9008-2 RF,In NCO mode, 9008-2 TX output signal power, can I use the TALISE_setTxAttenuation() API to set the signal power?

In NCO mode, 9008-2 TX output signal power, can I use the TALISE_setTxAttenuation() API to set the signal power?

for example:
9008-2 TX output is (2Ghz LO + 10M NCO tone) frequency, 0db power signal, in NCO mode
I can call TAilse_API:


uint16_t setTxAttenuation_mdB=1000;
TALISE_setTxAttenuation( &talDevice,TAL_TX2,setTxAttenuation_mdB);
talAction = TALISE_setRxTxEnable(&talDevice, TAL_RXOFF_EN, TAL_TX1TX2);

Then get a signal about 2.01Ghz fequency -10db power,。is this method OK?