PoC vs DMR Radios
PoC vs DMR Radios (Key Differences)
PoC (Push-to-Talk over Cellular)
- Uses LTE / 4G / 5G networks
- Requires SIM card + PoC platform
- Essentially a network-based walkie-talkie
DMR (Digital Mobile Radio)
- Uses licensed VHF/UHF radio spectrum
- Works via repeaters or direct radio-to-radio
- ETSI open standard (Tier I / II / III)
Side-by-Side Comparison
| Item | PoC Radio | DMR Radio |
|---|---|---|
| Network | Cellular (LTE/5G) | VHF / UHF RF |
| Coverage | Nationwide / Global | Limited by repeater range |
| License | ❌ Not required | ✅ Often required |
| Latency | Low (200–500 ms) | Very low (instant) |
| Infrastructure | SIM + PoC server | Repeater / base station |
| Works without network | ❌ No | ✅ Yes |
| Group size | Very large (1000+) | Limited |
| Cost model | Monthly SIM / platform fee | One-time hardware + license |
Simple rule of thumb
- PoC → best for wide-area, multi-city operations
- DMR → best for local, mission-critical, offline reliability
