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Alerts

AREDN highly recommends upgrading to AREDN security release v3.21.4.0
For more information see the Latest Docs page

News


ARRL Call to Action in Defense of Part 97 Allocations in the 3 and 5 GHz Bands

The FCC WT Docket 19-348 and WT Docket 19-138 will severely curtail growth of one of the newest and most effective means for Amateurs to support emergency communications.  Existing installations will be severely curtailed or, with no reasonable alternatives, be forced to cease operations.  Thousands of hams have built or are in the process of constructing high-speed data networks in the 3 & 5 GHz ham microwave allocations.

Background

AREDN (Amateur Radio Emergency Data Network) was an outgrowth of the ARRL working group on High-Speed Multimedia (HSMM).  It has evolved over the past 10-12 years from its first implementation by Broadband Hamnet (BBHN).  Over the years the AREDN Project has developed software support for nearly 70 commercial wireless routers---moving them from their Part 15 allocation into adjacent Part 97 allocations in the .9, 2, 3, and 5 GHz bands---providing an inexpensive and easy way for hams to implement high-speed (up to 144 Mbps) data networks in support of Emergency Operations Centers (EOCs), Non-governmental Agencies (NGOs) and first responders.  The project has twice been recognized by the league for the significance of its achievements by awarding the Project the ARRL Microwave Development Award in 2014 and 2018.
...

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Updated date: Monday, December 9, 2019 - 16:27


AREDN Receives Grant from Yasme Foundation

The AREDN Project was recently honored by the Yasme Foundation with the award of a $7000 grant for the purchase of a 20 GHz spectrum analyzer.  The analyzer will be used to understand the characteristics of 802.11 protocols in the unique, long-distance mesh, configurations of AREDN implementations.  It will also afford us the ability to measure, and perhaps, improve the quality of transmissions emanating from AREDN-supported devices.

The AREDN Project team is grateful to the Yasme Foundation for taking the time to consider its need for a spectrum analyzer.  Andre Hansen, K6AH, in speaking for the entire team said, “To be awarded this grant is particularly gratifying for us because it acknowledges the value the AREDN Project affords Amateur Radio.”

The Yasme Foundation is a 501(c)(3) not-for-profit corporation organized to support scientific and educational projects related to amateur radio. Their support includes long distance communication (DXing), the introduction and promotion of amateur radio in developing nations and encouraging youth participation in amateur radio.

More information about the Yasme Foundation may be found at https://www.yasme.org

AREDN® is a registered trademark of Amateur Radio Emergency Data Network, Inc., a non-profit corporation.

Updated date: Thursday, June 27, 2019 - 19:23

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Announcements


Standardized NanoStation XM Ethernet port configuration


The NanoStation XM devices now have fully functional ports - both main and secondary.   This capability will be in Dec 3, 2018 nightly build.   The behavior is now same as NanoStation XW devices.   POE Passthough is also functional.   

This new capability means the following usage is significantly simplified to setup.   At local community events when setting up ipCams around a parade route or event area, there can be a station with 2 nodes -- incoming link on one channel/band and outgoing link on another channel/band.  This means many HD video quality signals can go through the station as this relay station does not share the same frequency.

Before:   

2 mesh nodes, 1 ipCam, 1 5-port switch, 4 way power split to all devices, junction box.   Lots of labor and points of failure to build and configure the enclosure and cabling.

After:

2 mesh nodes, 1 ipCam, daisy chain the cat5 cables though these devices, no enclosure.   


Issues to consider when deploying:


1) I've seen a NSM2 XM device...

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AREDN Documentation Repository

Thanks to a great suggestion and some content from Steve KC0EUW, we now have an AREDN document repository on GitHub.

If you just want to read what is in the library, you can view the docs on ReadTheDocs.io at https://arednmesh.readthedocs.io/en/latest.
You can also find this documentation by clicking on the Docs menu item on the front page and making your choice from the dropdown list. 
We added a new Network Design Guide to help you in planning your local AREDN mesh network.

