Category: Electronics

Introduction In the previous two posts (Ref.1/2) I looked at re-purposing my GOES16 equipment for reception of the so called hydrogen line at 1420MHz/21cm. I did a quick test on the LNA/BPF using an input random noise test. The bandpass was about 65MHz flat and 75MHz half way down the edges as shown in Figure… Continue reading Radio Astronomy LNA/BPF Testing with NanoVNA

Introduction In the previous post I looked at my receiving equipment used for GOES16 to see if I could re-purpose it for reception of the so called hydrogen line at 1420MHz/21cm. The L band dish had a reasonable VSWR at 1420MHz, but the LNA/BPF was not suitable as it was centred on 1694MHz. I ordered… Continue reading RTL-SDR for Radio Astronomy-LNA/BPF Testing

Introduction Recently I designed a semi-permanent balcony mount for my GOES16 satellite dish. Last year, I was able to receive images over a ten minute period just balancing the dish, but this time I was able to download for hours on end. Receiving those images from 42000Km in space was truly amazing. It brought we… Continue reading RTL-SDR for Radio Astronomy-Planning

Introduction In previous posts, I looked at receiving weather information over NOAA (Ref.1), GOES (Ref.2) and HF WEFAX (Ref.3). Various weather agencies also transmit marine weather information over HF SITOR (Simplex Teletype over Radio). SITOR is an RTTY teletype system with advanced features of error detection, redundancy and re-transmission not included in the regular Baudot… Continue reading RTL-SDR for Marine Weather on HF SITOR

Introduction Last year I managed to receive GOES16 images using a temporary pole mounted dish (Ref.1/6). This was in early September. Shortly after this our balconies were closed off for repairs and only recently opened. I decided to make a more permanent dish mount so that I could receive images for several hours without having… Continue reading GOES16 Weather Satellite – Signal Capture with Dish Balcony Mount