GPS design issues in handheld devices-whitepaperGPS Design Issues in handheld devices - Whitepaper Abstract This document discusses common GPS implementation problems in portable devices. Typically the performance of GPS is highly reduced in PND, PDA, Feature Phone and Smart Phone devices due to lack of understanding of basic HW/RF design and EMI issues. The root cause arises typically from both poor antenna design/selection and internal EMI interference. GPS signal power level in open sky environment is nominally ……