Roger. You must be talking about an ADS-B receiver, not approved rule-compliant transmitter. Mainly because approved equipment is a transmitter and by itself will not give you any onboard data for any device or app. And since you have an Aeronca that has never had an engine-driven electrical system installed you can’t actually install approved equipment (ADS-B or UAT “out”) in your aircraft without risking a violation. This is due to the “always on” portion of the rule mandating that if an aircraft is equipped, the approved equipment must be on and operating at all times the aircraft is operated anywhere in the air or surface of the United States (not just rule airspace). This means your battery is going to eventually die on a long flight and even though your ADS-B system switch is still turned “on” because the battery failure will instantly flag the the ADS-B system that you are not in compliance. Non engine-driven electrical system aircraft are effectively regulated out of participating in the system making you an invisible target to all the new Amazon drones and pilotless VTOL commuter air taxis. I can empathize as I am a partner in a Luscombe 8A.