Motorola R7a
DMR portable flagship — ATEX Zone 2 certified, SINC+ AI noise suppression, 102 Phon loudness, IMPRES 2 battery delivering up to 28 hours runtime.
Motorola MTP850
TETRA portable classic — Class 3L 1.8W RF output, GPS enabled, end-to-end encryption, built for Dimetra trunked public-safety networks.
| Specification | R7a | MTP850 |
|---|---|---|
| Protocol | DMR (MOTOTRBO) | TETRA (Dimetra IP) |
| RF Output | 5 W class | 1.8 W (Class 3L) |
| Audio Loudness | 102 Phon | — |
| Battery Runtime | Up to 28 h (IMPRES 2) | — |
| Certification | ATEX Zone 2 | — |
| GPS | — | Enabled |
| Security | — | End-to-end encryption |
| Typical Use | Oil & gas, chemical plants | Public-safety TETRA networks |
Decision Framework — Hazard-Zone Entry vs Network Standard
- • ATEX Zone 2 hazardous sites (oil & gas, chemical, mining): R7a — certified for explosive atmospheres with 102 Phon loudness cutting through plant noise and a 28 h IMPRES 2 battery covering double shifts without a swap.
- • TETRA trunked public-safety mandates (police, metro transport): MTP850 — 1.8 W Class 3L output and end-to-end encryption are non-negotiable on Dimetra infrastructure; GPS enables dispatcher location tracking.
- • Audio is the field differentiator: R7a's SINC+ AI noise suppression plus 102 Phon loudness wins in industrial acoustics, while MTP850's encrypted voice wins on security.
- • Bottom line: the network decides. DMR fleets in hazardous zones pick R7a for certification and audio; TETRA agencies pick MTP850 for the standard. RadioSysHub programs both to regional firmware before dispatch.
Data Source: RadioSysHub Product Database (R7a & MTP850) — Verified: September 2, 2026
