The Ionosphere
The ionosphere is a layer of Earth's atmosphere 60 to 1,000 km above the planet. Ionised by solar radiation it can reflect radio...
13 June, 2024
This is a place of thought and reflection for all sorts of curiosities that have come across my web browser over the course of time. The topics could be broad, and most likely will be, however, they will normally be of a technical nature.
Callsign beeper CW kit interface for microwave path lineups
This is a callsign beeper CW interface for the CW jack on your radio ideally used for microwave path line ups. Just build,...
08 December, 2023
Latching coaxial relay switching
A simple latching coaxial relay switching circuit and PCB for amateur radio microwave use driven by +12v from a sequencer or transverter....
18 November, 2023
External Frequency Reference for Microwave applications
GPSDOs for external frequency reference for microwave applications are a good idea, especially for weak signal QSO as well as Q65 contact....
06 August, 2023
5.7 GHz 10w PA from SG Lab
The new 5.7 GHz 10w PA from SG Lab is a well-priced power amplifier for the 6cm amateur band. Great for going to...
21 July, 2023
IC-705 OmniRig ini file
Do you contest with the IC-705? The Icom IC-705 is a relatively new radio when it comes to OmniRig. So new in fact...
14 March, 2023
Real-time DX notifications on your device – HamAlert
Real-time DX notifications on your device - HamAlert is an app available for both apple and android devices....
08 February, 2023
Cheap 1296 MHz Antennas
Here are two cheap 1296 MHz Antennas - well one is a lot cheaper than the other. There is no comparison in cost...
22 January, 2023
Local Radio Interference
There are two types – one you can’t do much about such as power line interference and the neighbour’s solar installation, and one...
19 September, 2022
Solar termination events
Understanding the Sun and its cycles is key to predicting space weather....
17 September, 2022