Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to...

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Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December 12, 1961

Transcript of Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to...

Page 1: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Amateur Radio Satellites

Presented to Virginia Tech Amateur Radio Association

ByZach Leffke, KJ4QLP

March 26, 2014

December 12, 1961

Page 2: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Agenda

• The Satellites• Orbits and Stuff• Transponders• Currently Active Satellites

• The Ground Station• Antennas / Polarization• Tracking• Radios and Doppler• An Exchange

• Cool Extras• Useful Links• KickSat and its Sprites• You’re gonna do what…?• You’re gonna do WHAT!?!??!?!.......

Page 3: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

The Satellites – What Are They?

images from: http://www.amsat.org & http://www.nasaspaceflight.com/2011/10/live-delta-ii-launch-npp-satellite-nasa-and-noaa/

Page 4: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

The Satellites – How Do they Get Into Space?

images from: https://directory.eoportal.org/web/eoportal/satellite-missions/a/aerocube-3http://www.nasaspaceflight.com/2011/10/live-delta-ii-launch-npp-satellite-nasa-and-noaa/

Page 5: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

ISS Cubesat DeploymentNov 19 & 20, 2013

http://www.youtube.com/watch?v=RaiQFyybWv8

https://twitter.com/TechEdSat3p

(4 Cubesats)

Page 6: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Minotaur I Launch, Wallops Flight FacilityMission: ORS-3, NASA ELaNa IV

Images From: https://directory.eoportal.org/web/eoportal/satellite-missions/o/ors-3http://www.space.com/23646-ors3-rocket-launch-satellites-description.html

29 Satellites (14 Cubesats)November 20, 2013

Page 7: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

DNEPR Launch, Yasny RussiaMultiple International Missions

Image from: http://ukamsat.files.wordpress.com/2013/11/nader-omer-st2nh-dnepr-launch-2013-11-21.jpg

32 Satellites (27 Cubesats)Nov 21, 2013

Page 8: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

DNEPR Payload Integration

Image from: http://move.lrt.mw.tum.de/?paged=2

Page 9: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

DNEPR Satellite Deployment

Image is a snapshot from an STK Simulation from: http://celestrak.com/events/dnepr.asp

Page 10: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

UniSat-5

Image from: http://move.lrt.mw.tum.de/?paged=2

UniSat-5

Pocket CubesatsEagle-1Eagle-2QBScoutWren

CubeSatsDove-4HUMSAT-DICube-1PUCPSAT-1

PocketPUCP

Page 11: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Orbits – What’s an orbit and why do I care?

images from: http://www.phil-mont.org/AO40/AO40Notes.html

• DOPPLER SHIFT • TRACKING

AMSAT Phase System

Phase 1 No Solar Cells, Short Lived, Tech testbed

Phase 2 Long Life, Solar Cells, LEO

Phase 3 Long Life, Powerful Comms, TLM/Command, Molniya Orbits

Phase 4 Geostationary Orbit

Phase 5 Lunar or Planetary Missions

Page 12: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Satellite TranspondersFM and Linear

images from: http://www.arissat1.org/v3/

Page 13: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Currently Active Amateur Radio Satellites(That you can make a QSO with)

JAS-2 (FO-29)

Uplink: 145.900 – 145.999

Downlink: 435.900 – 435.800

Beacon: 435.7964 CW Beacon

HAMSAT (VO-52)

Uplink: 435.225 – 435.275 LinearInvertingDownlink: 145.925 – 145.875

Beacon: 145.860 CW Beacon

FunCube-1 (AO-73), 300 mW

Uplink: 435.150 – 435.130 LinearInvertingDownlink: 145.950 – 145.970

Beacon: 145.935 1200bps BPSK

Phase-2B (AO-7)

Uplink: 432.125 – 432.175 LinearInvertingDownlink: 145.975 – 145.925

Beacon: 145.970 CW Beacon

Page 14: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Currently Active Amateur Radio Satellites(That you can make a QSO with)

SaudiSat-1c (SO-50)

Uplink: 145.850 FMTone, 67.0 HzDownlink: 436.795

ISS

Packet: 437.550 U/D

APRS: 145.825 U/D

Uplink: 144.490 FM Voice

Downlink: 145.800

Page 15: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Coming Soon in an orbit near you……….

Delfi-N3xt (in orbit)

Uplink: 435.530 – 435.570 LinearInvertingDownlink: 145.880 – 145.920

Beacon/TLM: 145.870/145.930/2405.000 2400bps BPSK,MSK

Triton-1 (in orbit)

Uplink: 435.xxx LinearInvertingDownlink: 145.822/860

Beacon/TLM: 2408.000 1200bps RC-BPSK

Page 16: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Coming Soon to an orbit near you……….

