What is the RS57S downlink frequency?

RS57S transmits on 436.080 MHz (GMSK USP 4k8), 436.080 MHz (GMSK USP 2k4) and 436.080 MHz (GMSK USP 9k6).

When does RS57S pass over my location?

Open RS57S on the live map and enter your Maidenhead locator or use GPS: the tracker lists the passes of the next 24 hours with AOS, maximum elevation and LOS, and shifts the frequencies for Doppler.

RS57S

MONITOR-4 · amateur radio satellite, NORAD 57182

Heard today

Modes Digi Last heard 11 h ago Orbit LEO, 94 min

Track RS57S on the live map Find it in the sky

Next passes over your station

Pass times depend on where you are. Track RS57S on the live map to see its next passes over your station.

RS57S frequencies

Uplink	Downlink	Beacon	Mode
—	436.080 MHz	—	GMSK USP 4k8
—	436.080 MHz	—	GMSK USP 2k4
—	436.080 MHz	—	GMSK USP 9k6

Nominal frequencies, without Doppler. The live map shifts them for your station during a pass. Frequencies: SatNOGS DB (modified: working amateur transmitters only, in MHz), CC BY-SA 4.0.

Status

Active: amateurs reported hearing RS57S on AMSAT 11 h ago.

From reports filed on AMSAT, last 30 days.

Orbit

Type	Low Earth orbit
Altitude	468–482 km
Inclination	97.5°
Period	94.1 min
TLE epoch	2026-10-28 14:37 UTC

Orbital elements: CelesTrak, checked every 3 hours.

Questions about RS57S

What is the RS57S downlink frequency?: RS57S transmits on 436.080 MHz (GMSK USP 4k8), 436.080 MHz (GMSK USP 2k4) and 436.080 MHz (GMSK USP 9k6).
Is RS57S active?: Active: amateurs reported hearing RS57S on AMSAT 11 h ago.
When does RS57S pass over my location?: Open RS57S on the live map and enter your Maidenhead locator or use GPS: the tracker lists the passes of the next 24 hours with AOS, maximum elevation and LOS, and shifts the frequencies for Doppler.