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Old 05-10-2009, 10:19 PM   #21
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I really don't have any special problems with anything I see, except for drilling through the top chord of the I-joist. Breathe... everything will be fine.

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Old 05-10-2009, 10:26 PM   #22
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I really don't have any special problems with anything I see, except for drilling through the top chord of the I-joist. Breathe... everything will be fine.
Well....If that is NOT RG6 Quad, the probability of Mag and RF interference is VERY likely.

Bilateral Scrolling lines on the screen.

A sharp 90 bend creates a signal trap and the possibility of core breakage.
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Old 05-10-2009, 10:44 PM   #23
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Well....If that is NOT RG6 Quad, the probability of Mag and RF interference is VERY likely.

Says who? Are you able to prove your allegation with a documented instance from reputable sources or is this just your opinion? This is how this kind of misinformation gets spread...

I agree with mdshunk, I see nothing wrong here other than drilling the chord and even that is no big deal.

-Hal
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Old 05-10-2009, 10:52 PM   #24
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Well....If that is NOT RG6 Quad, the probability of Mag and RF interference is VERY likely.

Says who? Are you able to prove your allegation with a documented instance from reputable sources or is this just your opinion? This is how this kind of misinformation gets spread...

I agree with mdshunk, I see nothing wrong here other than drilling the chord and even that is no big deal.

-Hal

So....What do you suppose the Benefit of 6 Quad is????

Show me Empirical Data that disproves my experience.

Well....You can not disprove my experience. But you may find "Code" that says that it is OK.



Some wiseman here says.........Just because it is code, doesn't make it safe....................
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Old 05-10-2009, 11:14 PM   #25
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I don't see any really sharp bends, RG6 can be cranked around pretty good until you expierience problems...not like CAT-5.

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Well....If that is NOT RG6 Quad, the probability of Mag and RF interference is VERY likely.

Bilateral Scrolling lines on the screen.
I've seen some horrible installs, deformed wires, twists, knots, staples throught the wire etc. Hum bars have almost always been a grounding issue.

I think the turkey who decided to drill the holes in my brick to surface run a wire upstairs on the outside of my house is more of a cirminal then the installer in thoes pics. (I wasn't home at the time.....she was)
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Old 05-10-2009, 11:22 PM   #26
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This is fairly sharp. Especially when orbiting a run of wire!!!

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Old 05-10-2009, 11:30 PM   #27
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So....What do you suppose the Benefit of 6 Quad is????

No offense but if you knew anything about CATV you would know that QS is used to reduce instances of signal leakage and especially ingress. Nothing to do with anything remotely close to 60 HZ. Few systems find it necessary to use QS anyway.

With analog the only way you are going to get hum mod which results in those hum bars or as you say "bilateral scrolling lines" is when there is a ground loop that puts AC current directly on the cable shield. Most common offenders are old TVs that have developed voltage on the "F" input connector and service neutral current being carried on the cable drop shield from house ground to pole ground due to situations like a defective service neutral.

In either of these cases the shield becomes an actual current carrying conductor with a measurable current. No matter how hard you try you will never induce a voltage on the shield to be of any consequence.

And of course with digital, which all systems are moving to be completely, you will never see hum bars. Hum mod can mess with digital but it will not be seen in the picture like analog.

Show me Empirical Data that disproves my experience.

What experience are you talking about? If you think you have seen induced hum in coax cause a problem I would like to hear about it.

As for that 90 deg bend, it's not excessive.

-Hal
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Old 05-10-2009, 11:41 PM   #28
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I still don't see how thats a sharp turn for RG6...maby its the angle of the picture but its not like its pretzled...How do you avoid a bend like that when you run your cables? Put every bend inside a ridgid radius?

I would have fastned it to the side of the joist to keep is separated from anything but the angle would have been pretty similar.

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And of course with digital, which all systems are moving to be completely, you will never see hum bars. Hum mod can mess with digital but it will not be seen in the picture like analog.
I agree with all your above statements although I still run into humbars on the occasional set, I have a feeling its the decoder in the crappy scientific atlanta boxes we have in my area. Some new displays are still effected by ground voltage, even though I hate to use em I keep a handful of ground breakers in the truck for calls in Quebec.
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Old 05-11-2009, 12:16 AM   #29
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I still don't see how thats a sharp turn for RG6...maby its the angle of the picture but its not like its pretzled...How do you avoid a bend like that when you run your cables? Put every bend inside a ridgid radius?

I would have fastned it to the side of the joist to keep is separated from anything but the angle would have been pretty similar.



I agree with all your above statements although I still run into humbars on the occasional set, I have a feeling its the decoder in the crappy scientific atlanta boxes we have in my area. Some new displays are still effected by ground voltage, even though I hate to use em I keep a handful of ground breakers in the truck for calls in Quebec.

SA boxes suck!! And NO! You will never get Humbars with digital. Just Pixelization and Dropout!

When one bends at a 90 around a Mag Field, one creates a "Noise Trap".

Not saying that it is going to happen, but I do all that I can to prevent the situations that could cause an "Opportunity" to arise!


Right hand rule..........
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Old 05-11-2009, 08:26 AM   #30
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When one bends at a 90 around a Mag Field, one creates a "Noise Trap".

A what?

-Hal
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Old 05-11-2009, 10:15 AM   #31
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Not "Trap" as in "Filter" but as in Antenna.
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Old 05-11-2009, 04:23 PM   #32
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Wow!

Who knew this would go three pages worth of discussion??
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