The Jack may start working better for channels above channel 40. These channels are found around 650 Megahertz to 890 Megahertz (channel 69). Most stations found higher up (RF transmission channel) are the religious stations, home shopping, etc. They are generally shorter viewer area. The least desirable area for regular stations. It's better there than the "low power" analog band if they are located in an area with many digital stations. Most of us do not even bother to scan for any remaining analog stations.
The new antennas that stick to a window will likely work better on these stations.
