What is the KNACKSAT-2 uplink frequency?

KNACKSAT-2 listens on 145.825 MHz (FSK 9k6).

What is the KNACKSAT-2 downlink frequency?

KNACKSAT-2 transmits on 145.825 MHz (FSK 9k6).

When does KNACKSAT-2 pass over my location?

Open KNACKSAT-2 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.

KNACKSAT-2

amateur radio satellite, NORAD 67683

Not heard today

Modes Digi Last heard 23 Oct 2026 Orbit LEO, 91 min

Track KNACKSAT-2 on the live map Find it in the sky

Next passes over your station

Pass times depend on where you are. Track KNACKSAT-2 on the live map to see its next passes over your station.

KNACKSAT-2 frequencies

Uplink	Downlink	Beacon	Mode
145.825 MHz	145.825 MHz	—	FSK 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 KNACKSAT-2

KNACKSAT-2 is a 3U CubeSat of King Mongkut's University of Technology North Bangkok (KMUTNB) in Thailand, the follow-on to KNACKSAT, the first satellite built entirely in Thailand. It was released into orbit from the Japanese Kibo module of the International Space Station on 3 February 2026, so its orbit started close to that of the ISS; CelesTrak gave about 350 km in October 2026.

The satellite carries several payloads for Thai organisations, including a camera, an IoT store-and-forward experiment and an ultraviolet sensor, which use non-amateur frequencies. Its amateur payload, developed with the Radio Amateur Society of Thailand, is an APRS digipeater on 145.825 MHz for both uplink and downlink.

Note that the digipeater uses 9600 baud FSK, not the 1200 baud AFSK used by the ISS and most APRS satellites on the same frequency, so you need a 9600 baud capable radio and TNC or software modem to use it.

Status

Not heard today. The last AMSAT report of KNACKSAT-2 being heard was 23 Oct 2026.

From reports filed on AMSAT, last 30 days.

Orbit

Type	Low Earth orbit
Altitude	336–349 km
Inclination	51.6°
Period	91.4 min
TLE epoch	2026-10-28 08:15 UTC

Orbital elements: CelesTrak, checked every 3 hours.

Questions about KNACKSAT-2

What is the KNACKSAT-2 uplink frequency?: KNACKSAT-2 listens on 145.825 MHz (FSK 9k6).
What is the KNACKSAT-2 downlink frequency?: KNACKSAT-2 transmits on 145.825 MHz (FSK 9k6).
Is KNACKSAT-2 active?: Not heard today. The last AMSAT report of KNACKSAT-2 being heard was 23 Oct 2026.
When does KNACKSAT-2 pass over my location?: Open KNACKSAT-2 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.