Question

Range expansion

  • 5 October 2016
  • 3 replies
  • 103 views

I understa Nd BOOST recommended to be hard wired if using a range expander but that means BOOST controls max range. How can I increase range? Is it possible to link in something like an AirNetix transceiver to increase range?

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3 replies

A BOOST only determines its own range. The basic principle of a wireless mesh (e.g. SonosNet) is that it's self-extending and self-reinforcing. Each unit is both a receiver and a transmitter. The overall coverage will therefore be determined by the locations of all the devices, not just by that of the wired device.

You can't use a third party device to extend SonosNet range, but you could simply add another BOOST.
Thx Ratty. One further question then - is there a limit to the chain of devices if they're all receive / transmit without degredation across the net?
is there a limit to the chain of devices if they're all receive / transmit without degredation across the net?
There are two considerations which immediately spring to mind.

1/ All the Sonos devices share the same wireless channel, so the more the data is re-transmitted the more the demand on the available bandwidth. That said, if a number of Sonos units were strung out in a line, the influence of the furthermost units would clearly diminish with their distance.

2/ Sonos uses STP (Spanning Tree Protocol) to regulate the wireless mesh -- and any wired paths which bypass it -- so as to ensure that there is a single unique path to each node, and to stop loops from forming. In essence the physical connectivity is overlaid with a set of point-to-point virtual tunnels, whose virtual ports can be set to forwarding or blocking states.

The inbuilt STP timers limit the network diameter to seven devices. This diameter is defined as the number of switches along the longest path across the network from edge to edge, and a Sonos unit is a 'switch'.