If you are interested in contributing to the rapidly growing set of AREDN related information, you can easily do so on GitHub. This works the same way as if you were contributing code to the project.
There are detailed instructions on how you can contribute to AREDN documentation in the README.md file 

Summary Instructions:
After...

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Installing AREDN on Mikrotik using Windows


The new Mikrotik devices supported by AREDN are great, but the installation procedure for loading AREDN firmware on them using a Linux computer has been intimidating to many in our community.

There is no reason to fear any longer.

Ray KK6RAY (formerly KM6WUH) devised a procedure to install AREDN firmware on Mikrotik using a Windows computer. The widespread familiarity with Windows and fewer steps in Ray's procedure should greatly reduce any anxiety you may have about trying a Mikrotik unit.

Ray produced a 20-minute video to demonstrate the installation procedure. The video is on YouTube here.
In addition to a Windows computer, an AREDN-supported Mikrotik device (see Supported Platform Matrix), and an Ethernet cable, you will need:

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hAP ac lite 5GHz LAN Access Point


Joe AE6XE reports that the  Nightly Build available on Nov 28, 2018 will now include capability to use both wireless cards in the hAP ac lite device.  The 2GHz is the Mesh RF and now the 5GHz is a standard part 15 Access Point bridged with the LAN network.   This means that LAN mesh devices can be both on wifi and physically on the Ethernet port, both allocated the IP addresses assigned for the LAN network.   

For now, the 5GHz channels overlapping Doppler Radar are not selectable -- the "DFS" channels.   This will be an add on later to integrate in these channels. 

The code changes that make this possible, also make the following capability readily doable and are in the pipeline for the nightly build:

1) Activating the Nanostation XM devices' secondary Ethernet port to be standard AREDN functionality (and daisy chain devices with poe passthough).
2) Ability to enable/disable the following for single wireless card devices -- only one active on the wireless at a time or both disabled:
     a) mesh RF as we know today
     b) LAN Access Point for...
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Improved Capability on XW Device Ports

 

Full functionality of both ports on Nanostation M2 and M5 XW units is now available.

Joe AE6XE found a way to remove the limitations noted in the forum thread.   Both Ethernet ports on the Nanostation M2/M5 devices are now configured and working without limitations.  This code will be available after tonight's build on Nov 22, 2018.  Text included in the AREDN GitHub README:

The following devices have enhanced Ethernet port usage.

  • NanoStation M5 XW
  • NanoStation M2 XW

A single CAT5 cable to the device could be plugged into ether the 'main' or 'secondary' port with standard port functionality. Both ports can be used interchangeably and simultaneously with LAN devices on both ports at the same time. POE PassThough can be turned on in Advanced Settings to power IP cameras or other mesh nodes. It is passive' POE, which means whatever voltage you supply the M5 XW with, that voltage is passed though to the secondary port and device.  It could be between...

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California Hams Provide Fire Videos


Local amateur radio operators are responding to the recent and ongoing fires in California in many ways. Several of these hams have built a high-speed multimedia AREDN mesh network which was used to deliver live streaming video of the fires in progress.

In Ventura County, Orv Breach W6BI, Paul Straus WD6EBY and Ben Kuo AI6YR installed high-definition cameras in their portion of the growing Southern California AREDN network. They were able to figure out how to send to live video stream across the mesh network to then Internet and finally to YouTube for public access.

Ben AI6YR reports that their mesh network stayed operational even when the Spectrum cable, Internet access and phone system went down across the region. People were able to use the mesh network to keep updated on emergency information.

The start of the “Woolsey Fire” from Simi Valley, courtesy of Orv W6BI and the Pleasant Valley Amateur Radio Club
https://www.youtube.com/watch?v=cowdbebnX5o

The fire in Santa Paula, California (Briggs...

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