Question: My hum is gone, but now I'm no longer able to get certain channels. What's wrong? This can occur occasionally. We have been investigating this problem for a while now, and have discovered it is due to one of two reasons:

A. In most of these cases, the connectors of the device have been damaged enough from a bad coax end to cause a poor connection. The fix is to make sure your coax cables end is clean before you install the hum reducer.

B. The other reason this occurs is due to reflections of the video signal occurring at points along the feed between the cable company and your home. Video reflections can be caused by improper tuning of the cable company's repeater amplifiers, illegal wire taps into the cable system (such as in apartment buildings), or unused video outlets in your home.

Unused outlets must have a 75-Ohm terminator attached to the F-connector to prevent reflections. Go to an electronics store (i.e.: Radio Shack), purchase these terminator(s), and install them on all unused video outlets first as a possible fix. If you still have missing channels, try moving hum reducer to the other end of the coax cable run in the room it is in. We have found that changing the lengths of the cables that are before and after the hum reducer is enough to eliminate the reflections that are causing the dropped channels.

NOTE: This hum eliminator is for cable TV systems and should not be used for satellite systems as that signal has voltages / frequency's in it that this device may not pass.