In this post we will look at how to take a sextant altitude Hs. In the following post, we will look at how to reduce Hs to Ha and then to Ho. Ho will then be compared with Hc to determine an intercept. The complete details are contained in Ref.1. Complete Sight Reduction procedures are… Continue reading Celestial Navigation Basics – Hs Sextant Altitude
Scilab & ScicosLab – Scicos Visual Blocks
Scilab and ScicosLab are Open Source Math Programs that can be used in various engineering and scientific applications. I use ScicosLab with the Modnum tool box in all my Telecommunications work, but both Scilab/ScicosLab can be used for all the mathematics involved in my CelNav EBook. In a previous post (Ref.1) I introduced the programs… Continue reading Scilab & ScicosLab – Scicos Visual Blocks
Scilab & ScicosLab – WAV Files
Scilab and ScicosLab are Open Source Math Programs that can be used in various engineering and scientific applications. I use ScicosLab with the Modnum tool box in all my Telecommunications work, but both Scilab/ScicosLab can be used for all the mathematics involved in my CelNav EBook. In a previous post (Ref.1) I introduced the programs… Continue reading Scilab & ScicosLab – WAV Files
Scilab & ScicosLab – Graphs
Scilab and ScicosLab are Open Source Math Programs that can be used in various engineering and scientific applications. I use ScicosLab with the Modnum tool box in all my Telecommunications work, but both Scilab/ScicosLab can be used for all the mathematics involved in my CelNav EBook. In a previous post (Ref.1) I introduced the programs… Continue reading Scilab & ScicosLab – Graphs
Splat!_RF Signal Propagation Calculations_2
Example Regional Coverage Analysis In the previous post, I discussed how to use the Friis equation to determine the free space loss and receive level between a transmitter and receiver (Ref.1). The example was for an AIS Class B transmitter on a sailing yacht communicating with another boat at a distance of 10 nautical miles.… Continue reading Splat!_RF Signal Propagation Calculations_2