GPS navigation and timing systems are a necessity in almost every market place spanning both commercial and military applications. Operating reliably in an increasingly crowded RF Spectrum is a continuously evolving challenge to system designers. Performance is dependent upon receiving a clean signal free from intentional and unintentional interferers. The product exhibits excellent anti-jam performance as well as a Sub 2 dB noise figure. The 312 Series is qualified to the most critical of environments for military and airborne applications and available in low order quantities with a short lead time.