QB50p1 (Launch: June-2014)

Uplink: 435.035 – 435.065, LSB LinearInvertingDownlink: 145.935 – 145.965, USB

Beacon/TLM: 145.815 9600bps BPSK

UKube-1 (Launch: March 30, 2014)

Telemetry: 145.840

S-Band: 2401.0

UKSEDS: 437.425 – 437.525 myPocketQub

FC-Uplink: 435.080 – 435.060 FunCube SubsytemLinear InvertingFC-Downlink: 145.930 – 145.950

FC-Beacon: 145.915 1200bps BPSK

Fox-1a (Launch: Late 2014/Early 2015)

Uplink: 435.160 FM, 500 mW

Downlink: 145.960

Beacon/TLM: Sub-Audible Tones

Page 17: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Agenda

• The Satellites• Orbits and Stuff• Transponders• Currently Active Satellites

• The Ground Station• Antennas / Polarization• Tracking• Radios and Doppler• An Exchange

• Cool Extras• Useful Links• KickSat and its Sprites• You’re gonna do what…?• You’re gonna do WHAT!?!??!?!.......

Page 18: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

That’s all great but how do I play with them?

Short Answer:• You need to be a Ham • You need an antenna• You need to know where to point the antenna• You need a radio• you need to know how to tune the radio• you need to know how to do a proper exchange

THAT’S IT!

The Ground Station

Page 19: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

The Ground Station

Low Noise Amplifier

Antenna

RadioCoax

Page 20: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

The Ground Station

Low Noise Amplifier

TX Antenna

Radio

PowerAmplifier

RX Antenna

Low Noise Amplifier

TX Antenna

RadioDiplexer

PowerAmplifier

RX Antenna

OR

Page 21: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

The Ground Station

70cmAntenna

Radio

Diplexer

2mAntenna

LNA HPA

LNA HPA

2m70 cm

COM

TX / RX Sequencer

PTT

Page 22: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

The Ground StationI’m a Ham, what’s good enough?

images from: http://www.jerryclement.ca/Electronics/Ham-Radio/10282516_i3Q8b/2/1172801879_4Ez3J#!i=1172801879&k=nttPXHk

…sometimes…

Page 23: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Photo Courtesy: images from: http://sv1bsx.50webs.com/antenna-pol/polarization.html <- AWESOME ANIMATION

=Vertical

Horizontal RHCP

LHCP

OR

Antennas – Polarization

Page 24: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Sense Selectable Circular PolarizationOne way to do it

λ 4 , 75Ω

100Ω 100Ω

λ 4 , 95Ω~50Ω

50Ω 50Ω

R. Straw. Antenna Systems for Space Communications. “The ARRL Antenna Handbook”, CT: American Radio Relay League, 2000, 19-9 to 19-13.

Page 25: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Antennas – Omni

images from: Qudrifilar Helix: http://www.nemarc.org/wa3umc/wa3umc.htmMoxon Pair and Turnstile: A Simple Fixed Antenna for VHF/UHF Satellite Work by L.B. Cebik, W4RNL

Page 26: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Antennas – Omni

Lindenblad images from: An EZ-Lindenblad Antenna for 2 Meters by Anthony Monteiro, AA2TX Eggbeater Images from: http://store.fastcommerce.com/m2incshopcom/satpack-1-eb144-eb432-crossboom-ff8081812f4359f1012fb1bbff7f5354-p.html

Page 27: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Antennas - Directional

images from: http://www.arrowantennas.com/arrowii/146-437.htmlhttp://www.elkantennas.com/

ELK Antennas, 2M/440L5(No diplexer required)

Page 28: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Antennas – Directional

Photos From: http://www.qsl.net/sv1bsx/antennapol/polarization.html

RHCP Helical – Polarization fixed by geometry of antenna

Crossed Yagis (70cm and 2m) – Polarization sense can be switched through phasing lines and relays

Page 29: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Antennas - Tracking

70cmCrossed Yagi

Elevator

Rotator

Thrust Bearing

2mCrossed Yagi

Page 30: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Antennas – TrackingThe way I used to do it

Orbitron(More later)

WISP DDE(More later)

GS-232Or

EquivalentG-5500

Radio

RotatorElevator

Antennas and stuff

Az/El

Tuning

Page 31: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Antennas – Tracking SoftwareOrbitron example

Page 32: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Image: Screen Shot of Orbitron 3.71 SoftwareOrbitron is free software created by Sebastian Stoff,

Doppler Shift

http://www.stoff.pl/

Page 33: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Antennas – TrackingTLEs + SGP4 = AZ, EL, Doppler Shift

JAS-2 (FO-29)

1 24278U 96046B 12275.30409075 -.00000010 00000-0 22741-4 0 9456

2 24278 98.5875 2.0859 0351019 114.5644 249.2498 13.52989730796305

TECHSAT 1B (GO-32)

