Thread: 100M Signal Levels
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Old 10-09-2011, 18:25   #43
Ignitionnet
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Re: Signal Levels

Quote:
Originally Posted by Sephiroth View Post
Not the downstream, Igni. The downstream power levels will rise in winter.
Connectors in common with other metals shrink, less tight contact, offsets the loss of resistance from the cooling.

Will be some cases where this doesn't happen due to in-line amplifiers which respond to changes in temperature but the general trend should be increase in attenuation or a marginal drop at best - between zero and 30C you're talking 0.1dBmV per 30m.

Cable Type Temperature Fahrenheit
P3 500 CA 20 30 40 50 60 70 80 90
Frequency (MHz)
600 1.80 1.82 1.85 1.87 1.89 1.91 1.94 1.96
750 2.04 2.06 2.09 2.11 2.14 2.16 2.19 2.22
1000 2.37 2.41 2.44 2.47 2.50 2.52 2.56 2.59
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