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Introduction Last August I discussed using the RTL-SDR for reception of HF Weather Fax information using a setup of Windows10/SDR#/FLDIGI (Ref.1). Recently I was asked whether OpenPlotter could be used to do the same thing. OpenPlotter has an equivalent program to SDR# called Gqrx which can be installed and used with the RTL-SDR (Ref.2). FLDIGI… Continue reading OpenPlotter – Marine HF Weather Fax

Introduction OpenPlotter has many excellent features that we explored in previous posts (Ref.3-Ref.9). Weather information is critical for sailors and OpenPlotter features a GRIB file viewer as well as the ability to overlay this information on OpenCPN. The weather information is contained in GRIB files that can be downloaded over an internet connection either from… Continue reading OpenPlotter – GRIB Files

Introduction AIS Automatic Identification System for Ships is a traffic system that uses VHF transponders on vessels to periodically send out location information. It was developed by Swedish inventor Hakan Lans and is similar in concept to the ADS-B transponder system used on aircraft for position reporting. AIS uses two VHF marine channels 87B (161.975 MHz)… Continue reading RTL-SDR for AIS Shortcut