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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Test cable TV input signal strength?
I just made 3 16ft coax cable extensions that will run to 3 TVs (1
each) off of a cable that previously had only 2 TVs on it. I bought rg6 wire with crimp on connectors and 3 5-900MHz 2-way splittes for the connections. I noticed a little snow in the reception of the 2 TVs i ran off of the first 2-way splitter I installed. Could I use my analog multimeter to test the signal strength coming from the cable? If so then what should the signal stength be? The first splitter leads to 1 TV one way, and then the 4 other TVs. The second split will be to 1 TV, and 2 TVs Should I use better splitters? Do I need a signal amp? If so what do you recommend? This is the first time that I have run cable so I'm not totaly certain of what is best. |
#2
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wrote in message oups.com... Should I use better splitters? Do I need a signal amp? Get a 5 way splitter and use that. Use a Radio Shack amp if needs be - some have a built in splitter. N |
#3
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The 3 legs that I am running are far apart.
I could use 3 lenghts of 16 ft wire with 3 splitters or well over 150 ft of wire with a 5-way. |
#4
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wrote in message ups.com... The 3 legs that I am running are far apart. I could use 3 lenghts of 16 ft wire with 3 splitters or well over 150 ft of wire with a 5-way. Multiple splitters is a bad idea. The only other way is to run one cable and use taps and not splitters. N |
#5
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psistormyam:
There is NO free lunch here. If you split the signal two ways, each television will get 1/2 of the original signal strength.... actually a little less than that due to losses. If you split it 3 ways then each television will get a little less than 1/3 of the original signal strength. Radio Shack sells a 4 way amplified splitter that compensates for the split and the losses. Each of the 4 outputs produces a slightly greater signal strength than the input. electricitym .. ... |
#6
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That's the correct way to do it. With the series connection
you have now, each TV down the line will get a progressively worse signal. The star distribution configuration should give you an adequate signal for each TV despite the longer coax length. wrote: The 3 legs that I am running are far apart. I could use 3 lenghts of 16 ft wire with 3 splitters or well over 150 ft of wire with a 5-way. |
#7
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and no you cannot use a vom multimeter to measure the catv signal.
Mark |
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