UHF Radio Beacon for Lost RC Models

UHF Radio Beacon for Lost RC Models

Flying quadcopters (AKA “drones”) and other RC aircraft can be a lot of fun, but if you happen to land and/or crash in an unknown area, things become more difficult. To make this a bit easier, ExpertRC is offering a tiny 433 MHz Beacon tracker for lost RC models. When...
3GHz VNA for Under $60?!

3GHz VNA for Under $60?!

While not every hacker has a vector network analyzer on their bench, those into the RF side of things likely do. VNAs have long had a cloud of mystery about them, due to their (at a glance) unintelligible display output. However, they are in essence a very simple pair...
Small, Low Power, High Accuracy GPS!

Small, Low Power, High Accuracy GPS!

GPS modules are coming down in price, with cheaper units made overseas being available for under $10. However, they come with some disadvantages. They typically have lower accuracy, and worse reception. This means it takes a lot longer to get an initial fix, like the...