DMR Capacity Plus Trunking
Powerful Fleet Network Upgrades
Boosting network capacity and eliminating communication bottlenecks is critical for growing operations. DMR Capacity Plus Trunking—specifically utilizing the Motorola MOTOTRBO Capacity Plus architecture—is an intelligent, entry-level digital trunking platform designed to drastically expand the voice and data capabilities of your two-way radio infrastructure.
Operating without the need for a costly, centralized hardware controller, this software-driven solution dynamically pools and allocates available channel timeslots across your repeaters. By utilizing advanced 2-slot TDMA (Time Division Multiple Access) technology, Capacity Plus automatically assigns open frequencies to users in real time. This intelligent routing prevents busy signals and ensures instant, unbroken connectivity for expanding fleets.
Implementing a single-site or wide-area Multi-Site Capacity Plus framework allows your organization to support up to 1,600 radio users per site while transmitting high-density voice and dedicated data paths simultaneously. This scalable infrastructure integrates advanced features like GPS location tracking, text messaging, and rapid emergency alerts onto a single device. It provides a highly cost-effective digital migration path, maximizing your spectral efficiency and team coordination across industrial plants, transportation hubs, and large commercial facilities.
ELIMINATE BUSY SIGNALS WITH MOTOTRBO CAPACITY PLUS!
The Core of Dynamic Channel Pooling
To fully leverage your FCC-licensed radio spectrum, your system needs to be smart. In a conventional radio setup, talkgroups are assigned to specific, static channels. If a channel is in use, everyone else on that channel has to wait, even if other repeaters in your rack are completely idle.
Traditional trunking solves this by dedicating a "control channel" to constantly direct radio traffic. However, giving up an entire frequency just to manage traffic wastes valuable bandwidth and requires expensive, centralized computer hardware.
Motorola MOTOTRBO Capacity Plus offers the perfect middle ground. It provides the dynamic channel-pooling benefits of a trunked system but utilizes a decentralized software architecture. The repeaters talk to each other over a local network, continuously broadcasting which channels are open. When a user presses the Push-to-Talk button, their radio instantly jumps to the first available time slot. This maximizes every ounce of your licensed spectrum, eliminating busy tones without the heavy capital expenditure of a Tier III trunking controller.
5 Engineering Standards for DMR Capacity Plus Systems
When architecting a high-capacity network for your enterprise, Teltra focuses on engineering metrics that guarantee system availability, scalability, and security. We prioritize the following five technical standards for all Capacity Plus deployments:
| Engineering Standard | Operational Benefit | Ideal Capacity Plus Application |
| 1. Decentralized Architecture | Eliminates the dedicated control channel, maximizing usable voice frequencies and reducing hardware costs. | Rapidly expanding manufacturing facilities and distribution centers. |
| 2. 2-Slot TDMA Technology | Splits a single 12.5 kHz frequency into two simultaneous talk paths, instantly doubling channel capacity. | Busy logistics hubs and high-density hospitality environments. |
| 3. Massive User Capacity | Dynamically pools frequencies to seamlessly support up to 1,600 users and 24 data paths per site. | Massive event stadiums, universities, and regional utility plants. |
| 4. Multi-Site IP Scalability | Links up to 15 sites over an IP network, allowing users to roam geographically without changing channels. | Multi-campus corporate networks and cross-city public transit fleets. |
| 5. Integrated Data & Telemetry | Prioritizes and manages high-speed data alongside voice traffic for reliable GPS tracking and text messaging. | Fleet telematics, automated dispatch systems, and remote worker safety. |
Custom Digital Infrastructure Engineered by Teltra
Teltra provides comprehensive engineering support from the initial system audit to the final hardware programming. We evaluate your current user density, frequency allocations, and operational workflow to design a scalable digital backbone tailored to your facility.
Software-Driven System Upgrades
If your facility is already operating a standard MOTOTRBO conventional network, migrating to a digital trunking platform is highly cost-effective. Teltra engineers can upgrade your existing compatible repeaters (such as the SLR series) via software licenses and a simple LAN connection. This non-disruptive upgrade path protects your initial hardware investment while instantly multiplying your communication capacity to handle new personnel.
Single-Site vs. Multi-Site Capacity Plus
Teltra customizes the architecture based on your physical footprint. For a massive, single-location operation—like a towering skyscraper or a mega-factory—we deploy Single-Site Capacity Plus to pool all local frequencies together. If your operation spans multiple cities or branches, we deploy Multi-Site Capacity Plus. This links up to 15 disparate sites over your corporate IP network. Field workers can drive from Site A to Site B, and their radios will automatically roam and connect to the strongest tower without any manual intervention.
Prioritized Emergency and Data Traffic
In high-density environments, emergency communications cannot wait in line. Teltra programs your DMR Capacity Plus Trunking network with advanced transmit interrupt protocols. If a worker presses their SOS button or a supervisor needs to broadcast a facility-wide evacuation, the system immediately halts standard radio chatter and clears a path for the priority transmission. We also dedicate specific time slots exclusively for data transfer, ensuring that GPS location pings and text messages never clog up your critical voice channels.
DMR Capacity Plus Trunking: Frequently Asked Questions
What is Motorola MOTOTRBO Capacity Plus?
Motorola MOTOTRBO Capacity Plus is an advanced, software-driven digital trunking platform. It dynamically pools all of your available radio frequencies together. When a user presses the talk button, the system automatically routes them to an open channel in milliseconds, vastly increasing the number of users your network can support without dropping calls or giving busy signals.
How does Capacity Plus differ from traditional trunking?
Traditional digital trunking (like DMR Tier III) requires an expensive, centralized hardware controller and dedicates an entire frequency strictly to managing traffic. Capacity Plus is decentralized. The repeaters manage the traffic among themselves over an IP network, which frees up all of your licensed frequencies for actual voice and data conversations, significantly reducing infrastructure costs.
Can Capacity Plus handle GPS and data tracking?
Yes. Because Capacity Plus utilizes 2-slot TDMA technology, it can efficiently handle dense data streams. Teltra can configure your network to use specific time slots exclusively for data transfer, allowing your dispatch center to track real-time GPS locations, send text messages, and receive automated telemetry alerts without ever interrupting critical voice communications.
Ready to talk?
Contact Teltra today to discuss upgrading your organization to a digital trunking platform. Learn more about the technical advantages of Motorola MOTOTRBO Capacity Plus, multi-site roaming, and frequency coordination requirements.