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NMEA isolator: A must for any NMEA/GPS connection to a computer - Protect your equipment from serious ground fault problems. This simple device powered by your computer completely optically isolates the data in line from the computer RS232 port allowing you trouble free reception of NMEA data.Compatible with most charting packages. This device also allows you to safely boot your computer with a GPS connected and will stop Windows detecting the GPS receiver as a mouse.
Audio isolating filter - Significantly reduces DC noise from weather fax reception - hooks in line between the Xaxero weather fax demodulator and the Audio line of a radio receiver.