Short Answer
TETRA or POLYCOM in the context of the site primarily concerns the communication of authorized operational organizations. DMR in the context typically relates to private operational radio for operators, security services, technical staff, or facility management. In Switzerland, POLYCOM in-house or site coverage may be mandatory depending on the site, risk, canton, and regulatory requirements. DMR operational radio does not replace this obligation.
Many misunderstandings arise because both topics are referred to as building radio. The distinction is crucial for planning, costs, and responsibilities.
Comparison of TETRA/POLYCOM and DMR
| Topic | TETRA/POLYCOM | DMR Operational Radio |
|---|---|---|
| Users | Operational organizations. | Operators and internal teams. |
| Purpose | Operational communication on site. | Operational and security communication. |
| Obligation | May be required by authorities. | Usually a business decision. |
| Responsibilities | Clarified with authorities/expertise. | Operators and radio partners. |
Why the Mandatory Question Must be Clarified Early
In Switzerland, POLYCOM in-house supply is often a relevant requirement for certain buildings, underground garages, tunnels, or special sites. Whether it is mandatory depends on the site and the responsible authorities. This clarification should occur early in the planning, renovation, or construction process.
Typical Errors
An operator plans DMR for the security service and assumes this will also meet the requirements of operational organizations. This is technically and organizationally incorrect.
FAQ
Does DMR replace POLYCOM site coverage?
No. DMR operational radio is a different system with a different purpose and different users.
Is POLYCOM mandatory in Swiss buildings?
Depending on the site, canton, risk, and requirements, in-house or site coverage may be mandatory. This needs to be clarified early.
Can both be necessary in the same building?
Yes. POLYCOM for operational organizations and DMR for operator communication can both be meaningfully or necessarily present simultaneously.
When should the clarification start?
As early as possible, ideally during the preliminary project or construction planning phase.
Sources and Currency
This page was created on 06.07.2026. Technical and regulatory information must be compared with current manufacturer data, standards, frequency specifications, and site conditions for specific projects.