Observed arrival · 2026-09-20
ASTRA: A One-Metre Radio Telescope for the Workshop
ASTRA presents an affordable open-hardware radio telescope, its prototype build, and a plan for a shared network of independent observers.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Students, open-hardware builders, and amateur radio astronomers
- Worth noticing
- The prototype uses eight printed reflector sections and reports a S$300.71 build cost.
Field notes
The homepage breaks the instrument into a reflector, feed, mount, and control system, with photographs and links to a written field report. It describes eight printed reflector sections, aluminium profiles, and a computer-connected motor board. The first assembly at East Coast Park surfaced mechanical rigidity and receiver-calibration problems, while a community forum and future interferometry work remain presented as plans.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade
One card from the complete issue