Weekly Newsletter - September 13, 2026
Front-end filtering took centre stage this week as the community weighed SAW filters against Chebyshev high-pass alternatives for 433 MHz reception, and compared Lilygo boards for tracking low-band satellites around 137 MHz. Meanwhile the satellites from the recent Norwegian ISAR launch began reporting in, with FramSat-1 already delivering telemetry on every pass, while a station struggling with CRC errors got practical noise-floor and antenna advice. From group-delay curves to a brand-new station coming online with a little help from friends, it was a week that balanced hard RF engineering with the community spirit of getting newcomers on the air.







