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2 nd Design Update Presentation March 17, 2009. Overview Ground Segment Space Segment...

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2 nd Design Update Presentation March 17, 2009
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Page 1: 2 nd Design Update Presentation March 17, 2009. Overview Ground Segment Space Segment OBCTNCTransceiverAntenna PCTNCTransceiverAntenna Rx Tx Rx Tx Rx.

2nd Design Update Presentation

March 17, 2009

Page 2: 2 nd Design Update Presentation March 17, 2009. Overview Ground Segment Space Segment OBCTNCTransceiverAntenna PCTNCTransceiverAntenna Rx Tx Rx Tx Rx.

Overview

Ground Segment

Space Segment

OBC TNC Transceiver Antenna

PC TNC Transceiver Antenna

Rx

Tx

Rx

Tx

Rx

Tx

Rx

Tx

Page 3: 2 nd Design Update Presentation March 17, 2009. Overview Ground Segment Space Segment OBCTNCTransceiverAntenna PCTNCTransceiverAntenna Rx Tx Rx Tx Rx.

Narrowed Scope

• Need to connect Linuxstamp to TNC via RJ-11

• Current software not adequate upgrading to newer Program –ROC

• More channels needed in interface between the TNC and Transceiver

Space Segment

OBC TNC Transceiver AntennaRx

Tx

Rx

Tx

Page 4: 2 nd Design Update Presentation March 17, 2009. Overview Ground Segment Space Segment OBCTNCTransceiverAntenna PCTNCTransceiverAntenna Rx Tx Rx Tx Rx.

Status of Project

• Ground station able to receive and transmit data from computer

Page 5: 2 nd Design Update Presentation March 17, 2009. Overview Ground Segment Space Segment OBCTNCTransceiverAntenna PCTNCTransceiverAntenna Rx Tx Rx Tx Rx.

Status of Project

• Transceiver disassembly

• Pico Packet tested with the ground station computer

Page 6: 2 nd Design Update Presentation March 17, 2009. Overview Ground Segment Space Segment OBCTNCTransceiverAntenna PCTNCTransceiverAntenna Rx Tx Rx Tx Rx.

• Status of Components/systems

Received– TNC : PicoPacket

On Order– Ground station software

To Be Acquired– Cables

Page 7: 2 nd Design Update Presentation March 17, 2009. Overview Ground Segment Space Segment OBCTNCTransceiverAntenna PCTNCTransceiverAntenna Rx Tx Rx Tx Rx.

Modeling and AnalysisCurrent Usage (at 6V)

0mA

50mA

100mA

150mA

200mA

250mA

300mA

350mA

Transmitting Receiving Idle

Cu

rren

t TNC

Trans.

Total

Page 8: 2 nd Design Update Presentation March 17, 2009. Overview Ground Segment Space Segment OBCTNCTransceiverAntenna PCTNCTransceiverAntenna Rx Tx Rx Tx Rx.

Modeling and AnalysisVolume Usage

Communications components (19%)

Remaining volume (89%)

Page 9: 2 nd Design Update Presentation March 17, 2009. Overview Ground Segment Space Segment OBCTNCTransceiverAntenna PCTNCTransceiverAntenna Rx Tx Rx Tx Rx.

Prototypes

• Groundstation Prototype using handheld testing Antenna

• Space segment transceiver is the current prototype for point to point communication

Page 10: 2 nd Design Update Presentation March 17, 2009. Overview Ground Segment Space Segment OBCTNCTransceiverAntenna PCTNCTransceiverAntenna Rx Tx Rx Tx Rx.

Future Tasks

• Mounting components into Cubesat

• Further Groundstation testing using spectrum analyzer

• Writing AX.25 software for Cubesat

• Cubesat antenna construction

• Testing range, power, durability

Page 11: 2 nd Design Update Presentation March 17, 2009. Overview Ground Segment Space Segment OBCTNCTransceiverAntenna PCTNCTransceiverAntenna Rx Tx Rx Tx Rx.

BudgetCash

Item Cost Change since Feb.

Antenna assembly and deployment mechanism

$150.00

Yaesu VX-3R $239.00

PicoPacket TNC $320.00

Wires and other materials $36.00 +$16.00

Presentation Supplies $150.00

Subtotal $895.00 +$16

Page 12: 2 nd Design Update Presentation March 17, 2009. Overview Ground Segment Space Segment OBCTNCTransceiverAntenna PCTNCTransceiverAntenna Rx Tx Rx Tx Rx.

Week of

Sept

15

Sept

22

Sept

29

Oct

6

Oct

13

Oct

20

Nov

3

Nov

10

Nov

24

Dec

15

Jan

5

Jan

19

Jan

26

Feb

2

Feb

9

Feb

16

Feb

23

Mar

2

Mar

9

Ma

r

16

Mar

23

Mar

30

Apr

6

Apr

13

Apr

20

Apr

27

May

4

May

11

May

18

May

25

Tasks                                        

Project Proposal                                                            

Contract Proposal                                                            

Ground Station

Assembly & testing                                                            

Basic radio operator's

qualification                                                            

Design Specification

review                                                            

Software development

begins                                                            

1st design update

presentation                                                            

Antenna design and

modeling                                                            

Preliminary design

review                                                            

Antenna fabrication                                                            

2nd design update

presentation                                                            

1st communication

link test                                                            

Critical Design review                                                           

Final design report                                                            

Page 13: 2 nd Design Update Presentation March 17, 2009. Overview Ground Segment Space Segment OBCTNCTransceiverAntenna PCTNCTransceiverAntenna Rx Tx Rx Tx Rx.

Questions?


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