One of the reasons I love being on Twitter is that I learn so much from the #hamradio folks that I follow. Here’s what I learned about this morning.
QRM Guru
This morning, Jason Milldrum, @NT7S, tweeted:
I’ve mostly got the new shack set up and operating again, but now I need to tackle this nasty QRM. It’s across the entire tuning range of the Airspy HF+. Space approx. 30 kHz. Not sure if coming from our home or exterior. Any ideas?
To which, Onno Benschop, @owh, replied:
Use QRM Guru to figure it out: https://qrm.guru./blockquote>
This looks like a really great resource for finding and eliminating RFI.
Phil, @kb6nzv, also gave some great advice. He wrote, “Try plonking a large steel pot over suspect devices, while those sit on a sheet of aluminum foil. Instant Faraday cage.”
How MOSFETs work
Digikey posted a link to this video explaining how MOSFETs do what they do.
Analog Devices is awesome
Analog Devices makes a lot of great ICs used in communications. SnapEDA, @Snap_EDA tweeted:
AD6655BCPZ-80 is a mixed-signal intermediate frequency (IF) diversity receiver that features a multistage, pipelined architecture. This is designed to support communications where low cost, small size, and versatility are desired. bit.ly/2AaHQr3