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Health: exposure measured where people live: the systems behind it. The loop, step by step: 1. A valley site at first light. 2. Sensor, link, edge and console stand ready. 3. Cloud and wind sweep up the valley. 4. The station and the vault register it. 5. Time and place are fixed to every sample. 6. Signed packets hop over the radio link. 7. The relay forwards sealed packets untouched. 8. Signatures are checked before any model runs. 9. The edge model checks it against its limit. 10. The edge releases confirmed results only. 11. The alert reaches the operator console. 12. The alert arrives with its evidence attached. 13. Record, proof and action are archived together. 14. Everything settles back to idle.

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A valley site at first light

Nexus Observatory

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Health

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Systems and technologies
The systems behind health.

The technologies that carry this industry’s observations, ranked against what it needs to observe and drawn from across the spectrum.

Plan a deploymentUse casesOpen the explainer
  1. Health · Systems and technologies

    Exposure, measured where people live

    Air quality, heat and water monitoring for public-health programmes, exposure data aligned with the places it affects, and connectivity for clinics at the edge of the network. Needs: fine particles and ozone, heat and humidity, drinking-water quality, conditions for disease vectors and connectivity for clinics.

  2. Platform · Sensors & instruments

    Measurements that carry their own proof

    Weather and environment stations to WMO practice, RF spectrum sensing in the band, and calibration that is traceable, recorded and repeated. Every value leaves with its metadata, quality flag and provenance. Or buy the observations and leave the hardware to us: Sensing as a Service.

    Sensors & instruments
  3. Platform · Data & licensing

    Grid data, licensed for your use

    Research, commercial API, enterprise and government tiers, the licence of every source carried through to every product, routes from licensed to open release, and residency fixed by contract. It is delivered and supported by Nexus Observatory Inc. The evidence travels with the data wherever it goes.

    Data & licensing
  4. Platform · Connectivity

    Private 5G, AI-RAN and orbit, on site

    Standalone private 5G and O-RAN, AI-RAN on shared accelerated compute, LEO and GEO backhaul and 3GPP direct-to-device, LPWAN and mesh for sensors over kilometres, PTP timing inside the budget, and the spectrum route for each country. Every reading and every change leaves a record that can be checked later.

    Connectivity
  5. Platform · Field services

    Survey to decommission, one accountable crew

    Ground, RF and power surveyed before anything is chosen, installation and commissioning to the plan, a Managed Site run for you, support by plan, training on your own site, and decommissioning with every part recorded. Changes are versioned, tested and reversible.

    Field services
  6. Trust

    Every node proves what it is

    A node joins only after its hardware root of trust answers an attestation challenge. Keys stay in secure hardware, software arrives signed, and every reading carries a signature, so its origin can be checked by anyone downstream without asking us.

  7. How it scales

    One base unit, repeated

    A programme starts with one base node and the instruments it reads. A station adds power and radio, a site adds a relay, a fleet repeats the proven site across many places, and a network federates fleets through edge and core. Capacity grows by adding units, never by replacing what works.

  8. Updates

    Updates in rings, with rollback

    Software and configuration reach the fleet in rings: a canary site first, then a few, then all, each ring gated on health and data completeness. A failed gate stops the wave and returns each node to its last good release, without a site visit.

  9. Operations

    Every node watched, every incident closed

    The operations console shows every node with its state, its plan and its evidence. Alerts arrive with their data and a runbook; acknowledging one opens a work order, and an incident closes only when the cause is recorded and the fix verified.

  10. Field service

    One crew, from survey to repair

    The same crew surveys, installs, commissions, calibrates and repairs, working from the site’s own record. Each visit updates it, so the next crew knows exactly what is there, when it was last checked and why it was changed. Spares and references are planned from that history.

  11. Failure and recovery

    When a node fails, the fleet knows first

    When a node goes silent or a sensor drifts, the node buffers its data, fails over to a second link where one exists, and the alert carries the evidence a responder needs. Nothing is lost and nothing is counted twice.

  12. What you get

    Environmental exposure monitoring for health programmes

    Heat, air and water exposure measurements around facilities and communities; no diagnosis or treatment. Delivered as managed service and data licence, for health authorities, hospital networks, employers. Scale: City to national. Service levels are written as numbers you can measure on your own dashboard.

