This is probably fine but I just checked our signals on the Arris DOCSIS 3 eMTA and I see this. Generally our downstream is around 2-3 dBmV. I see that is still in a good range but I am wondering what causes it to fluctuate like that.
DCID Freq Power SNR Modulation Octets Correcteds Uncorrectables
Downstream 1 4 579.00 MHz -0.61 dBmV 37.09 dB 256QAM 20406040924 0 0
Downstream 2 5 585.00 MHz -0.85 dBmV 37.09 dB 256QAM 12428744836 3648 6
Downstream 3 7 597.00 MHz -0.21 dBmV 37.36 dB 256QAM 12373519309 6 0
Downstream 4 8 603.00 MHz -0.75 dBmV 37.36 dB 256QAM 12124202480 21 671
UCID Freq Power Channel Type Symbol Rate Modulation
Upstream 1 11 30.10 MHz 48.00 dBmV DOCSIS2.0 (ATDMA) 5120 kSym/s 64QAM
Upstream 3 10 23.70 MHz 47.25 dBmV DOCSIS2.0 (ATDMA) 5120 kSym/s 64QAM
Upstream 4 12 36.50 MHz 49.25 dBmV DOCSIS2.0 (ATDMA) 5120 kSym/s 64QAM
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