The QSR7F7F0300 quarter wave stub device features best-in-class performance specifications, including bi-directional protection, low VSWR (1.05 typical), high RF power and ultra-low let-through (5V typical). Using robust materials in construction the maintenance free quarter wave series is ruggedized, weatherproof to IP68 standards, and can withstand multiple strikes as well as very high transients up to 100kApk.