Configures the radio‘s STBC (Space Time Block Coding) mode. STBC is a pre-transmission encoding scheme providing an improved SNR ratio (even at a single RF receiver). STBC transmits multiple data stream copies across multiple antennas. The receiver combines the copies into one to retrieve data from the signal. These transmitted data versions provide redundancy to increase the odds of receiving data streams with a good data decode (especially in noisy environments).



STBC requires the radio has at least two antennas with the capability to transmit two streams. If the antenna mode is configured to 1x1 (or falls back to 1x1 for some reason), STBC support is automatically disabled.

Supported in the following platforms:

  • Access Points — AP505i, AP510i, AP510e, AP560i, AP560h


stbc [auto|none|tx-only]


stbc [auto|none|tx-only]
stbc Configures the radio‘s STBC mode
auto Autoselects STBC settings based on the platform type and other radio interface settings. This is the default setting.
none Disables STBC support
tx-only Configures the AP radio to format and broadcast the special stream (enables STBC support for transmit only)


nx9500-6C8809(config-profile-510TestProfile-if-radio1)#stbc tx-only

rfs6000-37FABE(config-profile-510TestProfile-if-radio1)#show context
 interface radio1
  stbc tx-only

Related Commands

no (radio-interface-config-command) Disables STBC support