As IoT ecosystems grow denser and more mission-critical, deploying reliable LoRaWAN® coverage indoors has become a challenge for integrators and solution architects. The Digi HX15 Gateway delivers a scalable and powerful foundation for indoor LoRaWAN® networks—balancing gateway density, RF sensitivity, and backhaul flexibility. When paired with AG Antenna’s precision-engineered antennas, this solution ensures optimal performance in even the most complex indoor environments.
Meet the Digi HX15: A Smart, Scalable Indoor LoRaWAN® Gateway
The Digi HX15 is a purpose-built, indoor LoRaWAN® gateway designed to support up to 1.5 million messages per day, with eight simultaneous receive channels and one transmit channel. Built with deployment simplicity in mind, the HX15 fits neatly into wall-mounted or tabletop environments while delivering serious performance for smart buildings, campuses, warehouses, and industrial IoT sites.
Key features include:
- Support for US915 and EU868 LoRaWAN® bands
- Model variants with either Gigabit Ethernet or cellular backhaul (Cat-1 or Cat M1/NB-IoT)
- +27 dBm TX power and -138 dBm RX sensitivity
- Pre-activated SIM (cellular models) with fallback options
Powerful Processing and Reliable Backhaul
At the core of the HX15 is Digi’s own ConnectCore MP157 SoC, a dual-core Cortex-A7 processor running Digi Embedded Yocto Linux. With 512MB RAM and 8GB eMMC flash, the HX15 handles gateway packet routing, diagnostics, and over-the-air management without performance bottlenecks.
For backhaul, the gateway offers:
- 10/100/1000 Ethernet (RJ-45) for wired deployments
- Optional LTE Cat 1 or Cat M1/NB-IoT cellular modem with 2G fallback
- Micro SIM slot for use with global or pre-provisioned Digi X-ON service
This flexibility makes the HX15 ideal for both fixed building installations and locations where Ethernet isn't feasible.
LoRaWAN® Capacity and RF Channel Architecture
With eight Rx channels and support for region-specific frequency plans (like US915 or EU868), the HX15 can simultaneously receive multiple uplinks, even in dense deployments. Transmission power reaches +27 dBm, and receiver sensitivity is as low as -138 dBm—delivering excellent link budgets for indoor, low-power end devices.
These performance specs enable the HX15 to handle:
- Smart building sensors (temperature, motion, leak detection)
- Inventory and asset tracking in warehouses or retail
- Infrastructure monitoring across campuses or municipal buildings
Cloud-First Provisioning with Digi X-ON
The HX15 is designed for minimal deployment friction. Using Digi’s X-ON platform, provisioning can be completed via QR code scan and mobile app. Features of the Digi X-ON platform include:
- Integrated LoRaWAN® network and join servers
- Secure provisioning hierarchy with full multi-tenant capabilities
- Real-time health metrics, alerts, and RX/TX counters
- Data stream APIs (MQTT, WebSocket) for easy integration
This cloud-first approach significantly reduces configuration time and centralizes control of large gateway fleets.
Built for Indoor IoT Environments
Unlike rugged outdoor gateways, the Digi HX15 is tailored for clean, space-conscious indoor installations:
- USB-C 5VDC input (5V @ 2A)
- Status LEDs for LoRa TX/RX, power, and backhaul status
- Compact housing: ~5.75” × 5.75” × 1.25” (146mm x 146mm x 32mm)
- Operating temperature: -25 °C to +55 °C
Its lightweight form factor and clean lines make it ideal for ceiling tiles, wiring closets, or even shelf-level deployments in office buildings and retail environments.
AG Antenna Solutions: Maximizing RF Efficiency for LoRaWAN®
Digi’s impressive internal design is only half of the equation. RF performance is limited by the antenna system—and that’s where AG Antenna steps in.
Our expert antenna solutions for the HX15 include:
- LoRaWAN® Omnidirectional and Directional Antennas tuned to EU868 or US915
- Compact, low-profile antennas for discrete installations
- Antenna placement consulting to optimize coverage and minimize multipath or attenuation
Proper antenna selection and placement are critical for achieving the -138 dBm sensitivity potential of the HX15 in real-world indoor environments filled with RF reflectors and obstructions.
See all DIGI HX15 Gateway LoRaWAN® Antennas
See How to Connect Antennas to DIGI HX15 - Antenna Port Guide
Indoor Use Cases That Demand RF Excellence
The Digi HX15 is especially suited for applications such as:
- Smart Buildings: HVAC monitoring, room occupancy, access control
- Logistics & Retail: inventory beacons, cold chain compliance, dock door monitoring
- Campus Deployments: asset tracking across dormitories, labs, or event spaces
- Industrial Monitoring: machine status reporting, predictive maintenance alerts
When coverage and message integrity are critical, the antenna system must be engineered to support consistent signal margins across partitions, materials, and distances.
Bringing it All Together
The Digi HX15 is a flexible, cost-efficient LoRaWAN® gateway that fits perfectly into modern indoor environments. Its compact design, cloud-based provisioning, and flexible backhaul make it ideal for scalable IoT solutions.
When paired with AG Antenna’s high-performance LoRaWAN® antennas, your deployment gains the RF resilience and signal coverage needed to support dense sensor ecosystems and ensure long-term reliability.
Ready to roll out your LoRaWAN® deployment? Contact AG Antenna for help selecting and integrating the right antennas to match your Digi HX15 gateway.