RF3600E Ideal Front-End Filter for European Wireless Receivers Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Complies with Directive 2002/95/EC (RoHS) Pb 868.60 MHz SAW Filter The RF3600E is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 868.6 MHz receivers. Receiver designs using this filter include superheterodyne with 10.7 MHz or lower intermediate freq.