Great fun with SDR Receiver MSI2500 in combination with SDRuno software. I am exploring the possibilities of this nice toy.
The SDR receiver (frequency range 30 - 1000 MHz) has 5 antenna inputs each with its own bandfilter
SDRuno software in action ( Repeater PI2NOS, 430.125 MHz selected)
Experiment with E-field antenna for low frequency signals (< 10 MHz ).
I wrote an article for the Dutch radiomagazine Electron, NL-Post, Nov. 2023, about this SDR receiver:
Yesterday evening I witnessed the sunset from my backyard garden.
I realized that it is amazing that a star at a distance of 150 million kilometers from us affects the propagation of radio signals on earth. During daytime the solar wind presses the Kennelly-Heaviside layer closer to the earth, thereby limiting how far it can reflect radio waves. The effect is also influenced by the amount of sunspot activity.
For a change, last week I was active on 160 m. With my end-fed longwire antenna - in the evening hours - I managed to work a couple of stations. One of them was HB9EFK. This was my first with Switzerland on 160 m.
