Ah - complex sentence and no punctuation regarding the aerial, drilling, and the light.

I didn't say record, I said capture, if the remark about not recording a signal was aimed at the garage door opener remark. Detecting and being able to repeat the signal electronically is what I was referring to, or having a device that runs through a bunch of frequencies or patterns and when one works, they're in.

For a long time keypads have been in use instead of fobs or openers of various sorts. If I have to replace the opener in my garage at some point I'll probably go with a system that opens with both.