Avoid PC-Layout "Gotchas" in ISM-RF Products (PDF) Requirements of Remote Keyless Entry (RKE) Systems (PDF) Power Amplifier Theory for High-Efficiency Low-Cost ISM-Band Transmitters (PDF) Radiated Power and Field Strength from UHF ISM Transmitters (PDF) FCC and ETSI Requirements for Short-Range UHF ASK-Modulated Transmitters (PDF) RF Basics (PDF) Introduction to Hearing Aids and Important Design Considerations (PDF) Data Slicing Techniques for UHF ASK Receivers (PDF) Important Design Considerations for Heart-Rate and Fitness Monitors (PDF) How to Optimize an ISM Radio Frequency (RF) System (PDF) Radio Link-Budget Calculations for ISM-RF Products (PDF) General Layout Guidelines for RF and Mixed-Signal PCBs (PDF)