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Topic:
weird bug
This thread has 9 replies. Displaying all posts.
Post 1 made on Friday January 17, 2003 at 14:31
twix
Long Time Member
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I have a install that has been running fine for 2 years. I have 3 video sources: 1 cable ( coax) and 2 satellites (modulated) running through a 3-way splitter (combiner)then 1 out to a CP da-500 amp then to the whole house splitter.
Up till a couple of days ago the image was perfect but now it is all fuzzy excluding the Sat channels. I tried going direct with the cable to the amp and the (by passing combiner) and the image is beautiful again. I swapped out the combiner but the same problem persists.

Anyone have ideas?
Post 2 made on Friday January 17, 2003 at 17:35
Larry Fine
Loyal Member
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Sounds like the cable signal has weakened, just enough to show only through the combiner. Find out from your cable provider.

Larry
www.fineelectricco.com
Post 3 made on Friday January 17, 2003 at 19:54
Boatsound
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6
Two questions for you. What channels are the satellites modulated on and do you know if the cable company has added any channels or added digital services.
Post 4 made on Saturday January 18, 2003 at 17:59
Ernie Bornn-Gilman
Yes, That Ernie!
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Hey Boater, why do you ask about other channel?

Larry's question is on point: what do you mean by "fuzzier?" If you mean there is a bit of snow, then the signal is now too weak. If everything is smeared, then that is stranger than strange. Let us know.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 5 made on Saturday January 18, 2003 at 20:12
Tony Golden
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The reason for asking about the other channels, is that the problem could be a result of the cable company adding new channels that are conflicting with the modulated ones. This is fairly common, and can happen even if the "new" cable channels don't actually have a picture on them, or aren't the same as the modulated channels. It can also affect channels other than those two.

You can test for it by disconnecting either the modulator or the incoming cable feed. If the remaining channels are clear, that's the problem.

The solution is to either move the modulated channels to higher numbers, or add a low-pass filter that will block the higher cable channels from the incoming signal.

Larry's suggestion of (suddenly) low signal-strength is also a possibility...
Post 6 made on Saturday January 18, 2003 at 20:38
Dave Blaker
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613
just had the same problem with a client. seems the cable company had changed the lineup, added some new channels, and some marker channels for upcoming channels. we moved the modulated channels to different channels, and used a lowpass filter to remove the channel markers. worked like a champ.
Post 7 made on Monday January 20, 2003 at 12:37
ericstac
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October 2002
312
I think Larry is right.. let us know how it works out..

I do have a question for you though,, I'm a little confused about what is going on..
You have three sources and you modulated the sat signals then combined the signals and then split them to go throughout the house.

So if the sats are modulated the customer has to put the tv to the specified channel lets say channel 87. Once it is on Channel 87 how is the sat channel changed?
Post 8 made on Monday January 20, 2003 at 19:43
Matt
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I've had that happen, but what happened was, the cable company sent out an 'expert' and changed the combining splitter (funny how that works huh) 'the right way'. Well, who can blame the poor sucker, cable line workers aren't always the brightest bulbs.

Post 9 made on Tuesday January 21, 2003 at 09:02
Fred Harding
Super Member
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October 2001
3,456
In response to Eric;
By using a remote control repeating system. If the wiring is limited to simply one leg of coax out to the remote television, you can inject IR down the coax. If you have the luxury of spare telephone wire conductors, you can use that. Different options then include dedicating IR from specific rooms to specific receivers, not programming the kids room tv to show the satellite receiver weird old uncle edith is watching (holy spice channel, batman...), and more.
On the West Coast of Wisconsin
Post 10 made on Tuesday January 21, 2003 at 18:27
Boatsound
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Thanks Tony. It is nice to know that someone quickly responded to the reasons for asking my questions. I have been away and unable to answer that myself again thanks. Now all we need to know is if twix has remedied the problem. Well twix.


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