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# AWR6843AOP: AWR6843AOP Rx Gain Monitor

Part Number: AWR6843AOP

Tool/software:

Hi Ti,

I want to get Rx Gain information while senor running CPD Demo code.
I find a remark in SDK like this :
""
The measured RX gain for each enabled channel, at each enabled RF frequency \n
(i.e., lowest, center and highest in the profile's RF band) is reported \n
here. Byte numbers corresponding to different RX and RF, in this field \n
are here: \n
RF1     RF2     RF3 \n
RX0     1:0     9:8     17:16 \n
RX1     3:2     11:10   19:18 \n
RX2     5:4     13:12   21:20 \n
RX3     7:6     15:14   23:22 \n
1 LSB = 0.1 dB \n
Only the entries of enabled RF Frequencies and enabled RX channels are \n
valid. \n
The RX gain is measured using only ADC power and under assumption of a fixed
LB power for all RF1, RF2 and RF3 frequencies to avoid interference
impact. \n Therefore, RX gain shows around 10 dB deviation from
programmed RX gain across full temperature range. \n
For xWR1xxx devices: \n
The actual Rx gain of the device in dB = RX GAIN VALUE(Rf freq, Rx) +
(-38dBm) �� LOOPBACK_POWER_TEMP_dBm(Temp[C]) \n
Where LOOPBACK_POWER_TEMP_dBm (Temp[C]) = -0.07*Temp[C] �� 34 \n
Loopback power is -38 dBm around 50 C, and decreases with slope of
-7 dBm/100C. These formulae can be used for monitoring reports not affected
by interference. \n
For xWR6x43 devices: \n
RX gain value reported by the device assumes a constant loopback power.