Location requirements ContentsWarnings and cautionsPotential ignition sourceGeneral location requirementsGNSS (GPS) location requirementsYour product includes a built-in GNSS (GPS) receiver that, in order to obtain a position fix, requires connection of an external passive antenna, such as the GA150 antenna.Antenna mounting and EME exposureEnsure that your VHF antenna is connected to the radio before transmission.Multiple antenna installationsImportant additional considerations when installing multiple antennas.Loud hailer location requirementsWireless product location requirementsThe optional wireless hub, handset and active speakers require further considerations when selecting a mounting locationPrevious topic: Product dimensionsNext topic: Cables and connections — General information