Category: Electronics

Electronics: Hardware, Simulation Software, Microcontrollers

RTL-SDR for Satellite Weather on GOES16 – Signal Capture

Introduction In the previous post we looked at planning for reception of GOES16(R) weather signals. We determined a ball-park estimate of a received level at -84dBm (assuming a satellite transmit power of 60dBmi) at an azimuth of 174deg and elevation angle of 39.4deg for a location in Toronto, Canada. Signal Capture for GOES16(R) Figure 1… Continue reading RTL-SDR for Satellite Weather on GOES16 – Signal Capture

RTL-SDR for Satellite Weather on GOES16 – Planning

Introduction In previous posts we looked at receiving weather information via HFWEFAX (Ref.1) and GRIB files (Ref.2) over an internet connection. In the next several posts, we will examine receiving weather information directly from a geostationary satellite GOES16(R) and see if it is suitable in a marine application for solo/family blue water sailors. My thanks… Continue reading RTL-SDR for Satellite Weather on GOES16 – Planning

HF Receiver Testing – Zero IF Direct Conversion_b

Introduction In the previous post (Ref.1) I examined the signal flow through the RPiZonia Zero IF Direct Conversion Receiver by examining the Block & Level testing diagram. Figure 1 shows the schematic diagram. Figure 2 shows the Block & Level testing diagram. Reception SW Station 11.930MHz In order to receive a shortwave station on 11.930MHz,… Continue reading HF Receiver Testing – Zero IF Direct Conversion_b

HF Receiver Testing – Zero IF Direct Conversion_a

Introduction Several years ago I developed a Zero IF Direct Conversion HF receiver (Ref.1) to be used as a lab component of my HF Telecommunications course (Ref.2). The idea was to learn HF theory by Scicos simulation, electronic circuit design (schematic capture, pcb design, LTspice simulation, working with smd) and testing with a scope and… Continue reading HF Receiver Testing – Zero IF Direct Conversion_a