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What Overlapping Channel Problem? In the UK, the area of the wireless spectrum set aside for the use of 802.11b/g wireless networking devices is the ISM (Industrial, Scientific and Medical) band between 2.400 GHz and 2.497 GHz. In the UK this is subdivided into 13 channels of 25 MHz. In the US, only the first 11 of these channels are available – a fact with implications for UK deployments (see ‘WAG’s Advice’ below).
There are cases when you are logged out automatically from the Janet Community website - your session expires if you have used an Institutional Login.  This is for security reasons, since you will have a session open both between our Service Provider and your institution's Identity Provider, and also a local session on our website; we need to ensure that when you are logged out of one you will be logged out of the other. There are a number of timeouts set.  You will be logged out automatically when:
  Description of tests of USB-connected echo-cancelling loudspeaker/microphone systems for video-conferencing applications Document Authors Ronnie Gibb and Stephen Lawrence at Glasgow University 28th April 2011
  System Yamaha Model PJP-25UR Guide Cost £270 Test Date 24/03/2010 WebSite
  System Yamaha Model PJP-10UR Guide Cost £170
  System US Robotics Model Model 9610A Guide Cost £8
  System Spreed Model USB Internet Speakerphone Guide Cost £31 Test Date 21/12/2010
  System PolyCom Model C100S Guide Cost £90 Test Date 17/12/2009 WebSite
Testing carried out April 2011 System Phoenix Model Solo USB Guide Cost £100 Test Date 17/03/2010
Testing carried out April 2011 System Phoenix Model Quattro VC;  MT301 Guide Cost £435 Test Date 10/03/2010