# Sub-GHz The Flipper Zero is equipped with a built-in CC1101 transceiver that can receive and transmit radio frequencies between 300-928 MHz. It can read, store, and emulate signals from remote controls (like gates,remote switches, wireless doorbells, smart lighting, etc.). The Flipper Zero web page describes all the techniques in detail: Here are some hints: * If you don't know the frequency: Start with the Frequency Analyzer to determine it * If you don't know the modulation: "Read Raw" and try to figure out the correct modulation used * You need to configure the right modulation before reading a signal, else, Flipper Zero will not receive the correct data. Flipper supports: * AM270 * AM650 * FM238 * FM476 --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://www.hardbreak.wiki/radio-hacking/tools/flipper-zero/sub-ghz.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.