CAMST’s amateur radio payload CAS-6 piggybacked on a technology test satellite TIANQIN-1 launched at 03:21 UTC on December 20, 2019 at the Taiyuan Satellite Launch Center of China using a CZ-4B launch vehicle.
Update December 20: Alan BA1DU reported:
“Today CAS-6 has been successfully launched, the satellite is currently in orbit testing, the amateur radio payload is expected to be operational in about three days. Thank you for your interest.”
The primary payload of this launch is China-Brazil Earth Resources Satellite CBERS-4A.
Satellite Name: CAS-6/TIANQIN-1
• Orbit type : SSO
• Apogee : 629km
• Inclination : 97.89˚
• Period : 97min
Satellite Architecture: Micro-satellite
• Mass: 35kg
• Stabilization: three-axis stabilization system with its +Y surface facing the earth
Amateur Radio Payload:
• Call sign: BJ1SO
• VHF Antenna: one 1/4λ monopole antenna with max.0dBi gain is located at +Z side
• UHF Antenna: one 1/4λ monopole antenna with max.0dBi gain is located at -Z side
• CW Telemetry Beacon: 145.910 MHz 17dBm
• AX.25 4.8k Baud GMSK Telemetry: 145.890 MHz 20dBm
• U/V Linear Transponder Downlink: 145.925 MHz 20dBm, 20 kHz bandwidth, Inverted
• U/V Linear Transponder Uplink: 435.280 MHz
CAS-6 Satellites Digital Telemetry Description
CAS-6 CW Telemetry Encoding Format
CAMSAT News Release for CAS-6 Satellite
FloripaSat-1 CubeSat carrying a Digital Repeater payload is on the same launch as CAS-6
CAMSAT has released details of three new amateur radio satellites, CAS-5A, CAS-5B and CAS-6, that are hoped to launch in September 2018. Two of the satellites CAS-5A and CAS-6 will carry transponders.
CAS-5A a 6U CubeSat which will include the following capabilities:
• HF/HF – H/T Mode Linear Transponder
• HF/UHF – H/U Mode Linear Transponder
• HF – CW Telemetry Beacon
• VHF/UHF – V/U Mode Linear Transponder
• VHF/UHF – V/U Mode FM Transponder
• UHF – CW Telemetry Beacon
• UHF – AX.25 4.8k/9.6k Baud GMSK Telemetry.
The transponders will have 30 kHz bandwidths except the H/U one which will be 15 kHz. Planning a launch in September 2018 from the Jiuquan Satellite Launch Center into a 539×533 km 97.5 degree orbit.
CAS-5B a femto-satellite architecture 90Lx80Wx50H mm with a mass of 0.5kg Proposing a UHF CW beacon and to be deployed from CAS-5A when in space.
CAS-6 a 50 kg micro satellite approx 490 x 499 x 430 mm. It will include:
• VHF CW Telemetry Beacon
• U/V Mode 20 kHz Linear Transponder
• AX.25 4.8k baud GMSK telemetry downlink
• Deployable Antennas
• Solar Panels, Lithium ion battery and power controller
• Integrated Housekeeping Unit
• Three-axis stabilization system
• Atmospheric Wind detector
• S-band TT&C system (non-amateur radio band)
• X-band Data link system (non-amateur radio band)
Planning a Sea Launch Pad from the China Academy of Launch Vehicle Technology in September 2018 into a 579 x 579 km 45 degree orbit.
IARU Satellite Frequency Coordination Status http://www.amsat.org.uk/iaru/