torch 9800 blackberry only costs $171 05 to make so says isuppli <b><b>
This section is dominated by the communications processor, which features an integrated baseband from Marvell Technology Group Ltd. Coming in at fifth in terms of cost is the RF transceiver and power amplifier section, at $13.90, or 8.1 percent with a price of $10.60 and 6.2 percent share of the Bill of Materials. Components in this subsystem include the Texas Instruments WL1271A single-chip Bluetooth/WLAN/FM transmitter/receiver and the CSR GSD4t-9800 GPS receiver.
From: http://www.techeye.net/hardware/torch-9800-blackberry-only-costs-171-05-to-make

blackberry torch carries us$171 05 bom says isuppli
This section is dominated by the communications processor, which features an integrated baseband from Marvell Technology. Coming in at fifth in terms of cost is the RF transceiver and power amplifier section, at US$13.90, or 8.1% of the Components in this subsystem include the Texas Instruments WL1271A single-chip Bluetooth/WLAN/FM transmitter/receiver and the CSR GSD4t-9800 GPS receiver. Finally, there's the power management section, at US$4.90, or 2.9% of the BOM.
From: http://digitimes.com:8080/print/a20100818PR203.html

transmitterreceiver rangkaianelektronika com
rf schematics. toy car receiver L4=9 turns, .15mm wire on 4.5mm diameter tunable ferrite coil former Single-chip RF transmitter/receiver integrated circuits.
From: http://www.rangkaian-elektronika.com/single-chip-rf-transmitterreceiver-integrated-circuits.htm

what's in an rf front end?
If you ever needed to explain what an RF front end is, part one of this series on RF Front End design gets the job done for you.
From: http://www.eetimes.com/design/analog-design/4018954/What-s-in-an-RF-Front-End-

rf radio frequency transmitter circuits rangkaianelektronika com
Single-chip RF transmitter/receiver integrated circuits (8) Simple LM386 Audio Amplifier (7) Mini FM Radio Receiver (7) Mini Amplifier (7) Automotive car and motorcycle schematics (6)
From: http://www.rangkaian-elektronika.com/rf-radio-frequency-transmitter-circuits.htm

radio control schematics may 2007
Single-chip RF transmitter/receiver integrated circuits. MAX1470 315MHz Low-Power, +3V superheterodyne receiver; MAX1472 300-450MHz ASK transmitter
From: http://radio-control-schematics.blogspot.com/2007_05_01_archive.html