The signal enhancing directors are more effective for UHF signals, but they have no effect on the current VHF signal.
They enhance the UHF signal without affecting the VHF signal.
1. You can receive more channels and make the channels more stable.
2. The signal enhancing directors help more with UHF signals but will it make the VHF signal just no difference.
3. It doesn't affect the current VHF signal and enhances the UHF signal.