Join Date: Dec 2002
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|Originally posted by novo2
1) My first question is about db ratings when working with cable distribution. All splitters have a db rating but is this a measurement of the amount that is being lost or how much is allowed to pass? What db rating would be considered acceptable or should be my goal?
2) Also splitters have a measurement of MHz or GHz. Is this saying how much information the splitter will allow to pass? What is considered a quality splitter? Does 1 GHz mean the total amount for the whole splitter or each port?
3) If you have an 8 way splitter and only 3 wires are hooked up to it does it have the same strength if you had all 8 ports connected?
4) What do you guys prefer channel amps with multiple ports, or single inline amps that then go into a splitter.
5) What does it mean when a splitter has DC passing?
|2) The Mhz or Ghz question deals with the highest frequency the splitter will pass. Cable systems typically go all the way to 1000Mhz (1Ghz) but channel 69 is the highest broadcast frequency, or 806Mhz.|
|I've also read that the optimal dB strength for incoming signal is lower for digital than analoque. What's the desired values?|
|Originally posted by brvheart
Channels should not be tagged to frequencies because any channel can be allocated to any frequency. Therefore, channel 69 may not at 806Mhz everywhere. I don't know if that was being used as an example or not; but the highest analog channel and frequency will vary by location.