🛰️ Free Satellite Downlink SpecsNORAD #25544 · SPACE_STATION
ISS (International Space Station)
Humanity's largest crewed orbital outpost orbiting Earth 15.5 times a day at 27,600 km/h.
Frequency
145.800 MHz (FM Voice / SSTV) / 437.800 MHz
Modulation: FM / SSTV (PD120) / APRS Packet
Orbit Altitude / Inclination
418 km / 51.64°
📡 Free Reception Guide
Receive live astronaut voice & SSTV images for free on VHF 145.800 MHz using a basic handheld radio or RTL-SDR dongle.
NORAD Two-Line Element (TLE SGP4 Orbital Parameters)
1 25544U 98067A 26289.51234567 .00016717 00000-0 30124-3 0 9995
2 25544 51.6416 247.4627 0006703 130.5360 229.5775 15.49815570421034
🛠️ Recommended SDR Receiver Hardware & Decoding Stack
For VHF LEO satellites (137.9 MHz METEOR-M N2-4 LRPT & 145.8 MHz ISS), use a 120° V-Dipole or QFH circularly polarized antenna with an RTL-SDR V4 dongle and SatDump software.