. Optimize Antennas

The walkie-talkie’s antenna plays a crucial role in signal transmission. Upgrading to a high-gain antenna can significantly improve the communication range. Choose an antenna that is specifically designed for the frequency band of your walkie-talkies and ensure it is properly installed for optimal performance.

3. Choose Ideal Locations

Height greatly affects the range of walkie-talkies. For extended communication, use your walkie-talkies from elevated locations such as hilltops, tall buildings, or lookout points. Being at a higher elevation reduces the number of obstacles and interference, allowing signals to travel farther.

4. Reduce Interference

Minimizing interference is essential for achieving a longer communication range. Avoid using walkie-talkies in areas with dense buildings, trees, or other obstructions that can obstruct the signals. In addition, choose a clear frequency channel to reduce interference from other radio users.

5. Increase Power Output

Adjust power output carefully to avoid violating regulations and interfering with other radio systems. Check local regulations and use walkie-talkies responsibly.

6. Use Repeater Stations

For critical long-distance communication, consider using repeater stations. These stations receive and retransmit signals, extending the effective communication range. Repeater stations are commonly used in emergency services, large-scale events, and remote areas with limited direct communication.

Retevis has many excellent analog radiios, if you are interested, please click the link to view.