1.8MHz spurious of GSM

Hi Professionals,

Can somebody share his experience about 1.8MHz TX spurious emission.
Causes other than TRX (Transceiver) ?
Like for instance, PA's contribution..Transmit-receive switch's contribution..
layout issues...

Thanks greatly !

This specs is a wide band noise specs, so, you don't need to consider the transient (ramping). However, it's possible that the specs is violated because of the PA pulling.

Thanks Nxing,

Can I know more detailed about what kind of pulling for PA
, what kind of load condition ? If 1.8MHz is still within of PA control
loop bandwidth, still happens ?