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Standard User rockyray85
(newbie) Sat 31-Dec-11 10:39:55
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Re: PSD Masks and what they're for


[re: MHC] [link to this post]
 
One of the most detailed explanations if I ever saw one...

So, to sum up, in general PSD masks are used to reduce interference/crosstalk. For each frequency there is a PSD mask applied (according to the DSL tech used) and is implemented in the "last mile".

Am I correct?
Standard User MHC
(legend) Sat 31-Dec-11 12:26:37
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Re: PSD Masks and what they're for


[re: rockyray85] [link to this post]
 
In reply to a post by rockyray85:
One of the most detailed explanations if I ever saw one...

So, to sum up, in general PSD masks are used to reduce interference/crosstalk. For each frequency there is a PSD mask applied (according to the DSL tech used) and is implemented in the "last mile".

Am I correct?



The mask covers all frequencies in the service, but has specific parameters at each point and those are applied.

Imagine having a piece of card with a hole cut in it - the mask. This is placed over the frequency/power plot and checked to ensure everything lies with the area defined by the hole - anything outside then needs to be rectified.





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