    Talk to sales
  13. Next step

    Plan a health deployment

    Tell us the sites, the measurements and the people who will use them. We reply with a design and a scope for health. An engineer replies with a survey proposal and a scope, and the plan grows from one site to the network you need, at your pace.

    Plan a deploymentOpen the StudioRead the stories

01In situ sensors and instruments

RF, acoustics, cameras and radar.

Frontier · In situ sensors and instruments · RF, acoustics, cameras and radar

Event-based and neuromorphic cameras

Sensors that report changes per pixel at microsecond rates with very low power.

EMVA 1288 (reference for characterisation)

In situ sensors and instruments · RF, acoustics, cameras and radar

Spectrum monitoring receivers

Measured occupancy, interference and emissions across bands at a site.

ITU-R Handbook on Spectrum Monitoring · ITU-R SM.1880 (spectrum occupancy measurement)

In situ sensors and instruments · RF, acoustics, cameras and radar

Direction finding and emitter geolocation

Locating interference and unknown emitters by angle and time difference of arrival.

ITU-R SM.854 (direction finding) · ITU-R Handbook on Spectrum Monitoring

In situ sensors and instruments · RF, acoustics, cameras and radar

Acoustic and noise monitoring

Class 1 sound level meters and microphone arrays for environmental noise and event detection.

IEC 61672-1 (sound level meters) · ISO 1996-2 (environmental noise)

In situ sensors and instruments · RF, acoustics, cameras and radar

EO/IR cameras

Visible and thermal cameras characterised for sensitivity, noise and resolution.

EMVA 1288 (camera characterisation) · ISO 12233 (resolution measurement)

In situ sensors and instruments · RF, acoustics, cameras and radar

PTZ and networked video systems

Pan-tilt-zoom and fixed cameras for wildfire watch, sites and coastlines, with interoperable control.

IEC 62676 series (video surveillance systems) · ONVIF Profiles S, T and M

All 9 in this layer

02IoT, LPWAN and mesh

Low-power wide-area networks.

IoT, LPWAN and mesh · Low-power wide-area networks

LoRaWAN

Long-range, low-power star-of-stars networks in licence-exempt bands for sensors over kilometres.

LoRaWAN L2 1.0.4 (TS001-1.0.4) · LoRaWAN Backend Interfaces (TS002)

IoT, LPWAN and mesh · Low-power wide-area networks

LoRaWAN Regional Parameters

Per-region channel plans, data rates, power limits and duty cycles that a deployment must follow.

LoRaWAN Regional Parameters RP002-1.0.4

IoT, LPWAN and mesh · Low-power wide-area networks

LR-FHSS and LoRaWAN relay

Frequency-hopping modulation for dense and satellite links, and relays that extend coverage into shadowed sites.

LoRaWAN Regional Parameters RP002-1.0.2 and later (LR-FHSS data rates) · LoRaWAN Relay specification (TS011)

IoT, LPWAN and mesh · Low-power wide-area networks

NB-IoT and LTE-M

Licensed cellular IoT with deep coverage, mobility (LTE-M) and operator-managed security.

3GPP TS 36.300 (E-UTRA, Rel-13 onward) · GSMA LTE-M and NB-IoT deployment guides

IoT, LPWAN and mesh · Low-power wide-area networks

Power saving mode and eDRX

Cellular sleep and extended paging cycles that set battery life for cellular sensors.

3GPP TS 23.682 (MTC architecture) · 3GPP TS 24.301 (NAS)

IoT, LPWAN and mesh · Low-power wide-area networks

5G RedCap and eRedCap

Reduced-capability NR devices for cameras, wearables and industrial sensors on 5G networks.

3GPP TS 38.300 (Rel-17 RedCap, Rel-18 eRedCap)

All 9 in this layer

035G and 6G radio access networks

Private networks and RAN sharing.

5G and 6G radio access networks · Private networks and RAN sharing

Standalone non-public networks (SNPN)

Fully separate private 5G networks with their own identifiers, core and subscriptions.

3GPP TS 23.501 clause 5.30.2

5G and 6G radio access networks · Private networks and RAN sharing

Public network integrated NPN (PNI-NPN)

Private networks delivered as slices or DNNs of a public network, with closed access groups.

3GPP TS 23.501 clause 5.30.3

5G and 6G radio access networks · Private networks and RAN sharing

Neutral host networks

One shared network that serves several operators’ subscribers in buildings, campuses or rural corridors.

