I have a Zoom 5341J modem, and have the Ultimate plan here in Northern VA, which is supposed to give me 150 Mbps down.
speedtest.net and cox's speed test report ~28 Mbps down and ~20 Mbps up.
Here are the levels from the modem. The modem is connected directly to the coax jack on the wall. Speed is the same whether directly connected to the computer or through the router (Linksys E3000). I am connecting through ethernet, not wireless.
Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 393000000 Hz Locked
Connectivity State OK Operational
Boot State
Configuration File OK
Security Enabled BPI+
Downstream Bonded Channels
Channel Modulation Frequency Power SNR Correctables Uncorrectables
1 QAM256 393000000 Hz -15.5 dBmV 35.1 dB 0 0
2 unknown 351000000 Hz -50.0 dBmV 0.0 dB 0 0
3 unknown 357000000 Hz -41.3 dBmV 0.0 dB 0 0
4 unknown 363000000 Hz -32.5 dBmV 0.0 dB 0 0
5 QAM256 369000000 Hz -23.0 dBmV 28.9 dB 140022 36
6 QAM256 375000000 Hz -16.2 dBmV 35.6 dB 0 0
7 QAM256 381000000 Hz -14.9 dBmV 36.2 dB 0 0
8 QAM256 387000000 Hz -14.8 dBmV 36.2 dB 0 0
Total Correctables Total Uncorrectables
140022 36
Upstream Bonded Channels
Channel US Channel Type Symbol Rate Frequency Power
1 ATDMA 5120 Ksym/sec 32500000 Hz 51.0 dBmV
2 TDMA and ATDMA 2560 Ksym/sec 17800000 Hz 52.2 dBmV
3 TDMA and ATDMA 2560 Ksym/sec 21100000 Hz 51.0 dBmV
4 ATDMA 5120 Ksym/sec 26000000 Hz 51.0 dBmV
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