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What is the "ideal" internet signal reception?

Azurik

Azurik

Platinum Member
A Comcast guy came to my house today and told me that ideal internet reception happens between -9 dB and +10 dB on their signal analyzer.

The reason why he was there and why he told me this was because Comcast updated their service (they never told me what they did). Apparently, everyone got kicked off around my area. Once it went back up, mine still stayed dead.

Upon coming here, he found out the room I have the internet hooked up was a -30 dB. Yes, I have a lot of splitters - so we took care of 3 or 4 that I didn't need at the time. This turned my signal to around -19 dB and my internet worked again. He said this should help a little and if worse comes to worse, use the other computer room as it had a -15 dB. He commented on how he was shocked to see it worked like this for 3-4 years at 30 dB.

What I am trying to figure out is, it worked wonderfully in the past, what could they have possibly done that made it stop working without increasing the signal.

Azurik
 
Well, purely speculation. Your setup just happened to work with the Mux equipment that your cable co had installed at the head end for your cable loop. You said they did an ?upgrade?, this probably means that they bought something that enables them to cram more customers onto a card/chassis combo or send higher data rates your way. What that means to you is that the whole new system just needed a little tighter of a spec to work like it should.


-30 is pushing it and +10db seems 'hot' for a signal. Ideally you?d probably want around -10
 
Here's my signal strength's for my cable modem. I think I'm going to have a tech out to check the line and replace this splitter which they installed. It doesn't work for my internet when it is hooked up anymore.

Down: Signal to Noise Ratio 37 dB
Power Level 1 dBmV
Up: Power Level 54 dBmV
 
You can always have them put in a signal amplifier/booster type thing as well if all your splitters are causing the signal to be too low. I'm getting one at my house next week and I only go through 2 splitters to get to my cable TV but the more splits in the splitter the more the signal goes down so...

But I have my cable modem hooked up right after the very first splitter so that works fine, it's just my digital cable that isn't quite up to par.
 
Where are you located at? I know in my area the upgrade was only a change in the modem config, as far as cramming more customers on a card, well lets just say that cable has a hella fat pipeline and the 4mb that Comcast offers is the tip of the iceberg, with that i mean that the potential bandwidth for cable internet gets larget everytime a channel goes digital.
 
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