P25 Phase 1 & Phase 2 Trunked Network Solutions for Mining

Mining needs secure, scalable, low-latency voice and data across wide, harsh sites. MiningTelecoms designs and delivers P25 Phase 1 and Phase 2 trunked networks — from new deployments to upgrades — using TN9400-based architectures, TB9400 simulcast capable base stations, and proven migration strategies for operational continuity, spectrum efficiency and mission-critical resilience.

Why choose P25 for mining?

  • Spectral efficiency & capacity: P25 Phase 2 TDMA provides two logical channels per 12.5 kHz physical traffic channel — effectively doubling voice capacity per channel vs Phase 1 FDMA. This is ideal for large mine fleets and growing voice demand.

  • Better simulcast performance: Phase 2’s H-DQPSK modulation and LSM options improve simulcast performance and spectrum efficiency across wide pits and haul corridors; TB9400 base stations are purpose-built for this.

  • Mission-critical reliability: TN9400 supports HA clusters, site and RFSS redundancy, fail-soft and site trunking so operations continue even under hardware/link failure.

  • Secure & standards-based: End-to-end encryption, OTAR/OTAP, centralized key management and P25 CAP validation for multi-vendor operation and mutual-aid interoperability.

Our offering — design through support

Mining Specific Two Way Radios BHP RioTinto Whitehaven, DMR Tier 3.

What MiningTelecoms delivers:

  • Site survey & RF planning for open pits, underground portals, haul roads and camps — coverage maps, delay-spread & simulcast design. (We use Tait’s LSM and simulcast guidance for wide area coverage planning.)
  • Reference architecture & core deployment — TN9400 RFSS and site controllers, TB9400 base stations, IP backbone design with QoS for RTP and control signalling. TN9400 is the core P25 controller platform for Phase 1 and Phase 2.
  • Timing and simulcast — design and supply GPS-disciplined 1PPS + 10 MHz reference and NTP (Spectracom SecureSync recommended) to meet Phase 2 timing requirements and prevent reversion to Phase 1.
  • Migration & cutover planning — phased or big-bang migration templates, TB9400/TB7300/TB9100 guidance, TN9400 software licensing, and fallback strategies so critical comms remain live during the transition.
  • Interoperability & gateways — TN9500 inter-network gateway for bridging legacy analog/DMR/MPT networks during migration and multi-agency interconnect.
  • Dispatch, AVL & analytics — CSSI/CSSI console integration, voice recording solutions (Eventide/Exacom) and fleet management tools (EnableFleet/EnableMonitor).
  • Testing, training & O&M — acceptance test scripts, dispatcher & field user training, and managed services with SLAs.
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Key features & benefits (at a glance)

Phase 1 & Phase 2 support: deploy Phase 1 now and upgrade to Phase 2 later — TN9400 supports both and Phase 2 is upgradeable.

Twice the voice capacity (Phase 2): TDMA gives two logical traffic channels per physical channel, improving capacity without extra RF.

Simulcast & coverage: TB9400 + LSM/H-DQPSK deliver wide area simulcast with fewer sites.

Strict timing for Phase 2: 1PPS + frequency reference + NTP required; recommended redundancy and Spectracom SecureSync.

Scalable core: TN9400 capacities (examples: up to 250 sites/RFSS, 200k SU IDs, 60k talkgroups, 1,000 active audio connections).

Secure & manageable: centralized AAA, encrypted voice & data, OTAR and KMF key management.

DMR Tier 3 Coal Mine 960x640

Migration: Phase 1 → Phase 2 — low-risk upgrade path

Tait Tough Two Way Radios

We’ll design a migration plan based on Tait’s recommended approach:

  • Pre-migration audit: identify TB9100/TB7300/TB9400 mix, console compatibilities and talkgroup profiles. TB9100 is not Phase-2 capable for traffic channels; TB9400 is recommended for Phase-2 traffic channels.

  • Timing & backhaul readiness: add GPS/1PPS/10MHz/NTP where needed; confirm IP backbone meets latency/jitter/QoS needs (Tait’s backhaul guidance & per-channel bandwidth planning).

  • Software & licenses: upgrade TN9400 controllers to Phase-2 capable releases and load Phase-2/Simulcast feature licenses; TB9400 firmware & Phase-2 licenses where applicable.

  • Phased migration: allocate Phase-2 capable radios/talkgroups first, monitor Fleet Manager for Phase-2 affiliation, progressively convert sites/talkgroups to Phase-2 while keeping legacy Phase-1 radios supported.

  • Fallback & acceptance: test failsoft, site trunking, and reversion scenarios to ensure operations if timing or transport fails.

Typical technical footprint (example)

  • Core: Tait TN9400 RFSS cluster (HA) hosting Fleet Manager, DB, PSTN gateway, EnableMonitor/EnableFleet.

  • Site controllers: TN9400 site controller at each site (clustered for HA where required).

  • Base stations: TB9400 (Phase-2 capable) at traffic channels, TB7300 for Phase-1-only sites. All base stations in a simulcast channel group must be of same type.

  • Timing: GPS-disciplined 1PPS + 10 MHz ref + Stratum-1 NTP (Spectracom SecureSync recommended) with redundancy.

  • IP Backbone: dedicated IP backbone (microwave/leased fibre/E1/T1) with QoS (RTP/SIP), recommended per-channel bandwidth and jitter planning.

  • Gateway: TN9500 Inter-Network Gateway for interoperability and analog→digital migration.

Tait IP Back Bone image

Why MiningTelecoms?

  • Mining-first network design experience, RF modelling for large pits and haul roads, and proven migration plans.
  • Multi-vendor systems integrator and authorised dealer for Tait, Motorola and Kenwood — we design to P25 standards for vendor interoperability.
  • End-to-end delivery: site survey → reference design → install → commissioning → training → O&M.

FAQ (short)

  • Q: What’s the advantage of Phase 2?
    A: Phase 2 doubles voice capacity per physical traffic channel via TDMA and improves talker pre-emption; requires timing and linear transmitters but yields better spectrum efficiency for large networks.

  • Q: Can we reuse base stations and RF site hardware?
    A: Yes — TB9400 is Phase-2 upgradable; TB9100 is legacy and not Phase-2 capable for traffic channels, but can be used for control channels or Phase-1-only sites. Antenna combiners, towers and shelters are often reusable.

    Q: Does Phase 2 need more backhaul?
    A: Not necessarily — although Phase 2 creates two voice streams per physical channel, the half-rate vocoder and packet timing largely keeps overall bandwidth similar to Phase-1 planning. Still, plan for QoS and careful packetization to meet jitter/latency budgets.

CTA

  • Ready to design or upgrade to P25 Phase 1/Phase 2?
    Book a technical scoping meeting with our P25 specialists.
    Phone: 1800 551 427

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