Is Downstream Power Level: 0.3 dBmV too Low?

[Dphiance]

As the title says im reading a Downstream Power Level: of 0.3 dBmV. The stickied thread says +/-3 dBmV so is mine too low?

Thanks
Adam

n.b. im with VM...typical.

[Traduk]

The range is normally reckoned to be OK from -2.5 up to +2.5 so at +0.3 you as near perfect as you can be.

The SNR should be in the high 30s to 40ish on downstream.

[Enuff]

Then mine must be really out of range? Downstream Receive Power Level : -5.1 dBmV

[hairy_mick]

new levels across all networks are now for digital devices is 0 to -10 -5 is the ideal level.

[r00t]

I think you'll find they are -12 to +12

[Traduk]

I should have put optimally between -2.5 and +2.5 and with a caveat that it is based on fairly old information.

There is no doubt that most modems will operate perfectly way outside of those ranges but +11's or +12's are entering a range where questions need asking. My Ambit 200 was showing levels (downstream) in the high 11's but the status page was inaccurate compared with the engineers meter. His reading was +14.5 and was rapidly corrected with an attenuator.

Correcting high power readings is a simple and fast fix but pointless unless parameters are entering a fault zone and difficulties are evident.

[Dphiance]

Thanks very much for all your replies :D