Quote:
Originally Posted by HamsterHam
With a 10 dB attenuator my downstream levels are -5 to -7 and without it they are +7.3.
|
-7 dBmV is out of range. It can cause reliability problems.
+7 dBmV is in range. That would work fine.
I have my downstream levels around +7 to +9 dBmV during summer.
The acceptable range for downstream is generally -6 to +10 dBmV. Anywhere inside that is fine (doesn't need to be zero and won't benefit any more from being zero than being +7 dBmV), but if you allow for drifting levels then you don't want it right on the edge of the range.
You should expect your levels to change by about 3 dBmV between winter and summer.
---------- Post added at 17:50 ---------- Previous post was at 17:42 ----------
Quote:
Originally Posted by HamsterHam
Now I am getting 4mbps! Loads of T3 Timeouts! So angry.
Upstream levels are 51.46. Is that high?
|
Yes. You want it in the 40's, though high 30's is also fine. Higher downstream helps reduce the upstream. Though the modem keeps increasing the power until it gets a signal through, so depends on whether the issue is just the low downstream level or something else.
Quote:
Originally Posted by HamsterHam
Engineer booked for Monday.
|
The "engineer" will probably just take the attenuator off.