CAS-4A/4B

Chinese satellites #8: CAS-4A/4B


CAS-4A/4B
OVS-1A/1B, ZHUHAI-1 01/02
Launch Date: 15 June 2017
Launch Site: Taiyuan China




Two satellites from the Chinese Amateur Satellite Group (CAMSAT) are
expected to launch from Taiyuan Satellite Launch Center into a 524 km
orbit with an inclination of 42 degrees. The two satellites, CAS-4A and
CAS-4B, will be 50 kg mass with 3-axis stabilization carrying optical
remote sensing missions. The amateur radio payloads will be similar to
the XW-2 series of satellites with Mode U/v linear transponders with power
output of 100mW, 100mW AX.25 4800baud GMSK telemetry, and 50mW CW beacons.
Frequencies for these two satellites have not yet been coordinated.

CAS-4A
SSB  Linear transponder downlink 145.870MHz, emission designator 20K0V8WWF, output power 20dBm
SSB  Linear transponder uplink 435.220MHz
CW   telemetry beacon 145.855MHz, emission designator 100HA1AAN, output power 17dBm
GMSK telemetry 145.835MHz, emission designator 16K0F1DCN, output power 20dBm

CAS-4B
SSB  Linear transponder downlink 145.925MHz, emission designator 20K0V8WWF, output power 20dBm
SSB  Linear transponder uplink 435.280MHz
CW   telemetry beacon 145.910MHz, emission designator 100HA1AAN, output power 17dBm
GMSK telemetry 145.890MHz, emission designator 16K0F1DCN, output power 20dBm

                      ID     Up       Down     4k8GMSK  CW       CallSign
CAS-4A (ZHUHAI-1 01)  42761  435.220  145.870  145.835  145.855  BJ1SK
CAS-4B (ZHUHAI-1 02 ) 42759  435.280  145.925  145.890  145.910  BJ1SL


  

http://dl.dropbox.com/s/48ui0a9c5rk454g/70617ca6.wav
http://dl.dropbox.com/s/5tmys2f7jbs185j/70901c4a.wav
http://dl.dropbox.com/s/cw9z5m6ii0l797h/70901c4b.wav


01:09-01:21 UTC, 17 Jun 2017, Ele 63 NW-S-SE
Received by JE9PEL using HS_SoundModem016b, FSK G3RUH 4800bd

1:Fm BJ1SL To CQ <UI R Pid=F0 Len=128> [10:15:04R] [NN] [---+---]
1:Fm BJ1SL To CQ <UI R Pid=F0 Len=128> [10:15:09R] [AA] [--+----]
1:Fm BJ1SL To CQ <UI R Pid=F0 Len=128> [10:15:10R] [NN] [+------]
1:Fm BJ1SL To CQ <UI R Pid=F0 Len=128> [10:15:12R] [AN] [-------]
1:Fm BJ1SK To CQ <UI R Pid=F0 Len=128> [10:15:17R] [AN] [-------]
1:Fm BJ1SK To CQ <UI R Pid=F0 Len=128> [10:15:18R] [AA] [+--+---]
1:Fm BJ1SK To CQ <UI R Pid=F0 Len=128> [10:15:18R] [AA] [+--+---]
1:Fm BJ1SK To CQ <UI R Pid=F0 Len=128> [10:15:20R] [AA] [---+---]


[Reference]

http://www.amsat.org/?p=5723
http://www.chinaspaceflight.com
http://www.dropbox.com/s/q2bmc72u8mhry1e/cas-4a4b.pdf
http://amsat-uk.org/2016/12/07/cas-4a-cas-4b-transponder-sats/
http://amsat-uk.org/2017/03/13/cas-4a-cas-4b-transponder-sats-2/
http://amsat-uk.org/2017/06/15/cas-4a-and-cas-4b-launched/


[Supplement]

HXMT        = 42758U 17034A
ZHUHAI-1 02 = 42759U 17034B
NUSAT-3C    = 42760U 17034C
ZHUHAI-1 01 = 42761U 17034D
CZ-4B R/B   = 42762U 17034E


NuSat-3 (C)EcoruSpace
Earth remote sensing satellite of Argentina



HXMT (C)ChinaSpace-Astronomy

The Hard X-ray Modulation Telescope (HXMT), or Insight, satellite has
been launched succesefully at 11 a.m. on 15 June 2017 from Jiuquan, China.
Li Tipei, the CAS academician who first proposed the satellite in the
early 1990s, said Chinese scientists could have made many great scientific
discoveries if it had been launched within 10 years of first being mooted.
Even so, he is confident the satellite can make new findings. "Our satell_
ite has advantages in detecting transient phenomena and X-ray explosions
of celestial bodies. And its functions have expanded, as its developers
added more detectors so it can cover a broader range of energy," Li said.