Question: RVs have two or 3 different antenna systems.
First: A wall plate.. This plate has a 12 volt outlet, SWITCH, LIGHT and antenna connector, Normally it is near the main (Front) TV or near the antenna.
Second: A Sensar Pro, this has two digital displays, 3 buttons, and a column of LED lights with labels.
Finally, a Box of Many Buttons (Matrix Switch) BOMB for short.
The top one, Light must be on
The middle one, tap any button, and ONE of the led's should come on, if the digital displays light up as well good, if not touch the TOP button one time. and the digital displays should come on.
On the box of many buttons, the ANT button must be pressed Try pressing it again,, If that does not work turn OFF the power switch (oh, that has to be on as well) and then push buttons like 50 to 100 times at random alternating with the ANT button, then push ANT and turn power back on.
Beyond that we get to serious touble shooting.