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AWR1843: How can I backoff TX power & reduce RX gain?

Part Number: AWR1843

Sir,

As the following profile, TX no backoff & RX gain is 40dB or 30dB?

profileCfg 0 77 3 3 24 0 0 15 1 256 12500 0 1 40

if I want to backoff  10dB for all of TX1, TX2, TX3, may I know if I need to modify this profile as

profileCfg 0 77 3 3 24 657930 0 15 1 256 12500 0 1 40

Moreover, if I want to further reduce the total RX gain into 26dB, if I need to modify as

profileCfg 0 77 3 3 24 657930 0 15 1 256 12500 0 1 216

which is RX gain as 26dB, RX VGA gain as 24dB

JY