Take time out to understand the source and complexity of power system interference spectrum. My video explains where a lot of RFI comes from around your house. Read more
Tag: hamr
Wideband Loop Signal Chains with Software Defined Radio
You need to understand your wideband loop signal chains and their limitations. Then, you can get the most performance out of your radio investment. Read more
Diversity Reception Primer – Improving Radio Reception
It started nearly a century ago, with efforts to reduce the effects of multipath fading. Here’s the complete diversity reception primer. Read more
Early ANAN Receiver Highlights
So, I have been using my ANAN-7000DLE MKII software defined radio for just over a month. Here is a mini-review of early ANAN receiver highlights. Read more
Sound Card Oscilloscope for SDR
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
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