n order to maximise the remote communications signal strength, the unit should be positioned ashigh up as possible and, where practical, away from metal structures.However the unit should also be positioned such that exposure of users and / or bystanders to thepotentially dangerous radio frequencies ('RF') generated by the equipment are kept belowrecommended levels - for further details refer to Technolog Declaration of Conformity ('D of C')document 2099DC9000 associated with the Cello 4S, as well as the "RF exposureconsiderations" part of the "Standard connections - Port 5: External antenna connection" sectionof this document.