this post was submitted on 12 Nov 2025
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You know the devices that take audio and convert it to a radio signal for your car?
We need the same thing but for old analog tv signals.
Plenty of those exist. They were given out like mad when the analog to digital switch was happening. Little boxes that would convert digital TV signals to analog for viewing on old TV's.
Do you happen to remember any of the brands/types?
They were referred to as DTA's - https://en.wikipedia.org/wiki/Digital_television_adapter
You'll still require a means of amplifying and broadcasting the converted signal if you need true OTA but this gets you an analog RF signal (NTSC in the US) from a DTV broadcast.
I wouldn't be surprised if you could take the output of the DTA and feed it to signal booster/amplifier with an antenna on the output and get short range OTA broadcast. Just know your laws on allowed output power.