Oops... the label fell off... note the variable capacitor.
Under the large RF shield. Receive section to the right, and receive pre-amplifiers in the middle.
Under the large RF shield. Picture 2
Closeup under the large RF shield. Large IC is a LMX2240. Silver rectangle in upper part of the picture is either a crystal or filter. It has a Murata logo. The 6-pin IC on the left is the RF power amp, it's a MGA-83563.
Closeup of the 2.4 GHz LPF, PIN diode switch, 50 Ohm strip line, output matching network, and dropping resistors.
Closeup of the RF input to the MGA-83563, and the input attenuator pad.