What is the JO-97 uplink frequency?

JO-97 listens on 435.100-435.120 MHz (CW linear) and 435.100-435.120 MHz (USB linear inverting).

What is the JO-97 downlink frequency?

JO-97 transmits on 145.855-145.875 MHz (CW linear), 145.855-145.875 MHz (USB linear inverting) and 145.840 MHz (BPSK 1k2).

When does JO-97 pass over my location?

Open JO-97 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.

JO-97

JY1SAT · amateur radio satellite, NORAD 43803

Heard today

Modes Linear, Digi Last heard 5 h ago Orbit LEO, 94 min

Track JO-97 on the live map Find it in the sky

Next passes over your station

Pass times depend on where you are. Track JO-97 on the live map to see its next passes over your station.

JO-97 frequencies

Uplink	Downlink	Beacon	Mode
435.100-435.120 MHz	145.855-145.875 MHz	—	CW linear
435.100-435.120 MHz	145.855-145.875 MHz	—	USB linear inverting
—	145.840 MHz	—	BPSK 1k2

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 JO-97

JO-97 (JY1Sat) is Jordan's first satellite, built under the Masar initiative at the Jordan University of Science and Technology and the Crown Prince Foundation, with support from ISIS, AMSAT-UK, AMSAT-NL and the Royal Jordanian Radio Amateurs Society. It was launched on 3 December 2018 on a Falcon 9 rocket as part of the SSO-A mission and is named after the callsign of King Hussein of Jordan, JY1, a well-known radio amateur.

The satellite is based on the FUNcube design. Its BPSK beacon, which carried telemetry and pictures of Jordan, stopped in May 2021, but the inverting U/v linear transponder still works for SSB and CW: uplink 435.100–435.120 MHz, downlink 145.875–145.855 MHz.

Status

Active: amateurs reported hearing JO-97 on AMSAT 5 h ago.

From reports filed on AMSAT, last 30 days.

Orbit

Type	Low Earth orbit
Altitude	449–457 km
Inclination	97.4°
Period	93.6 min
TLE epoch	2026-10-28 14:40 UTC

Orbital elements: CelesTrak, checked every 3 hours.

Questions about JO-97

What is the JO-97 uplink frequency?: JO-97 listens on 435.100-435.120 MHz (CW linear) and 435.100-435.120 MHz (USB linear inverting).
What is the JO-97 downlink frequency?: JO-97 transmits on 145.855-145.875 MHz (CW linear), 145.855-145.875 MHz (USB linear inverting) and 145.840 MHz (BPSK 1k2).
Is JO-97 active?: Active: amateurs reported hearing JO-97 on AMSAT 5 h ago.
When does JO-97 pass over my location?: Open JO-97 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.