3GPP TS 23.251 (network sharing) · 3GPP TS 23.501 (SNPN with credentials from a separate entity)

5G and 6G radio access networks · Private networks and RAN sharing

RAN sharing (MORAN and MOCN)

Operators sharing radios and sometimes spectrum to cut cost in low-density areas.

3GPP TS 23.251 · 3GPP TS 32.130 (network sharing management)

5G and 6G radio access networks · Private networks and RAN sharing

Industrial 5G LAN and TSN integration

Layer-2 group services and time-sensitive networking bridging for operational technology.

3GPP TS 23.501 clauses 5.27 and 5.29 · 3GPP TS 22.104

5G and 6G radio access networks · Private networks and RAN sharing

Shared and local spectrum for private networks

CBRS-type tiered access and local licences that let enterprises and communities run their own networks.

FCC 47 CFR Part 96 (CBRS) · ISED non-competitive local licensing framework (3900–3980 MHz)

All 7 in this layer

04In situ sensors and instruments

Air quality and atmospheric composition.

In situ sensors and instruments · Air quality and atmospheric composition

Reference gas analysers

Continuous analysers for nitrogen oxides, ozone, carbon monoxide and sulphur dioxide by reference methods.

EN 14211 (NOx) · EN 14625 (O3) · EN 14626 (CO)

In situ sensors and instruments · Air quality and atmospheric composition

Particulate matter monitors

Gravimetric and automated PM10 and PM2.5 measurement.

EN 12341 (gravimetric PM) · EN 16450 (automated PM monitors) · US EPA 40 CFR Part 53 (reference and equivalent methods)

In situ sensors and instruments · Air quality and atmospheric composition

Low-cost sensor systems

Dense, cheaper sensor networks evaluated and corrected against reference sites.

CEN/TS 17660-1:2021 (sensor systems, gaseous pollutants) · US EPA performance targets for air sensors

In situ sensors and instruments · Air quality and atmospheric composition

Ambient air quality frameworks

Regulatory objectives and data quality objectives that set what monitoring must achieve.

Directive (EU) 2024/2881 (ambient air quality) · Canadian Ambient Air Quality Standards (CCME)

In situ sensors and instruments · Air quality and atmospheric composition

Greenhouse gas and reactive gas monitoring

High-precision carbon dioxide, methane and nitrous oxide analysers on tall towers and baseline sites.

WMO GAW measurement guidelines · WMO Global Greenhouse Gas Watch

In situ sensors and instruments · Air quality and atmospheric composition

Aerosol optics and sun photometry

Aerosol optical depth, absorption and scattering for smoke, dust and satellite validation.

WMO GAW aerosol guidelines

All 7 in this layer

05Spectrum, timing and PNT

Spectrum monitoring and interference management.

Frontier · Spectrum, timing and PNT · Spectrum monitoring and interference management

Distributed low-cost SDR sensor networks

Many inexpensive receivers at sites forming a continuous spectrum picture.

Rec. ITU-R SM.1880 · ITU Handbook on Spectrum Monitoring

Frontier · Spectrum, timing and PNT · Spectrum monitoring and interference management

Machine-learning signal classification

Models that recognise signal types and anomalies in monitoring data.

ITU Handbook on Spectrum Monitoring

Spectrum, timing and PNT · Spectrum monitoring and interference management

Fixed, transportable and mobile monitoring stations

Calibrated receivers and antennas that measure what is actually on air around a site or region.

ITU Handbook on Spectrum Monitoring · Rec. ITU-R SM.1880 (spectrum occupancy measurement)

Spectrum, timing and PNT · Spectrum monitoring and interference management

Spectrum occupancy measurement

Statistics of channel use over time that inform planning, sharing and licence applications.

Rec. ITU-R SM.1880

Spectrum, timing and PNT · Spectrum monitoring and interference management

Emitter location (TDOA and angle of arrival)

Multi-sensor techniques that locate interference sources for resolution with the regulator.

ITU Handbook on Spectrum Monitoring

Spectrum, timing and PNT · Spectrum monitoring and interference management

Interference investigation and reporting

A documented process from detection to resolution, using international reporting formats where needed.

ITU RR Art. 15 · ITU RR Appendix 10 (harmful interference report)

All 8 in this layer

06Field operations and lifecycle

Health, safety and evidence records.

