On-air tests of the Wimo TA-1 turnstile antenna

A few months ago I started looking at various options for omnidirectional antennas with circular polarization for satellite communications. I came across the TA-1 137 MHz turnstile antenna from Wimo, which looked like an interesting option for a reasonable price.

Continue reading “On-air tests of the Wimo TA-1 turnstile antenna”

SSTV event from the International Space Station

In commemoration of the 20th Anniversary of ARISS, the International Space Station is transmitting Slow Scan Television on 145.800. The SSTV event started on the 20th July and will continue until the 24th.

Continue reading “SSTV event from the International Space Station”

NOAA-19, Meteor-M N2 and the Thumbnet N3 SDR Nongle

Back in December 2016, Shaun Whitehead of ThumbNet sent me of their new rtlsdr-based N3 Nongles but I was too busy to do anything serious with SDR. Now that I got a 137 MHz turnstile antenna up for testing I had an obvious opportunity to try it with the weather satellites.

Continue reading “NOAA-19, Meteor-M N2 and the Thumbnet N3 SDR Nongle”

My first weather satellite images with a 137 MHz turnstile antenna

Some time ago I got a 137 MHz turnstile antenna from Jørn OZ6TA. We decided to build an automated NOAA weather satellite image receiver using a modern SDR device. He also had an Airspy he wasn’t using and so it became the SDR radio we were going to use for this.

Continue reading “My first weather satellite images with a 137 MHz turnstile antenna”