Weather Satellite Decoder
Receive and decode weather images from NOAA and Meteor satellites.
Uses SatDump for live SDR capture and image processing.
Antenna Guide (137 MHz)
Weather satellites transmit at ~137 MHz. Your stock SDR antenna likely won't work well at this frequency.
V-Dipole (Easiest Build)
- Two elements, ~53.4 cm each (quarter wavelength)
- Spread at 120 angle, laid flat or tilted
- Connect to SDR via coax with a BNC/SMA adapter
- Cost: ~$5 in wire
QFH Antenna (Best)
- Quadrifilar helix - omnidirectional RHCP
- Best for overhead passes, rejects ground noise
- Build from copper pipe or coax
- Cost: ~$20-30 in materials
Tips
- Outdoors with clear sky view is critical
- LNA (e.g. Nooelec SAWbird) helps a lot
- Enable Bias-T if using a powered LNA
- Passes >30 elevation give best images