A group has beem formed by Air-Stream members to work with interested code developers and every day people to look into practical ways to use OpenWRT able wireless devices and OLSR to build a very low cost grass roots community wireless networks.
There is no need to be a Air-Stream Member as anyone can participate, to join trials of the mesh network, all you need is a OpenWRT able wireless device , volenteer and participate.
Often referred to as Client Premesis Equipment (CPE) there are a number of vendors who provide integrated solutions for connecting to existing wide area wireless networks such as the Air-Stream wireless network. This equipment integrates the job of host, wireless radio, antenna and accessories into one product. The main advantage of this is the cost saving and simplicity associated with buying a single product. The main disadvantage is the lack of options in customisation, software and upgradeability.
Mounting and powering electronics in harsh environments such as outdoors or in roof cavities requires special consideration.
Antennas are the most visible part of wireless communication and play the most important role in guiding the radio frequency signals through the air. Antennas are where the 'wireless' part of wireless networking come in to play.
To connect an antenna to a wireless radio invariably requires one or more lengths of of coaxial cable terminated in the right connectors (plugs.)
A module or device which provides IEEE 802.11 a/b/g/n MAC layer to a host and a physical layer to an antenna.
Off the back of the meeting last night where we were talking about the power output of cards and
antenna gains. I'd thought I'd post how I remember the whacky world of dB gains.
Rule of Thumb: For power gain, every decade of dB adds a zero to the "10".
Adding an image to your posts is easy.
First create a page and write your story, then scroll down to the File Attachment Link
Attach your image file.
Once the image file is attached, you can the place the image in your story with some html like I have done for this page.
Since putting the Gawler South AP in operation, which at the moment is a Bullet2 with an 8 dB omni, my TV reception was plagued with noise. It was more noticeable on the digital channels (analog can pretty much put up with anything) and only 7 and 9 were watchable. ABC, 10 and One were unwatchable (not sure about SBS, I don't have a UHF antenna).
Two solutions came to mind to fix this issue:
1) Move the AP, as it's mounted under my TV antenna, however this would require a new mast
2) Wrap the Bullet in alfoil
