06:40 UTC FM data transmission, RS-22 seems to be spin very fast (lost of stabilisation?)

rapid changes of field strength

18:58 UTC nothing heard

21:20 UTC nothing heard from RS-22

20:05 UTC no signals heard

18:44 UTC no CW beacon, only a short FM data transmission (608 bit frame length)

RS-22 seems to tumbling fast. There is an strong noise dip every 3 seconds followed by a second one after 1 second.to

Jim, AC4AV: I have not heard CW telemetry from RS-22 for over a week or so.
A couple days ago, I did hear some interesting audio, but caught the last few seconds before LOS.

audio spectrum

RS-22 is sending short bursts of telemetry every 5 seconds on 435.352 MHz (FM)
This morning I could hear heavy downlink traffic. This data transmission system is called DOKA.
The DOKA modulation is PM with Manchester-encoded data on sidebands.
It uses 4800Bd data, one block contains 256 frames with sync wsequence and frame counter. The length of a RS-22 frame is 608 bit (76 byte).

DOKA telemetry block in a hexdump view

22:47 UTC

UBS  138   IBS  20    USUN 0     ISUN 0     ITXA 0     ITXB 0     
TTXA 114   TTXB 112   TNAP 112   TCTR 114   TSBA 115   
TSBB 139   MODB 129   MODC 6     MTX  131   MRX  32    

OnBoard Voltage:                       13.8 V
OnBoard Current:                       200 mA
Charge Voltage from Solar Batterie:    0 V
Charge current from solar battery      0 mA
D.C. current of the 435 MHz TX:        0 mA
D.C. current of the 145 MHz TX:        0 mA
Temperature of the 435 MHz TX:         14 °C
Temperature of the 145 MHz TX:         12 °C

Temperature of the Navigation Unit:    12 °C
Temperature of the Controller:         14 °C
Temperature of the inner case:         15
Temperature of the outer case:         39
Housekeeping info:                     129
Housekeeping info:                     6
Housekeeping info:                     131
Housekeeping info:                     32

20:34 UTC

UBS  136   IBS  20    USUN 0     ISUN 0     ITXA 0     ITXB 0     
TTXA 117   TTXB 115   TNAP 115   TCTR 116   TSBA 115   
TSBB 104   MODB 129   MODC 6     MTX  35    MRX  34    

OnBoard Voltage:                       13.6 V
OnBoard Current:                       200 mA
Charge Voltage from Solar Batterie:    0 V
Charge current from solar battery      0 mA
D.C. current of the 435 MHz TX:        0 mA
D.C. current of the 145 MHz TX:        0 mA
Temperature of the 435 MHz TX:         17 °C
Temperature of the 145 MHz TX:         15 °C

Temperature of the Navigation Unit:    15 °C
Temperature of the Controller:         16 °C
Temperature of the inner case:         15
Temperature of the outer case:         4
Housekeeping info:                     129
Housekeeping info:                     6
Housekeeping info:                     35
Housekeeping info:                     34

21:36 UTC

very stable signal