SunSpace was established in 2000 as a spin-off from Stellenbosch University following the successful launch of SUNSAT by NASA with a Delta-II launch vehicle. During the past decade SunSpace has developed and delivered numerous satellite components, subsystems and two flight model satellite, now operational in space. This blog documents the mission of Sumbandila (funded by the DST), launched on a Soyuz-2.1b on 17 September 2009. SunSpace places a high premium on a strong partnership with the South African Government for supplying the ongoing satellite needs of our government.

19 October 2009

SA AMSAT payload tested successfully

During the first morning pass of Sun 18 Oct we have activated the voice beacon (435.350 MHz) at 07:48 UTC and switched on the bent-pipe transponder (uplink 145.880 MHz, downlink 435.350 MHz) during the first evening pass at 19:13 UTC, with several Radio Amateurs then operating through the satellite transponder.

You can listen to a recording made during the evening pass here.

Below is a graphic depicting the location of the six Radio Amateurs that partook in the first test.

Feedback from some of the Hams that participated in the first test:
  • Congratulations to all part of the success of the first Sumbandilasat comms. Well done! (Eddie Leighton, ZS6BNE)
  • When I was on freq the Sat's audio was clear with a S7 signal which sounds just like a local repeater. Congrats to the TEAM ! (Andre van Deventer, ZS2BK)
  • The down link was pretty strong - It's at least 10dB stronger than AO51/SO50 given the same setup. Good news indeed. Suggest operation from Quadrifilar Omni with a low noise preamp on 70cm might be quite achievable (Allan Saul, ZS1LS)

5 comments:

Rich said...

Congratulations!
Rich, N8UX

Anonymous said...

what is the tone being used to use the onboard repeater? I havent seen any listing on that yet. I know they are testing right now and dont think the system is open to use yet but just wondering if they have a assigned tone yet.

VU2SWG said...

Congratulations! Can you please publish the CTCSS Tones

Gumiƛ said...

Congratulations.
Can You more details on the work of a satellite?

Luciano said...

Hello! Congratulations! Please inform CTCSS tone for transponder, and inform if Sumbandila, pass active above Brazil. My name is Luciano, callsign PY2BBS and interested to test this new satellite.

Current Keplerian Elements

Last Update: 1 Febr 2010
Element set: 404

Sumbandila
1 35870U 09049F   10032.48635300  .00000433  00000-0  21444-4 0  4040
2 35870 097.3525 084.8560 0011505 166.1189 300.7196 15.22856092 20818