> For the complete documentation index, see [llms.txt](https://docs.holybro.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.holybro.com/radio/xbp9x-radio/specification.md).

# Specification

### Product Specification 

| FREQUENCY RANGE                                                 | ISM 902 to 928 MHz                                                                                                                                                                                                                                                                                                                                            |
| --------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| TRANSMIT POWER (Software Selectable)                            | Up to 30 dBm\*                                                                                                                                                                                                                                                                                                                                                |
| CHANNELS                                                        | 10 hopping sequences share 50 frequencies                                                                                                                                                                                                                                                                                                                     |
| RF DATA RATE                                                    | <p>Low data rate: 10 kb/s;</p><p>Middle data rate: 110 kb/s; High data rate: 250 kb/s</p>                                                                                                                                                                                                                                                                     |
| MAXIMUM DATA THROUGHPUT                                         | High data rate: 120 kb/s                                                                                                                                                                                                                                                                                                                                      |
| AVAILABLE CHANNEL FREQUENCIES                                   | <p>Low and middle data rate: 101;</p><p>High data rate: 50</p>                                                                                                                                                                                                                                                                                                |
| RECEIVER SENSITIVITY                                            | <p>Low data rate: -113 dBm; Middle data rate: -106 dBm;</p><p>High data rate: -103 dBm</p>                                                                                                                                                                                                                                                                    |
| RECEIVER IF SELECTIVITY                                         | <p>Low data rate, +/- 250 kHz: 40 dB;</p><p>Low data rate, +/- 500 kHz: 50 dB </p><p>Middle data rate, +/- 250 kHz: 30 dB; </p><p>Middle data rate, +/- 500 kHz: 40 dB </p><p>High data rate, +/- 500 kHz: 30 dB;</p><p>High  data  rate,  +/-  1000  kHz:  45  dB  </p><p></p><p>RECEIVER  RF SELECTIVITY</p><p>Below 900 MHz and above 930 MHz; > 50 dB</p> |
| MODULATION                                                      | <p>Gaussian Frequency Shift Keying Gaussian Frequency Shift</p><p>Keying</p>                                                                                                                                                                                                                                                                                  |
| SPREADING TECHNOLOGY                                            | Frequency Hopping Spread Spectrum (FHSS)                                                                                                                                                                                                                                                                                                                      |
| <p>SUPPORTED NETWORK TOPOLOGIES</p><p>(Software Selectable)</p> | <p>Peer-to-peer (master/slave relationship not required), point-</p><p>to-point/point-to-multipoint, mesh</p>                                                                                                                                                                                                                                                 |
| ENCRYPTION                                                      | <p>Optional 256-bit AES CBC encryption. Encryption is enabled</p><p>with the ATKY command.</p>                                                                                                                                                                                                                                                                |


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