You can use a sound card oscilloscope for many things. My favorite use is to study noise and interference signatures on the shortwave radio spectrum. Read more
Tag: hamradio
Plastic Worm Gear to Tune Loop Capacitor
So, here’s my mostly plastic worm gear for tuning a butterfly capacitor in a small transmitting loop. If you have a 3D printer, you can make one of these for under $10. Read more
ANAN versus RSPduo on HF – Surprising Results
Recently, I did my first head-to-head comparison of ANAN versus RSPduo on HF. I think the results will surprise you. Read more
ANAN-7000DLE MKII Plus Thetis Combination
It’s time to dig into the ANAN-7000DLE MKII plus Thetis software combination. You will see a combination of open source hardware and software that works really well. Read more
Mostly Plastic Rotator Works – Passes Smoke Test
Well, my design for a cheap, mostly plastic rotator for small loop antennas works. It took me a while to get this built. Read more
New Diversity Receiver First Run
Time for the first run of my new diversity receiver, the ANAN-7000DLE MKII. A few hiccups as I swung into action. Read more
ANAN-7000DLE MKII Setup Pretty Easy
My ANAN-7000DLE MKII setup went fairly smoothly. In this article I will cover getting ready for first use. Read more
My ANAN-7000DLE MKII Arrives from India
After a long wait, my ANAN-7000DLE MKII has arrived from India. This transceiver has the best diversity receiver I could afford. Read more
Multi-turn Loop Calculator – Figure It Out
Design your next small transmitting loop with a free multi-turn magnetic loop calculator from DG0KW and others. Read more
Loop Remote Control Electronics Board
Here is my loop remote control electronics board. Not a PCB, but a 3D printed mount for all the electronics modules. Read more