Hello,
I have 2 project with CC2640R2F and I'm preparing the devices for country certification. I have notice that the TX_output power are higher than SW settings.
For example I'm using HCI_EXT_SetTxPowerCmd(HCI_EXT_TX_POWER_0_DBM); and I have +1.1 dBm. I don't have any active filtering on RF site and the measurements are done with cuted antenna and with RG316 SMA ended.
I've checked results with all available power settings in PTM ( host_tests ) and our production application ( advertising channels ) and I have this:
Also I have 4 samples and it looks similar on each.
HCI_EXT_TX_POWER_MINUS_21_DBM - results -13.,6 dBm
HCI_EXT_TX_POWER_MINUS_15_DBM - results -10,5 dBm
HCI_EXT_TX_POWER_MINUS_6_DBM - results -3,7 dBm
HCI_EXT_TX_POWER_MINUS_3_DBM - results -1,2 dBm
HCI_EXT_TX_POWER_0_DBM - results +1,1 dBm
HCI_EXT_TX_POWER_1_DBM - results +1,6 dBm
HCI_EXT_TX_POWER_2_DBM - results +2,5 dBm
HCI_EXT_TX_POWER_3_DBM - results +3,3 dBm
HCI_EXT_TX_POWER_4_DBM - results +4,2 dBm
HCI_EXT_TX_POWER_5_DBM - results +4,8 dBm
What can be the root cause this issue? This is normal behave?
