Classic Terrestrial Radio (Two-Way Radios / Walkie-Talkies)
Advantages:
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- Highly reliable during emergencies — works independently of cellular networks or internet.
- Instant push-to-talk with no dialing delays.
- Excellent coverage in buildings, tunnels, and remote areas.
- Long battery life and rugged durability.
- One-to-many broadcasting reaches entire teams simultaneously.
Disadvantages:
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- Limited range without repeaters.
- No text, photos, videos, or location sharing.
- Voice-only can lead to misunderstandings.
- Requires dedicated, often expensive hardware and licensing.
- Less flexible for modern features like mapping or CCTV integration.
Internet / Cell Phone Communication
Advantages:
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- Rich media: share photos, videos, live locations, and documents instantly.
- Group chats and apps allow detailed coordination.
- Lower hardware cost — uses existing smartphones.
- Easy integration with university alerts and systems.
Disadvantages:
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- Vulnerable to network congestion, outages, or cyberattacks.
- Faster battery drain; phones can die in prolonged events.
- Coverage gaps indoors or on large campuses.
- Slower for urgent voice exchanges compared to push-to-talk.
- Security and privacy risks if not properly encrypted.
Conclusion: Terrestrial radio remains the gold standard for reliable, immediate emergency response, while cell/internet excels in information-rich, everyday operations. Most campuses use a hybrid approach for optimal security.
