The 19-450 from Chelton is a SATCOM Antenna with Frequency 240 to 400 MHz (UHF) / 1565 - 1586 MHz, 1217 - 1238 MHz (GPS), Gain 2 to 4.5 dBi, Input Power 200 W, Isolation 15 to 30 dB. Tags: Low Profile, Monopole. More details for 19-450 can be seen below.