Why do I need to use a NMEA amplifier?
If you connect several devices that need to know your position
at the NMEA output of your GPS there is the risk that one of the
devices connected to this output disturbs others. For example, a
turned off device overloads the NMEA bus much more than when it is
powered. This is particularly the case of VHF DSC. An NMEA output
is not intended to power more than 2 devices. In the event of
disturbances due to overloading the NMEA bus, the devices
connected to it will no longer receive the positioning data
regularly, which will cause positioning delays or no positioning
If you use a NMEA controlled autopilot, it is very important that
the data transmitted to it is perfectly reliable and regular.
The only solution to this problem is to install a NMEA
The NMEA AMN010-2 amplifier has a sensitive input that does not
overload the NMEA output of the GPS. This input is isolated by
opto-coupler which in addition to solving the problems of ground
loops and floating ground levels protects the GPS from any
possible return of disturbance coming from a device or wiring of
the installation. It has 4 powerful and independent outputs that
will provide your devices with reliable positioning data.
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