| ||||||||||||||||||||||||||||||||||||||||||||||||
| ||||||||||||||||||||||||||||||||||||||||||||||||
|
SWAN SDL Frequently Asked Questions
What area is covered?
What equipment do I have to supply? What is CONTENTION RATIO? How much data can a SDL internet connection handle?
Coverage is currently restricted to certain areas of Lerwick. At this time equipment is being installed and tested so it is difficult to publish coverage details, we hope to be able to do this in early June. Coverage is very much on a "line of sight" basis so it is possible that some locations in a covered area still may not be able to receive a signal if blocked by large buildings etc. If you wish to know if a location is, or will be covered then please submit a form for further information.
All major equipment is supplied by Shetland Broadband for the duration of the service and has to be returned if the service is terminated. The equipment will typically consist of an aerial, a receiver/transmitter and power supply. You have to provide a suitable (CAT 5) network cable from our termination to your computer or network router and access to a mains power supply (approximately 15W consumption). Shetland Broadband's termination can be up to 10 metres from the aerial (longer distances may incur a charge) and must be within 1.5 metres of a mains power socket. Normally there is no connection or set up charges, but this is subject to site survey and difficult installations may require a contribution to costs.
Users of internet connections normally have to share bandwidth with other users. Basic ADSL services in the UK have a contention ratio of 50:1 with the more expensive or business packages having 20:1. This means that using a 50:1 contended service you can be sharing the allocated bandwidth with up to 49 other users at the same time. Shetland Broadband's wireless service offers contention ratios of 50:1, 10:1, 5:1 and 1:1 (exclusive use).
The amount of data which can be transferred using a wireless internet connection varies in line with the bandwidth and contention ratio of the service subscribed to. The table below gives an estimate of the monthly traffic which could be handled by various combinations.
|
||||||||||||||||||||||||||||||||||||||||||||||||
|
| ||||||||||||||||||||||||||||||||||||||||||||||||
| ||||||||||||||||||||||||||||||||||||||||||||||||