Hi I know nothing about radio, but I wanted to share the way my father checks his radio from his iPhone when he is away. He is very proud of it.
The goal is to receive a notification whenever the radio receives a signal, and listen to it.
Here's what he did:
applied a cabled sensor directly over the TX/RX LEDs, shielding it with black spongy material
when the sensor detects light, it activates a switch that turns on a fan
the fan moves a piece of cloth
the movement of the cloth is detected by a wifi camera that is always filming the radio. The camera is connected to the phone via app, and equipped with a microphone
the software identifies it as movement, starts recording and sends a notification to the phone
my father opens the app and listens to the radio remotely.
Simple, right?
...right?