Frontier · Field operations and lifecycle · Health, safety and evidence records

Signed photographic evidence

Field photos with signed capture time, location and device for audit.

C2PA Technical Specification 2.x

Field operations and lifecycle · Health, safety and evidence records

Occupational health and safety management

Hazard identification, risk control and worker participation across all field work.

ISO 45001:2018 · Canada Labour Code Part II

Field operations and lifecycle · Health, safety and evidence records

Tower and structure work

Safe climbing, rigging, rescue and RF awareness on communication structures.

ANSI/ASSP A10.48 · CSA Z259 series (fall protection) · ANSI/ASSP Z359 (fall protection code)

Field operations and lifecycle · Health, safety and evidence records

Electrical safety

Arc flash and shock risk assessment, safe work practices and lockout.

CSA Z462 · NFPA 70E · CSA Z460 (control of hazardous energy)

Field operations and lifecycle · Health, safety and evidence records

RF safety for workers

Exposure limits, signage and power-down procedures near transmitters.

Health Canada Safety Code 6 · IEC 62232

Field operations and lifecycle · Health, safety and evidence records

Remote and lone work

Check-in, communications, first aid and evacuation plans for isolated sites.

ISO 45001:2018 · Canada Occupational Health and Safety Regulations

All 9 in this layer

07Every domain

The rest of the spectrum.

The domains whose layers serve this industry, each with its full directory.

Layers · 8 · items · 61

In situ sensors and instruments

Instruments placed in the air, water, ground and spectrum, from weather stations to seismometers, radars and cameras, with the calibration, metadata and quality control that make their readings evidence.
Layers · 8 · items · 59

Data, software and interoperability

How observations move from the edge into stores, catalogues and APIs with their provenance, licence and residency attached, and how they interoperate through open standards and the open Observatory Protocol.
Layers · 8 · items · 62

5G and 6G radio access networks

The radio access network from site to spectrum: macro, small cells, DAS and repeaters, massive MIMO, NR bands and TDD synchronisation, NR features such as RedCap, positioning and sidelink, private and shared networks, Wi-Fi coexistence, 6G and ISAC, and the planning and assurance that keep it working.
Layers · 8 · items · 60

AI-RAN and Open RAN

Disaggregated, software-defined and AI-assisted radio access: the O-RAN architecture and its open interfaces, 7.2x fronthaul, RAN intelligent controllers with xApps and rApps, SMO and O-Cloud, accelerated L1, shared GPU infrastructure for RAN and AI, AI/ML in the 3GPP air interface, energy saving, and the test and integration work that makes multi-supplier RAN deployable.
Layers · 8 · items · 60

Core and transport networks

The networks behind the radio: the 5G core and its functions, slicing and edge breakout, IMS voice and emergency calling, fronthaul, midhaul and backhaul over microwave, E-band, fibre, free-space optics and satellite, IP/MPLS and segment routing, IPv6, automation and intent, and the security that holds it together.
Layers · 8 · items · 66

Satellite and space systems

The space segment end to end: orbits and constellations, spacecraft buses, communications and Earth observation payloads, inter-satellite links, tracking and command, space safety, launch, and the licensing and filings that let a system operate over a site.
Layers · 8 · items · 63

Ground segment

Everything on the ground that talks to spacecraft: gateways and teleports, user terminals, modems and software-defined radio, shared antenna networks, CCSDS protocol stacks, mission control, data processing and the spectrum coordination behind each earth station.
Layers · 7 · items · 59

Spectrum, timing and PNT

The shared foundations every network and sensor depends on: how spectrum is licensed, shared and monitored, GNSS positioning and its corrections, packet timing with PTP and SyncE, grandmasters and holdover, resilient PNT alternatives, and the detection of interference, jamming and spoofing.
Layers · 8 · items · 54

IoT, LPWAN and mesh

The radios, networks, gateways, device management and field protocols that connect low-power sensors and controllers to the grid, sized to a measured power budget.
Layers · 8 · items · 66

Field operations and lifecycle

Everything that happens on the ground across a site’s life: survey, permits, design packs, logistics, installation, acceptance, training, operations, maintenance, upgrades, decommission and recycling, done safely and recorded as evidence.

Bring us the site.

Survey, design, deployment and operation for health. The form names who receives your details.

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The systems behind health.

Reference design, drawn to scale · drag to turn