Key Specifications. Antenna Type Rubber Duck Polarization Vertical Minimum Frequency 400 MHz Maximum Frequency 520 MHz Connector 1 Polarity Standard Connector Series SMA Connector Gender Female Impedance 50 Ohm Maximum Input VSWR 1.5:1. 400-520 MHz Rubber Duck Antenna, 2.15 dBi gain, SMA-Female Connector, Vertical Polarization. Vertical polarized antenna PEANRBD1021 from Pasternack is part of our extensive in-stock omni directional antennas that ship the same day from our ISO 9001:2015 certified facility. The antenna with 400 to 520 MHz frequency range has a maximum input VSWR of 1.5:1. This omni directional antenna has SMA female connector, This antenna has a black radome made of TPE, an overall length of 5.90 in, width of 0.50 in, and weighs 0.022 lbs. Pasternack’s PEANRBD1021 is a single band antenna operating from 400 to 520 MHz with 2.15 dBi gain, Pasternack's experts are on hand to assist you with any inquiries. Order this PEANRBD1021 antenna 7 days a week, 24 hours a day using our on-line ordering system with no MOQs (minimum order quantity) and same-day shipping,.