Milling a high pass filter board with your desktop CNC is a good beginner’s project. Here is how I made mine. Read more
Category: Shortwave Radio
Wideband Loop Antenna Mounts on Thingiverse
I have published the final version of my wideband loop antenna mounts on Thingiverse. Anyone with a 3D printer can make these, cheap and cheerful. Read more
Crossed Loop Performance – Null Your RFI
Time for us to check out crossed loop performance for reducing local RFI. You will find the above picture worth a thousand words. Here’s few more. Read more
Crossed Wideband Loops In Action
Is that an eggbeater on my fence? No, it’s my new crossed wideband loops configuration for easily switching directions. Read more
AAA-1C Amplifier Box Modifications
Today, we will talk about a couple of 3D printed solutions to improve mounting and using the AAA-1C amplifier box. Read more
Checking Propagation from All India Radio in Bangalore
A quick listen to certain shortwave stations will tell you how well HF is going to work that day. Here’s my simple way of checking propagation.
Read more
Commercial LZ1AQ Control Box 3D Printed
Love my 3D printer. This week, I used it to build my commercial LZ1AQ control box with PETG filament. Read more
AAA-1C Wideband Loop Performance – It’s Real
Yes, this is definitely a real antenna. AAA-1C wideband loop performance compares very well to traditional city-lot ham radio antennas. Read more
Commercial LZ1AQ Dual Loop Performance
My first check of commercial LZ1AQ dual loop performance was very successful. Here is the story. Read more
Active Antenna Amplifier Loop Configuration
Active antenna amplifier loop configuration provides a whole range of interesting choices. I am going to try the dual crossed loop setup. Read more