9feb2012pe,s,pa,r,j,k,m patrick: all working with magn gps antenna and new squidbees, works new gps antenna, no good. small gps antenna brick "should be kept in a plastic box"???? are there specs for the gain?
amanda: steve pink says ham/call already there. max: ---new fins, foam stage easier to build, bolts to lip think about logginess of this fin nice float weight try in pool, if good, max to direct fab, ellen/ha in our shop
---airport: springfield no access; rutland*** peter, stephanie: discussion with jason stauth (thayer) who does solar panel control circuits. figure out: --what type of battery (now low voltage, so have to stack in series, and can store too much energy. find one closer to voltage needed (9V to be used) --how many panels needed --then return to jason --figure out "period" leo, 89deg, 89 min, 18 orbits per day, plan for every 4th orbit; longest passover 6 minutes, typically 2-3 minutes data collection power use should instr/bus/dnt comms, wihtout strong ratio for ground dump. (***max to find sband cube example) squidbee at 9V is 250mA for xbee; for dnt probably 500mA. abstract discussion re charge controller circuit choices. will return to detailed discussion given above. --diodes, circuits details meantime layout for existing dave panel store power 6 hours, 3 hrs of which is sunlit;
CODE: --data files for tom to play with (patrick to thomas) --realtime (C) vs archived (matlab) (patrick/tim for realtime) archive: --overlap jon's river with matlab plotter --dnt/xbee network: these are not a mesh network. we can have a tree network: each radio can specify who it communicates with. can listen/talk to several, but can't change who it talks with. 5:30s on wednesdays. 750 bytes per sec? total intake of receiver;
you start losing data. storage and dump |