A little more information -- a photo -- would be helpful. What antenna do you have now? Is your current antenna in a fixed position or are you able to point it toward the transmitter? Are you turning on the antenna amplifier?
Digital TV signals are line of sight, so your location and proximity to TV stations are going have more effect than anything else.
For OTA reception the Wineguard Sensar IV (https://winegard.com/industry/recrea...v/sensar-iv-rv
) generally receives the best reviews followed closely by the King Jack (https://kingconnect.com/king-jack-di...na-with-mount/
). Neither are omni directional, meaning that you have to aim them at the transmitter for best reception.