Inside the GW16170: High-Power Wi-Fi HaLow for Industrial IoT

What Wi-Fi HaLow is Doing Differently

We've written a full technical breakdown of 802.11ah, but for engineers who just need the short version: 

Wi-Fi HaLow gets its range and wall-penetration from two things working together: a narrower radio channel that's more sensitive to weak signals, and a lower frequency band that travels farther and pushes through obstacles better. It’s why old cordless phones and garage door remotes used sub-GHz frequencies instead of 2.4 GHz. 

Vendors usually call out “10x the range” and that number is true in open fields with a clear line of sight. Indoors or on an industrial factory, the realistic gain is smaller, but the signal still gets through a steel enclosure, a tank wall, or a field of trees that would block regular Wi-Fi. 

Just as important, Wi-Fi HaLow is still normal Wi-Fi under the hood. It runs standard TCP/IP, not a proprietary protocol through a gateway, and it uses the same WPA3 security as the rest of the Wi-Fi family. A Wi-Fi HaLow-connected sensor shows up on your network the same way a Wi-Fi camera would. There is no custom protocol adapter required to get its data where it needs to go, unlike Zigbee or LoRaWAN.

What's Actually on the GW16170

The GW16170 is built around the Morse Micro MM8108-M20-US, a high-power module version of Morse Micro's second-generation MM8108 Wi-Fi HaLow SoC. The MM8108 SoC on its own integrates radio, PHY, and MAC in a 5x5 mm BGA package with an integrated power amplifier rated at 26 dBm. 

The MM8108-M20 module pairs that same SoC with an external high-power amplifier and a SAW filter tuned specifically to the 902–928 MHz North American band, pushing output to up to +28.5 dBm. 

That 2.5 dB gap is only part of why Ezurio offers two Wi-Fi HaLow cards. The GW16167 uses the standard MM8108 at up to +26 dBm across the broader 850–950 MHz band, while the GW16170 uses the MM8108-M20-US for North American deployments that need more headroom. The extra output helps with longer links and better margins through steel or heavy equipment. The M20-US’s region-specific SAW filter is also relevant if your site sits near active adjacent LTE bands, where filtering can matter as much as raw transmit power. 

Full spec summary:

The M.2 2230 E-Key connector can carry PCIe, USB 2.0, I²S, and SDIO, but the GW16170 only uses the USB 2.0 path. That keeps bring-up simple as there is no PCIe driver stack to deal with and USB 2.0's 480 Mbps ceiling is nowhere near a bottleneck for a radio that tops out at 43.33 Mbps. It also drops into existing M.2 E-Key sockets on Gateworks single board computers with no host-side redesign and Linux just sees it as a standard IP-capable USB network device.

Where the High-Power Variant is Important

Both GW16170 and GW16167 share Wi-Fi HaLow's core advantages: native IP, WPA3 security, support for large numbers of devices per access point, and multi-year battery life. The GW16170 is the right call when your link is right at the edge of what standard power can close. 

Big industrial sites: Steel structures and equipment consume signal strength fast. Think of a large manufacturing plant where a sensor on one end of the floor needs to reach an access point on the other side of a steel-frame building. That extra 2.5 dB of power is usually the difference between a link that drops out and one that works. 

Agriculture and large campuses: The goal here is to cover as much ground as possible from one access point before you need to add a second one. A farm using irrigation sensors across a few hundred acres or a university spreading building sensors across campus are both good fits. 

Outdoor asset tracking and remote monitoring: Shipping yards and utility substations need sensors scattered across a wide area and running cable to each one is not realistic. 

Security cameras: Cameras and low-rate sensors often need to share the same access point. Wi-Fi HaLow can put cameras on a wider channel for more bandwidth while sensors share the same access point on a narrow one. This is especially useful for perimeter security where cameras and door & motion sensors both need to talk to the same AP.

Final Thoughts

For the full technical breakdown of Wi-Fi HaLow's channelization, link budget derivation, RAW/TWT power-saving mechanisms, and real-world field trial data, see the GW16170 product page or reach out to discuss a design. 

For samples, visit ezurio.com/gw16170