Does anyone know how the tags work?
Alpha Tags are created by the software being used, and pass thru the metadata info of a streaming file.
For example, SDRTrunk has predefined alpha tags and only shows the TO and FROM (radio id) info.
In Proscan a variety of information that the owner defines can be passed via the alpha tags. Info that it passes can contain the following:
This is why you will see varying info in different sites.
Other streaming software also has their own alpha tag setups.