Key Specifications. Antenna Type Rubber Duck Polarization Vertical Minimum Frequency 136 MHz Maximum Frequency 174 MHz Connector 1 Polarity Standard Connector Series TNC Connector Gender Male Impedance 50 Ohm Maximum Input VSWR 1.5:1. 136-174 MHz Telescopic Antenna, 2.5 dBi gain,TNC Male Connector, Vertical Polarization. Vertical polarized antenna PEANRBD1031 from Pasternack is part of our extensive in-stock omni directional antennasthat ship the same day from our ISO 9001:2015 certified facility. The antenna with 136 to 174 MHz frequency range has amaximum input VSWR of 1.5:1. This omni directional antenna has TNC male connector. This antenna has a silver colored radome, an overall length of 17.2 in, width of 0.50 in, and weighs 0.22 lbs. Pasternack’sPEANRBD1031 is a single band antenna operating from 136 to 174 MHz with 2.5 dBi gain. Pasternack’s experts are on hand to assist you with any inquiries. Order this PEANRBD1031 antenna 7 days a week, 24hours a day using our on-line ordering system with no MOQs (minimum order quantity) and same-day shipping.