Chris,
Please note the relation between dBm to dBuV relationship --
97 dBuV = approx. -10 dBm
128 dBuV = approx. -21 dBm
For measuring the TXC output power - Disconnect antenna and measure TX output power in to 50 ohm load - Where Tx output power is connected to a Ac coupled Spectrum Analyzer 50 ohm input.
Regards,
Naveen