Just to clarify there are two types of WINEGARD TV WALL PLATES... One is amplified to be used for OTA antennas that "DO NOT" have an amplifier in the roof mounted antenna and the other model Wall Plate is for OTA antennas that "DO" have a built-in amplifier. From the front these two TV WALL PLATES look the same.
This is a RA-7296 Model with an built-in AMPLIFIER "booster"
This is the RV-7042 Model without an AMPLIFIER "Booster"
photos from google images
Kinda hard to tell the difference... Both WALL PLATE models use an internal SPLITTER for the OTA and CABLE antenna connections. I do know the RV-7042 model TV WALL PLATE without the amplifier "booster" sends up +12VDC to the OTA antenna to operate the BATWING/JACK Antenna built-in amplifier when you push the small push button switch "ON". I am not sure what the RA-7296 Model TV Wall Plate panel does when you push it's small pushbutton switch "ON" other than turns on the amplifier "booster". This RA-7296 Model may "NOT" send +12VDC to the OTA roof mounted OTA antenna.
In either case the operations is the same according with the provided operations sheet. To use the OTA roof mounted BATWING type antenna or King JACK type antenna push the small button on the front panel to turn "ON" the LED light. To just use the CABLE INPUT then push the small button to turn "OFF" the panel LED. I don't know if the RA-7296 model TV wall Plate with built-in amplifier/booster sends +12VDC to the OTA antenna or not...
My POPUP trailer has the RV-7042 model TV wall plate "WITHOUT" amplifier installed. My Fifth Wheel trailer has the RA-7296 Model TV wall plate "WITH" the amplifier installed. My OTA BATWING mounted on the Fifth Wheel must "NOT" have a built-in amplifier in it up on the roof??? I notice it does not have the UHF add-on dipoles... Just a straight BATWING design.