The frequently asked questions:
do I need to use a NMEA amplifier?
is the boat not positioned if the VHF is off?
The NMEA amplifier AMN010-2:
amplifier is a high performance NMEA amplifier. Its powerful,
independent outputs can be used with any device that has an
isolated NMEA input or not, regardless of its input impedance. Its
amplification ratio is greater than 1000. It has an auxiliary
input / output for coupling as many AMN010-2 amplifiers as
necessary to obtain the desired number of NMEA outputs without
mobilizing a power outputs.
more information about the NMEA amplifier AMN010-2