High-power, 3dB Hybrid Couplers useful in BTS applications for combining two transmitters to share one antenna or for use to distribute signals for in-building applications. Available in three bands: 400-520 MHz, 800-1000 MHz and 1700-2200 MHz. Unique air-line construction provides lowest possible insertion loss while delivering high isolation (30 dB typ), exceptional VSWR (1.10:1 typ) and superior phase balance (3 deg max). Rated for 500w (max). Made in USA and available from STOCK! 36 month warranty.