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Old 25-11-2012, 20:13   #16
ferretuk
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Re: Inaccurate downstream power levels reported by SuperHub?

Quote:
Originally Posted by qasdfdsaq View Post
The context of the thread is explicitly about incorrect units. And yet you think it's helpful to leave them out completely?
??? The only post I can see where units have been missed off that introduces any confusion is:

Quote:
Originally Posted by qasdfdsaq View Post
Ermm 6dB is 4:1.
That wasn't posted by me...

---------- Post added at 20:13 ---------- Previous post was at 20:11 ----------

Quote:
Originally Posted by Sephiroth View Post
Qasi's right.

I uploaded a document here that explains it all. (Ignore in the post where I say 11 dBmbv - it should have read 22 dBmv).
If Qasi had quoted 'power' he would have indeed been correct but he was arguing about a post that referred to voltage.

The modem reports in dBmV - An increase of 6dB in this figure would mean that the signal amplitude had doubled and the received power would have gone up by 4.
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