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needs help for module ham in satellite.



Dear Sir;

Thailand Amateur Radio Satellites Corporate or TAMSAT GROUP needs help from 
all ham interested in ham radio satellites.  We offer ourselves to produce a 
module to report the status of satellite of Space Affairs Bureau. (seen at 
web: http://www.space.mict.go.th)

This modules works in basic packet radio system (same as DOVE DO-17 
satellite).  There would be a module to record sound and send back that has 
a cycle of work in 1 minute as followed.

Time 00  20 second : send telemetry about the status of the satellite in 
packet radio AFSK 1200 bps AX.25.

Time 21  40 second : record the received sound 20 second.

Time 41  60 second : send the recorded sound back 20 second.

and for all the process, using frequency at 145.825 MHz in FM

Our group would like to support about the circuit in the module together 
with the knowledge in real production. Therefore this module would be 
installed in the satellite of  to travel in Space Affairs Bureau.

Please advice us for sample detail of circuit diagram , PCB , sample program 
IC PIC packet radio for  telemetry input ASCII 9600 bps to output 1200 bps 
AFSK AX.25 , other detail and reply back to

Mr. Tanan Rangseeprom HS1JAN  e-mail: hs1jan@thamsat.org

Mr. Chavalit Rasaminil E20KEW e-mail: e20kew@tamsat.org


Best Regards,

TAMSAT GROUP
www.tamsat.org
http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/
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