The largest problem facing analog AM broadcasting (and digital Medium Frequency and High Frequency broadcasting) is RF Noise. Like most people, I have many modern conveniences that make my life easier than previous generations; electric lights, central heat and air conditioning, appliances like vacuum cleaners, microwave ovens, and whatnot. I enjoy the wireless internet, have … Continue reading I Audited the RF Noise in my House
I found a great resource for learning about test and measurement on Rohde Schwarz’s YouTube channel. Each video is about 5 to 15 minutes long and covers the basics of RF test equipment, measurement parameters, and definitions. Rohde Schwarz Test and Measurement Fundamentals Measuring RF systems is an important part of Broadcast Engineering. Many folks … Continue reading Rohde Schwarz Test & Measurement Fundamentals
That is indeed a good question. There may be several explanations; a pirate, somebody’s Part 15 device, or atmospheric ducting. If the weather is good, tropospheric ducting can cause VHF (FM broadcast) and UHF (TV broadcast as well as Remote Pickup units and STLs) signals to travel far beyond their intended reception areas. The Troposphere … Continue reading Summer Time Atomspherics; Why is there another FM station on our frequency!!??
This is an adjunct to my previous post on creating a Stratum 1 NTP time server with a Raspberry Pi. I finished this project about a year ago, and I have to say it has been running flawlessly since then. I thought that perhaps the inexpensive GPS module designed to work with drones might not … Continue reading GPS controlled clock based on Raspberry Pi
