I have googled around for this and don't see any sign of this question being answered. How can you be sure the immersionrc tx is functioning properly as there in no indicator led light. I'm currently in a bind as the gimbal I ordered from B&H was defective but thought Id be able to see the iosd info at the very least on the black pearl rx I just received. I will be picking up the replacement gimbal in store on Friday so I'm hoping I can get it all working for some city park shooting. Any help will be appreciated and Happy Holidays!