Sunday brings a bit of everything: orbital housekeeping as spacewalkers swap a failed station antenna, homebrew ingenuity turning a humble 555 into something useful, and fresh gear from a familiar QRP name. There's also sobering news from the shortwave world, so pour a coffee and settle in.

In today’s roundup

• ANS-235 AMSAT News Service Weekly Bulletins — AMSAT
  This week's AMSAT bulletin covers a spacewalk to remove a failed station antenna, a new ARISS-USA education director, and student-built satellites like JAMX01 and BY70-4.
• Open-Source ExpressLRS Receiver Reaches for Range — Hackaday · Radio
  A reminder of what clever protocols can do with a single watt, as open-source ExpressLRS pushes drone control links toward impressive range.
• ICQPodcast Episode 491 – The Science of Making Distant Contacts — AmateurRadio.com
  The ICQ crew digs into the science behind working DX alongside their usual roundup of ham radio news in brief.
• 555 Makes a Useful Beat Frequency Oscillator — Hackaday · Radio
  Proof the venerable 555 still earns its keep, hacked into a beat frequency oscillator so a cheap rig can copy modes it couldn't out of the box.
• KM4CFT Announces the New CFT1v2 With Two New Features — QRPer
  Jonathan KM4CFT follows up his well-loved CFT1 with a v2 sporting two new features, welcome news for the field-radio crowd.
• FEBC Philippines plans to close March 2027 — The SWLing Post
  Another voice preparing to leave the shortwave bands as FEBC Philippines announces plans to shut down its SW service in March 2027.

Read this roundup on HamDaily →

HamDaily Digest · Live band conditions · hamdaily.com