Milling a high pass filter board with your desktop CNC is a good beginner’s project. Here is how I made mine. Read more
Tag: SWL
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
Simple Cable Feed Through for Outside Antennas
Use your 3D printer to make a simple cable feed through for coaxial or Ethernet cable. Bring your antenna cables into the shack easily. Read more
Useful Coax Cable Adapters
If you are a radio nut like me, your junk box is probably full of useful coax cable adapters. Boy, these sure come in handy. Read more
Dual Wideband Loop Controller
I am almost ready to experiment with diversity reception. My latest project is a dual wideband loop controller which works well. Read more
Revised LZ1AQ Amplifier PCB Up and Running
Shortly after Christmas, I finally got around to building and mounting my revised LZ1AQ amplifier for a wideband loop. My previous PCB design contained less features and required an outboard cable connection. Read more
SWL Handbooks Remembered
SWL Handbooks provided me with a useful reference for broadcast schedules. Equipment reviews really got my attention, though. Read more
CIDX Newsletter – 1960’s Gestetner Memories
Today, your club newsletter is a PDF or web page. Back in the 1960’s, we made them using a Gestetner. It took hours to produce and print. Read more
Best OpenWebRX Remote Receivers
Only a few of the many remote receivers on SDR.HU have great performance (low noise). Check out my list of best OpenWebRX Remote Receivers. Read more