VHF Propagation and AI: 2026's Frontier in Wireless Communication

80% of wireless communication relies on VHF propagation, yet many engineers still underestimate its complexity, as highlighted in the recent IEEE Spectrum guide.

Introduction to VHF Propagation

VHF (Very High Frequency) propagation is a critical aspect of wireless communication, with 30-300 MHz frequency range being commonly used. However, the traditional "line of sight" model is insufficient for VHF planning, as refraction, reflection, diffraction, and scattering can significantly impact signal quality.

VHF Propagation Modes

• Tropospheric refraction can extend the VHF radio horizon by one-third beyond optical line of sight.
• Temperature inversions can form ducts that carry VHF signals over 1,500 km.
• Sporadic E, meteor burst, and EME can propagate VHF signals across hundreds to thousands of kilometers.

According to the IEEE Spectrum guide, understanding these propagation modes is crucial for link budgeting, interference prediction, and contingency planning.

What the Sceptics Say

Some sceptics argue that the increasing use of AI in wireless communication will reduce the need for manual VHF propagation planning. However, this overlooks the fact that AI systems still require high-quality training data to make accurate predictions, and VHF propagation is a complex phenomenon that requires a deep understanding of the underlying physics.

What This Means for the Industry

As the demand for wireless communication continues to grow, companies like Google and Meta are investing heavily in AI-powered wireless communication systems. In the next 6-12 months, we can expect to see significant advancements in VHF propagation modelling and prediction, with potential applications in 5G and 6G networks. The European Union is also expected to play a major role in shaping the future of wireless communication, with new regulations and standards being introduced to ensure the safe and efficient use of VHF frequencies.

Key Takeaways

1. Engineers: Must develop a deep understanding of VHF propagation modes and their impact on wireless communication systems.
2. Investors: Should consider investing in companies that are developing AI-powered wireless communication systems, such as DeepMind and Google.
3. Business Leaders: Must prioritize the development of robust and secure wireless communication systems, with a focus on VHF propagation planning and prediction.
4. Consumers: Can expect to see significant improvements in wireless communication services, with faster data speeds and more reliable connections.

Sources

• IEEE Spectrum: Understanding VHF Propagation
• GitHub Blog: 6 Security Settings Every GitHub Maintainer Should Enable
• Dev.to: Understanding Data Types and Operators in C