AMSAT-UK

///////////////////////////////////////////
CAS-4A and CAS-4B Launch Expected - Frequencies Coordinated

Posted: 13 Mar 2017 12:51 PM PDT
https://amsat-uk.org/2017/03/13/cas-...ponder-sats-2/

XW-2A satellite was launched September 19, 2015

CAMSAT has worked closely with a Beijing Government aerospace contractor to
build two satellites with amateur radio linear transponder payloads. IARU
record a launch had been planned for March 31, 2017Â*from Taiyuan into a 524
km orbit with an inclination of 42 degrees.

Both will carry a 435/145 (U/V) 20 dBm (100 milliwatt) SSB/CW linear
transponder, a 2m CW 17 dBm (50 mW) telemetry beacon and an AX.25 4.8 kbps
GMSK 20 dBm (100 mW) telemetry downlink.

The two micro-satellites will also carry optical remote sensing missions.
Planned to be 494x499x630 mm dimension regular square shape and
approximately 50 kg mass with three-axis stabilization system.

These frequencies have been coordinated by the IARU Satellite Frequency
Coordination Panel:

CAS-4A

• Linear transponder downlink 145.870 MHz, emission designator 20K0V8WWF,
output power 20 dBm

• Linear transponder uplink 435.220 MHz

• CW telemetry beacon 145.855 MHz, emission designator 100HA1AAN, output
power 17 dBm

• GMSK telemetry 145.835 MHz, emission designator 16K0F1DCN, output power
20 dBm

CAS-4B

• Linear transponder downlink 145.925 MHz, emission designator 20K0V8WWF,
output power 20 dBm

• Linear transponder uplink 435.280 MHz

• CW telemetry beacon 145.910 MHz, emission designator 100HA1AAN, output
power 17 dBm

• GMSK telemetry 145.890 MHz, emission designator 16K0F1DCN, output power
20 dBm

IARU Satellite Frequency Coordination pages http://www.amsat.org.uk/iaru/