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Clarify wording about MIMO devices in Device Selection section.

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Steve AB7PA 2020-12-28 22:10:47 -07:00 committed by GitHub
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arednGettingStarted/selecting_devices.rst
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@ -7,15 +7,15 @@ The amateur radio community has recognized the benefits of using inexpensive com
When selecting a device for your AREDN |trade| hardware there are several things to consider in your decision. When selecting a device for your AREDN |trade| hardware there are several things to consider in your decision.
* Radios should be purchased for the specific frequency band on which they will operate. Currently AREDN |trade| supports devices which operate in several bands. Check the AREDN |trade| `website <https://arednmesh.org>`_ for the latest information. * Radios should be purchased for the specific frequency band on which they will operate. Currently AREDN |trade| supports devices which operate in several bands. Check the AREDN |trade| `website <https://arednmesh.org>`_ for the latest information.
* Many devices come with an integrated dual-polarity :abbr:`MIMO (Multiple Input-Multiple Output)` antenna which helps to mitigate multipath propagation issues. * Many devices have an integrated dual-polarity :abbr:`MIMO (Multiple Input-Multiple Output)` antenna which helps to leverage multipath propagation. AREDN |trade| has always supported and recommended using MIMO hardware, since these devices typically outperform single chain radios when used as mesh nodes.
* Radios can be purchased separately from the antenna, so it is possible to have more than one antenna option for a radio in order to optimize AREDN |trade| nodes for varying deployment conditions. * Radios can be purchased separately from the antenna, so it is possible to have more than one antenna option for a radio in order to optimize AREDN |trade| nodes for varying deployment conditions.
* Costs of devices range from $50 to several hundred dollars for a complete node, so there are many options even for the budget-conscious operator. * Costs of devices range from $50 to several hundred dollars for a complete node, so there are many options even for the budget-conscious operator.
* Some older or lower cost devices have a limited amount of onboard memory, but firmware images continue grow in size and functionality. Consider purchasing a device with more memory over one with less memory. * Some older or lower cost devices have a limited amount of onboard memory, but firmware images continue to grow in size and functionality. Consider purchasing a device with more memory over one with less memory.
* Check the maximum power output of the device, since some devices have lower power capabilities. * Check the maximum power output of the device, since some devices have lower power capabilities.
One of the best sources of detailed device information is a manufacturer's datasheet, usually available for download from the manufacturer's website. Currently AREDN |trade| supports over fifty device models from manufacturers including GL-iNet, Mikrotik, TP-LINK, and Ubiquiti Networks. One of the best sources of detailed hardware information is a manufacturer's datasheet, usually available for download from the manufacturer's website. Currently AREDN |trade| supports dozens of device models from manufacturers including GL-iNet, Mikrotik, TP-LINK, and Ubiquiti Networks.
If you are just getting started with AREDN |trade| you can easily begin with one of the low-cost devices that comes with an integrated antenna and a :abbr:`PoE (Power over Ethernet)` unit. If you are expanding your AREDN |trade| network with more sophisticated equipment, you may choose a standalone radio attached to any of several kinds of high-gain antennas. If you are just getting started with AREDN |trade| you can easily begin with one of the low-cost devices that comes with an integrated antenna and a :abbr:`PoE (Power over Ethernet)` unit. If you are expanding your AREDN |trade| network with more sophisticated equipment, you may choose a standalone radio attached to a high-gain antenna.
.. note:: See the **Network Design Guide** for more information about constructing robust mesh networks. .. note:: See the **Network Design Guide** for more information about constructing robust mesh networks.