
Use the antennas supplied with this kit. The VHF antenna supplied for use with the Nauticast™-B is omni-directional, vertically polarized with unity gain (0 dB) and a band width sufficient to maintain VSWR <1.5 over the frequency range 156–163 MHz. As a minimum the 3dB bandwidth will cover the two AIS channels and the DCS channel. The antenna is also suitable for marine shipboard applications (index of protection, ruggedness, means of mounting, etc.). If you elect to not use the antenna supplied