Frequencies for the CAS-4A and CAS-4B Linear Transponder satellites have been announced by IARU - launch was planned for March 31, 2017. Story at https://amsat-uk.org/2017/03/13/cas-4a-cas-4b-transponder-sats-2/
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/