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All FAQs » Cable Modems and Wiring Issues » 10. Tables References

FAQ RevisionsEditors: Raydr See Profile, Axilla See Profile
Last modified on 2009-01-21 22:34:38

10. Tables/References

·What are the frequencies for channels in the US?
·What are the limit sets for a cable modem?

What are the frequencies for channels in the US? (#3320)
There is a complete list of CATV and Air channel frequencies at:
http://www.mastervideo.com/ntsc_chart.htm

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by Raydr See Profile edited by ergibbs See Profile
last modified: 2003-07-31 08:35:44

What are the limit sets for a cable modem? (#14556)
Min Video level 0.0
Max Video Level 15.0
Min Delta V/A (dB) 10.0
Max Delta V/A (db) 17.0
Min Digital Level -10.0
Max Digital Level 10.0
Signal Quality 64 QAM 28.0
Signal Quality 256 QAM 32.0
Max Pre BER 1.0E-7
Max Post BER 1.0E-9
Min CM Headroom (dB) 5.0
Max Ingress -30.0

*These are suggested levels for the downstream plan for a cable modem.

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by KC8TKR See Profile edited by Axilla See Profile
last modified: 2007-01-03 00:01:48


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