Test Descriptions BLE - Constant Transmit The BLE Constant Transmit (tx) test transmits a continuous stream of packets using the specified PHY and with specified data pattern at the maximum power allowed for that combination. This is a standard test defined by the Bluetooth Core specification. The packet length is maximum by default, but may be adjusted. Note: BLE channels in btlru are numbered from 0-39, and sequentially map to 2MHz channels starting at 2402MHz. This differs from the official BLE physical channel index to RF Channel/frequency mapping. The PHY types are specified with the -t parameter as follows: Parameter Description 1 1M PHY 2 2M PHY LR2 Long Range/Coded PHY, S=2 LR8 Long Range/Coded PHY, S=8 Continuous Transmit test on channel 0 (2402MHz) with a PRBS9 data pattern using the 1M PHY btlru :>tx -c 0 -p p9 -t 1 Continuous Transmit test on channel 39 (2480MHz) with a PRBS9 data pattern using the 2M PHY btlru :>tx -c 39 -p p9 -t 2