In attendance: Glenn, Dennis, Andrew, Richard, Larry, James, Jamey, Bart
We decided on the following course for the antennas:
GPS Antenna: 1.57542 GHz. Buy two commercial patch antennas. Use one if nothing else. But if possible, buy a power splitter and attampt to combine the two antennas. Andrew still wants a third in the nose but we'll see about that.
ATV Antenna: We moved the ATV antenna up to 1.277GHz @ 1W using a http://www.northcountryradio.com/ kit. We'll try and build a slot antenna for it.
Telemtry Antenna: We're going to try and build a slot antenna for the channel 1 of the 802.11b band - that's 2.412MHz center frequency with a bandwidth of 16MHz. Note that this puts channel one well within the 2.40 - 2.45GHz hamm band!
- 2.4GHz = 12.4cm = 4.9 in
- 1.5GHz = 19.9cm = 7.8 in
- 1.2GHz = 24.9cm = 9.8 in
Antennas To Do:
- Glenn is finding out about the diameter and construction of slot antennas.
- Glenn is also going to look into ground antennas.
- Dennis is going to do NOTHING but work on the launch clamps ;)
- AndrewGreenberg will get commercial GPS patch antennas and possibly mixers or power splitters to use more than one antenna.
Well, The Flight Computer is looking up!
- We have the Flight Hardware (with the exception of the 802.11b Etehrnet Cards, but we have a substitute)
- The Hardware runs!
- We still need to figure out how to securely mount this thing into the Avionics Bay
- has written the CAN Muxer. It just needs to be debugged.
- CanMuxer: he'll liase with on details. will re-write the communications protocol routines for
- will write the "State Machine"
- will use the IDE port into the Flash Disk to load up the linux stuff we need onto the Flight Computer.
- BartMassey has set up the CVS repository for the team to use. He's out of town now but e-mail if you want write access, or visit http://bart.cs.pdx.edu/avionics/ to browse the repository.