Introduction In the previous posts I looked at MSK144 and FSK441 which are WSJT-X/WSJT digital communications protocols or so called “fast modes” used for Meteor Scatter. In this post I will look at FT8 (Ref.1 & Ref.2) which is part of the WSJT-X series of protocols used for weak signal communication over all the HF/VHF… Continue reading WSJT-X FT8 Modulator – Scicos Simulation

Introduction I remember first becoming interested in Meteor Scatter when I read an article by the Finnish company Vaisala Oy about sending weather telemetry from remote locations (Ref.1). Since Canada is a huge country, this seemed to be an innovative way to back haul data. In a previous post I looked at FSK441 which was… Continue reading WSJT-X MSK144 Modulator – Scicos Simulation

Introduction Joe Taylor K1JT came out with a ground breaking paper in the December 2001 issue of the ARRL magazine QST (Reference 1). He described a new digital modulation scheme “WSJT” (Weak Signal Communication by Joe Taylor) using a 4FSK modem that was designed to perform well over 6m & 2m amateur radio meteor scatter… Continue reading WSJT FSK441 Modem – Scicos Simulation