Originally Posted by EricHawthorne
I'm new to OTA, but have installed a ClearStream 4 off the roof of our house located on a hill at about 500ft in eastern Woodinville. We receive all local channels just fine, except KING-TV 5.1. From TVFool it appears that all of these channels are comming from practically the same location in Seattle, any idea why we cannot receive 5.1?
We can receive 16.1 and 16.2 without issue and it looks like those two come from the exact same spot with less power. All channels are coming in with a strength of 60-70% except 5.1 which is 0% on both a Sony Bravia and Panasonic.
Any advice would be appreciated.
Ch5 can be tough when you're more to the east of Seattle. It's also the highest in frequency at ch48 uhf. It's very possible that there's a tree or something in the general direction that's interfering just enough to keep the tuner from locking on. Actually, you could have other channels that are also being affected. The nature of digital signals is if the tuner can lock on, the picture will be perfect. You could be barely working on some of the other channels, actual signal wise, or have perfect reception, and it would all look the same, and your "strength" indicator could say 100%. Wind moves the tree limbs around a little, zero percent. Ch5 could almost be there and you wouldn't know it.
Since all the other regular channels are coming in, and you have a 4way splitter in the line, try connecting just one of the TV's directly bypassing it to see what happens. Scan both TV's. If it comes back, and you only need to connect two TV's, try a 2way splitter. It may not seem like much, but a few db's of signal loss could be just enough to make or break.
Next, I would suggest moving the location of the antenna a little. Reception at ch48 uhf frequency can be significantly changed by moving the antenna only 6 to 8 inches, in any direction, including up or down. Connect only one of the TV's directly, no splitter. Write down your readings on the major channels before moving anything. Check them all afterwards, and see which ones made the most change. That will help you narrow down the process. On next move, just check those channels. When you get ch5, then concentrate on the other sensitive ones. Also look off in the distance and see if you can figure out what might be in the way. Once you get them all, then put the splitter back in and see what happens. If you loose it again, it might be time for a preamplifier. My fav is the Channelmaster 7777. Fry's has them.
Let us know what happens.