Communication information

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Telemetry Information

Rate: 9600bps

Downlink frequency: 437.390 MHz (UHF)

Modulation: GMSK

Protocol: AX25

CW Beacon Information

Satellite Name: Ten-Koh

Callsign: JG6YKY

Ten-Koh’s telemetry data format is as follows.



Ten-Koh’s sample beacon wave is as follows.


Ten-Koh’s beacon decoding software is available in the following link:

Click here!

Instruction to use beacon decoding software:

  1. Download correct version of beacon decoding software.
  2. Unzip or extract file to a new folder.
  3. Double click on the executable file to run the software. For example, for Windows-64bit version, double click on Tenkoh_Beacon_Decoder.exe.
  4. Enter the housekeeping data section only in the “Insert beacon string and click in DECODE” field. For example, in Windows-64bit version:

Sample received beacon data:



Enter 907BE267667188004067C67602 in “Insert beacon string and click in DECODE” field:


5.Click “DECODE” to get detail beacon information:


6.The beacon information is also exported to a text file in the same folder with Tenkoh_Beacon_Decoder.exe.



If you receive the beacon data from Ten-Koh, please let us know via e-mail at:

Please include the following in your email:

  1. Call-sign
  2. Name
  3. Beacon data received (example: JG6YKY:907BE267667188004067C67602)
  4. Date and time
  5. Ground station location

If you would like to receive a QSL card from us, please include the following additional information in addition to the above:

  1. Mailing address

We will ONLY use your information for our records and to mail the QSL card. Thank you for receiving Ten-Koh signal.



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