
Advice for Reception ProblemsWarren Kunkle, KSN Chief Engineer
For many cable viewers who experience poor picture quality on Channel 3, the most common cause is ingress. This occurs when the signal on the cable and the off-air signal try to mix together in the TV’s tuner. Typically, this problem is the result of bad wiring in your home, or a bad cable feed to your house. Try connecting your set directly to the cable company’s drop to your home... no VCRs or splitters in between... a straight hook-up. If the problem is cleared up and the pictures look fine now, there must be some bad cabling in your home. Have a repairman check the cables for loose ends, etc. If the problem still persists, then their could be a bad cable on the cable company's side or the tuner in your set could have a problem. The next step is to call the cable company, explain your problem and what you’ve done to check it, and ask if they could send a technician to your home to check your line for ingress.
Channel 3 operates at 61.25 MHz. To be received on an antenna, the antenna should be mounted outside approximately 4-5 feet above your home's roof line. A coax cable should be used as a downlead to your TV set. The antenna should then be pointed toward Colwich, Kansas. Most antenna are broadband antenna, in order for them to receive VHF channels 2-13. The element of the antenna vary in length from short to long. The shorter elements are for channels 7-13, and the longer elements are for channels 2-6. The longest element is used for channel 3. After storms and high winds, the antenna can often suffer damage or have been moved. The longer elements are the ones that are generally damaged. Many viewers choose to place their antenna in their attics. Because most attics are small and cramped spaces, these tight spaces often do not allow the antenna to be aimed correctly. Some people will even break off the longer elements in order for them to swing the antenna around in attic to find the best aiming point. By removing these longest elements, they have removed the receiving elements for Channel 3. Most Popular |
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