Delfi-C3 - Radio Amateur section

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Radio Amateurs

Radio Amateur section

Delfi-C3 will have a downlink in the amateur satellite segment of the VHF amateur radio frequency band. Telemetry decoding software will be made available to participating amateur radio operators and universities which allows them to decode and display real time telemetry. Furthermore, the software allows for a data upload to the central Delfi-C3 ground station via the Internet for data processing. The Delfi-C3 team would like to invite all interested radio amateurs to receive, decode and forward telemetry data to the Delfi-C3 ground station.

Delfi-C3 includes a mode UV linear transponder. The satellite will be in telemetry only mode for approximately the first three months of the mission, after which it is switched to transponder mode.

Frequencies:

Primary telemetry downlink: 145.870 MHz 1200 Baud BPSK AX.25 400mW
Backup telemetry downlink: 145.930 MHz 1200 Baud BPSK AX.25 400mW
Linear transponder passband downlink: 145.880 - 145.920 MHz (inverting) 400mW PEP
Linear transponder passband uplink: 435.570 - 435.530 MHz
Transponder mode beacon: 145.870 MHz CW (10dB below transponder PEP)

Telemetry decoding software for radio amateurs worldwide is available. We would like to ask you to use this software to help us decode and gather telemetry from Delfi-C3. Go to the download page .

Newsflash

Delfi-C3 on Klokhuis

Delfi-C3 was featured on an episode of the Dutch children's program called Klokhuis (meaning 'apple core'). For more info and the episode itself please check our photo weblog.

In the meantime Delfi-C3 is approaching it's 1-year anniversary. The spacecraft is still performing well and returning science data through our own groundstation and the invaluable amateur radio data collection network.

Delfi-C3 back in science mode

On January 29th, after having been in orbit for 9 months and 1 day, Delfi-C3 has been put back in science mode. This decision was reached because of problems with the on-board transponder, which unfortunately prohibits proper operation of the transponder.

Happy 2009

On behalf of the Delfi-C3 / DO-64 team we would like to wish everybody a very happy 2009!

To start off the new year we have just released a new version of our telemetry decoding software that has significant improvements in decoding performance. For more information go the mission status page or the decoding software section for downloads.