What frequency is APRS on?

Excuse me, could you please clarify what you mean by "APRS"? Are you referring to a specific type of communication protocol or technology? If so, it's important to note that APRS is not a widely recognized acronym in the field of cryptocurrency or finance. However, if you're asking about the frequency used by a similar technology or protocol, such as APRS (Advanced Packet Radio Service) in the context of telecommunications, it typically operates in the 800 MHz to 2.4 GHz range. But again, this is not directly related to cryptocurrency or finance. Could you please provide more context or clarify your question?