West Coast
AREDN

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<WRAP center round important box 80%>HaLow devices are new to AREDN as of mid-2025, so you may want to consider them as very experimental at this point. Everything below could be very much wrong.</WRAP>

====== HaLow ======
<QUOTE>
HaLow (IEEE 802.11ah) is a Wi-Fi standard designed to operate in sub-GHz spectrum, including the 902–928 MHz ISM band (and amateur allocations near 900 MHz where permitted). It is optimized for long-range links and better penetration through foliage and terrain compared to 2.4/3.4/5.8 GHz microwave. Typical throughput is in the hundreds of kbps to a few Mbps depending on conditions, with a default 1 MHz channel width. HaLow supports standard IP networking, making it directly usable with AREDN mesh. Current support is available in the latest babel-only nightly builds.
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This is interesting because HaLow could extend AREDN into areas where microwave is not an option, providing slower but more resilient links through forests, valleys, and other obstructed environments.

===== Supported Devices =====

These devices have very limited flash memory, modest RAM, and a very slow CPU.  Fortunately, routing network traffic doesn't demand a lot of CPU.  Don't expect these to perform well under heavy load.

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[[https://heltec.org/project/ht-hd01/|Heltec HaLow Dongle HT-HD01]]
  * 32MB of flash memory
  * 128MB of RAM
  * 1 Ethernet port (can be used with VLANs to connect DtD, LAN and WAN)
  * Powered by USB-C (300mA @ 5V)
  * Does not appear to have any data connectivity over USB
  * Antenna connector on device is SMA Female

Note when purchasing: "AP" and "STA" devices both work with AREDN firmware.  The "AP" or "STA" designation only refers to the factory firmware configuration; the hardware is identical.
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[[https://heltec.org/project/ht-h7608/|Heltec HT-H7608]]
  * 32MB of flash memory
  * 128MB of RAM
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[[https://www.mouser.ca/ProductDetail/Morse-Micro/MM-HL1-EXT?qs=%252BHhoWzUJg4Iv3HqaYbEclw%3D%3D|Morse Micro HaLowLink1]]
  * 32MB of flash memory
  * 256MB of RAM
  * 2 Ethernet ports: #1 WAN; #2 LAN or DtD; both can be configured independently with VLANs for DtD, LAN and WAN
  * Powered by USB-C (2A @ 5V)
  * A good option for a mobile node: Mesh can be accessed over USB cable without an Ethernet cable or adapter
  * Seems to handle being a tunnel //client// reasonably well
  * Antenna connector on device is <fc #ff0000>RP-SMA</fc> Female
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[[https://www.alfa.com.tw/products/tube-ahm?variant=39857542725704|ALFA Network AHM R0C]]
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===== Installing AREDN Firmware =====
You will need to download a sysupgrade image from the [[https://downloads.arednmesh.org/afs/www/|AREDN Downloads]] page.

Be sure to select a babel nightly build on the right before typing your "Model" name.

{{ :next_steps:halow-download-nightly-babel.png?600 |}}

Continue with the steps listed on the [[https://docs.arednmesh.org/en/latest/arednGettingStarted/installing_firmware.html#morsemicro-device-install-process|AREDN MorseMicro device install process]] page.

===== Possible Use Cases and Limitations =====

As HaLow nodes are very low-powered, consider them to be "through-access" nodes that allow you to connect to services running elsewhere on the mesh.