communication & amateur radio satellite



D-Star ONE Phoenix (DP1GOS) halfduplex repeater & beacon frequencies:

Uplink: 437,325MHz / Downlink: 435,525MHz RF-Power: 800mW

D-Star One is a 3U CubeSat which is equipped with four identical radio modules with D-Star capabilities, all being operated in a half-duplex mode.

Two modules are used for telemetry and telecomand and operate on identical frequencies. Telemetry can be received on 435,7 MHz, the format will be disclosed after launch. Both modules receive, and both modules answer. To prevent information loss, they answer after each other. So each telemetry frame is repeated twice. Both modules have a D-Star Voice-Message Beacon, but it is only activated for one module during LEOP. The Beacon is repeated once in a minute.

The other two modules are dedicated to the radio amateur community. Both modules have the same frequencies, so one of them will be powered down as long as the other one shows no degradation effects. The downlink frequency is 435.525 MHz and the uplink frequency is 437.325 MHz. Also here half-duplex mode is applied. The modules are configured to work as D-Star repeaters, so they retranslate the received d-star frames on the downlink frequency. They also have a D-Star voice beacon signal.

All modules are operated in a power save mode. This means that they are in idle for 40 seconds and then in receive mode for 20 seconds. Once a signal has been received, the modules switch to receive mode for five minutes. So it might be necessary to „ping“ the satellite a couple of times until an answer is received.

Welcome to the official
D-STAR ONE project website

D-Star ONE is the first private german CubeSat and the first D-Star communication spacecraft wordwide.

The D-Star ONE PHOENIX has been successfilly launched in the target orbit

We waiting now for the TLE update on the celestrak.com

Launch date: 01.02.2018 Norad classification: 18014

Our teams were actively working together during the Christmas and New Year holidays, and we are happy to announce that today we have completed the assembly and final checks of the D-Star ONE (Phoenix) satellite.

We called this project Phoenix because since ancient times the phoenix has been a symbol of rebirth and renewal. On November 28, 2017 our satellite burned in the dense layers of the atmosphere, so that in 44 days it could rise from the ashes! It was an extremely challenging task to assemble a fully identical flight spare from the parts we had in such short period of time and to maintain the same quality level.

The D-Star ONE project is highly important for the whole GOS and iSky teams. We also express our deep gratitude to our main launch provider, ECM Space Technologies GmbH. The Soyuz-2/Fregat launch system will launch from the Vostochny launch site on February 1, 2018 and bring the D-Star ONE (Phoenix) in the space!

D-Star ONE D-Star ONE D-Star ONE

Orbit parameters and TLE:

The target orbit for D-Star ONE spacecraft is a circular sun synchronous orbit with an altitude of approx. 585km

The D-Star ONE launch in November 28, 2017 is failed due to the launch vehicle issues.

The next launch opportunity for D-Star ONE (Phoenix) spacecraft is scheduled for the 1.February 2018.

Preliminary TLE:

1 43188U 18014J 18035.84113639 -.00000059 00000-0 00000+0 0 9994

2 43188 97.7296 305.9462 0015119 203.1224 249.4519 14.96378730 525

This website is under development. Please check back soon for more content!

Please use this e-Mail for requests: info@d-star.one

Our D-Star ONE team is happy to support you.