Power

Ensure that the TX power of your access points falls within the maximum and minimum power recommended by Vocera.

If an access point is set to its default power level (usually 100 mW), there will be a power asymmetry problem. If an access point is set to lower power level, the deployment is considered dense with many APs. The badge can receive data from the AP, but the AP cannot receive signals from the badge. This power asymmetry results in choppy audio and one-way audio.

For information on suggested limits on automatic power adjustments, refer to Automatic Wireless Configuration.

The following table displays the radio transmit power and receiver sensitivity for B3000n in 2.4 GHz spectrum.

Mode Data Rate Typical Transmit Power Receiver Sensitivity
802.11b 11 Mbps +17 dBm -87 dBm
1 Mbps +17 dBm -90 dBm
802.11g 54 Mbps +16 dBm -73 dBm
6 Mbps +17 dBm -91 dBm
802.11n (HT20) MCS7 +16 dBm -70 dBm
MCS50 +17 dBm -90 dBm

The following table displays the Radio transmit power and receiver sensitivity for B3000n in 5 GHz spectrum.

Mode Data Rate Typical Transmit Power Receiver Sensitivity
802.11a 54 Mbps +14 dBm -73 dBm
6 Mbps +16 dBm -92 dBm
802.11n (HT20) MCS7 +14 dBm -70 dBm
MCS0 +16 dBm -91 dBm
802.11N (HT40, 5GHz only) MCS7 +14 dBm -68 dBm

The following table displays the radio transmit power and receiver sensitivity for B3000.

Mode Data Rate Typical Transmit Power Receiver Sensitivity
802.11g 54 Mbps +15.8 dBm -65 dBm

For more information on radio receiver sensitivity, refer to Radio Receiver Sensitivity.