The ST321R-SF1SNF(CWH) from Sinclair Technologies is a Antenna with Frequency 406 to 420 MHz, Bandwidth 14 MHz, Gain 2.1 dBi, Power 50 W, Operating Temperature -40 to 60 Degree C. Tags: Monopole. More details for ST321R-SF1SNF(CWH) can be seen below.