Location requirements ContentsWarnings and cautionsGeneral location requirementsGNSS (GPS) location requirementsIn addition to general guidelines concerning the location of marine electronics, there are a number of environmental factors to consider when installing equipment with an internal GNSS (GPS) receiver.External GNSS (GPS) antenna location requirementsYour product includes a built-in GNSS (GPS) receiver and antenna. It is also possible to connect and use an external GNSS (GPS) antenna (such as the GA150) instead, which will provide improved performance.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