What is the CROCUBE uplink frequency?

CROCUBE listens on 436.775 MHz (GFSK 9k6).

What is the CROCUBE downlink frequency?

CROCUBE transmits on 436.775 MHz (GFSK 9k6) and 436.775 MHz (GFSK 9k6).

When does CROCUBE pass over my location?

Open CROCUBE 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.

CROCUBE

amateur radio satellite, NORAD 62394

Heard today

Modes Digi Last heard 22 h ago Orbit LEO, 92 min

Track CROCUBE on the live map Find it in the sky

Next passes over your station

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

CROCUBE frequencies

Uplink	Downlink	Beacon	Mode
436.775 MHz	436.775 MHz	—	GFSK 9k6
—	—	436.775 MHz	CW 20 bd
—	436.775 MHz	—	GFSK 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.

About CROCUBE

CroCube is Croatia's first satellite, a 1U CubeSat of the Society for Out-of-Frame Education (Društvo EVO), built with the company Spacemanic and launched on 21 December 2024 on SpaceX's Bandwagon-2 rideshare from Vandenberg, on the same flight as the Czech LASARsat. It was designed mainly for amateur radio: to serve radio amateurs in Croatia and worldwide, and to give students hands-on experience with satellite communication. It also carries a camera and Astrotron 1000, a module that was the first Croatian-built hardware in space.

Its UHF downlink on 436.775 MHz carries AX.25 telemetry at 9600 baud (GFSK, G3RUH), a CW beacon, special messages for anniversaries, experimental SSDV pictures and a digipeater. AMSAT lists the digipeater with the path alias 9A0CC.

Like LASARsat, CroCube flies in a 45° inclination orbit, so it is best placed for stations at mid and low latitudes.

Status

Active: amateurs reported hearing CROCUBE on AMSAT 22 h ago.

From reports filed on AMSAT, last 30 days.

Orbit

Type	Low Earth orbit
Altitude	383–395 km
Inclination	45.0°
Period	92.3 min
TLE epoch	2026-10-28 11:34 UTC

Orbital elements: CelesTrak, checked every 3 hours.

Questions about CROCUBE

What is the CROCUBE uplink frequency?: CROCUBE listens on 436.775 MHz (GFSK 9k6).
What is the CROCUBE downlink frequency?: CROCUBE transmits on 436.775 MHz (GFSK 9k6) and 436.775 MHz (GFSK 9k6).
What is the CROCUBE beacon frequency?: The beacon is on 436.775 MHz.
Is CROCUBE active?: Active: amateurs reported hearing CROCUBE on AMSAT 22 h ago.
When does CROCUBE pass over my location?: Open CROCUBE 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.