I bought from ebay 3W 5.8GHz power amplifier made in China. I opened case and changed/removed SMA connector and input PI attenuator.
PA semiconductor are SiGe5004 http://www.skyworksinc.com/uploads/documents/SE5004L_202393B.pdf
0.8A @12V
input 0dBm output 26dBm
input 5dBm output 29dBm
input 8dBm output 31dBm
input 12dBm 33dBm
s57nml 