My boat is made from Steel/Aluminium. What extra considerations do I need to take into account?
Metal has the ability to completely block radio transmission. The MOBi-lert system relies on constant radio transmissions to maintain the link from the PTX to the Console. With a properly mounted external antenna and a Console mounted with a bracket, good coverage will be possible in boats up to 20 Metres (60 feet) and possibly longer. The antenna has to be reasonably clear of metal 100mm (4″) and high enough to see all areas of the boat where you want coverage (refer to section 2.3 for Remote dipole antenna mounting). The tricky part is mounting the POD in an area that is accessable to crew before leaving the cabin. and making sure that the transmission back to the Console is reliable. Also, without extra antennas there will be very little coverage of internal areas so crew will have to remove their PTX before going too far below. NOTE: Optional external antennas can be used to cover shadows in the radio field and for areas below decks. Please contact Mobilarm for details.
