Welcome to the forum Tiny .
How about a picture of your TX. It should have an extender on it and if you have the newer TX it will have a wheel on the top left .
Also it shouldn't have but one antenna .
The p3S remote is the exact same as the P2V and P2V+ remote but the P3 is totally different in shape and size
The remote is irrelevant when it comes to not getting an image, I would suggest using google and search P2V+ loss of FPV there are hundreds of pages on the subject.