1 25397U 98043D 12275.33976110 -.00000050 00000-0 -38721-5 0 8876

2 25397 98.3751 248.8929 0001446 14.6220 345.5013 14.23294845739128

SEDSAT 1 (SO-33)

1 25509U 98061B 12275.82168182 .00000787 00000-0 14667-3 0 3339

2 25509 31.4309 90.1928 0351449 56.4291 306.9401 14.28826663727910

ISS (ZARYA)

1 25544U 98067A 12276.46198043 .00019552 00000-0 34226-3 0 3966

2 25544 51.6486 308.2918 0018276 123.2706 15.1801 15.50442927794687

PCSAT (NO-44)

1 26931U 01043C 12275.85437241 .00000013 00000-0 37143-4 0 1493

2 26931 67.0526 205.4155 0006266 248.7547 111.2863 14.29836102574495

SAUDISAT 1C (SO-50)

1 27607U 02058C 12275.25660586 .00001210 00000-0 20295-3 0 8783

2 27607 64.5597 332.2084 0076067 227.2995 132.1640 14.72543389525582

CUTE-1 (CO-55)

1 27844U 03031E 12276.01537007 .00000182 00000-0 10376-3 0 4753

2 27844 98.7024 282.8533 0008907 276.8487 83.1704 14.21081066480064

CUBESAT XI-IV (CO-57)

1 27848U 03031J 12275.54499152 .00000271 00000-0 14546-3 0 4248

2 27848 98.7114 281.7720 0008866 282.9418 77.0772 14.20825882479932

http://www.celestrak.com/NORAD/elements/

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T1 – Received Frequency higher than “nominal” frequency

T2 – Received Frequency equals “nominal” frequency

T3 – Received Frequency lower than “nominal” frequency

HIGHER

DEAD ON

LOWER

Photo Courtesy of: http://www.tpub.com/content/et/14090/css/14090_19.htm

Doppler Shift

Page 35: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Photo Courtesy of: http://www.tpub.com/content/et/14090/css/14090_19.htm

Doppler Shift

Page 36: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

A Satellite ExchangeCall Sign, 4 Digit Grid

How to find Grid locator?Grid: http://f6fvy.free.fr/qthLocator/fullScreen.php

HAM A: K4KDJHAM B: K4KDJ, K8YSE EN91HAM A: K8YSE, copy your EN91, please copy my EM97HAM B: K4KDJ, copy your EM97, QSL 73sHAM A: QSL, 73s

Or maybe…………….HAM A: KJ4QLPHAM B: KJ4QLP, K8YSE EN91HAM A: KJ4QLP, copy you EN91, please copy my EM97, the handle here is ZachHAM B: KJ4QLP, copy your EM97, handle here is JohnHAM A: Thanks for the contact John, 73sHAM B: QSL, 73s, and good luck

Page 37: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Agenda

• The Satellites• Orbits and Stuff• Transponders• Currently Active Satellites

• The Ground Station• Antennas / Polarization• Tracking• Radios and Doppler• An Exchange

• Cool Extras• Useful Links• KickSat and its Sprites• You’re gonna do what…?• You’re gonna do WHAT!?!??!?!.......

Page 38: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Useful Links – Articles and Useful InfoThat I’ve found over time

Articles & Useful Info

AMSAT-NA Homepage: http://ww2.amsat.org/ Antennas, Tracking Pedestals

AMSAT-UK HomePage: http://amsat-uk.org/ Lots of Stuff

DK3WN SatBlog: http://www.dk3wn.info/p/?page_id=29535 Active Sats + More

JE9PEL Frequency List: http://www.ne.jp/asahi/hamradio/je9pel/satslist.htm Satellite Frequency/Modes

W6PQL: http://www.w6pql.com/ Hardware

OZ9AEC: http://www.oz9aec.net/ Software

Grid Locator http://f6fvy.free.fr/qthLocator/fullScreen.php Grids

AMSAT Space Symposium:When: October 10 -12, 2014Where: Baltimore-Washington Area, TBDCost: ~$50 - $100 (Symposium & Banquet, not counting hotel)More info: http://ww2.amsat.org/?page_id=1555

Page 39: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Useful Links - Equipment

EQUIPMENT

M2 Antennas: http://www.m2inc.com/ Antennas, Tracking Pedestals

DX Engineering: http://www.dxengineering.com/ Lots of Stuff

Texas Towers: https://www.texastowers.com/ Antennas

Advanced Receiver Research: http://www.advancedreceiver.com/ LNAs

Arrow Antennas: http://www.arrowantennas.com/ Antennas

ELK Antennas: http://www.elkantennas.com/ Antennas

Down East Microwave: http://www.downeastmicrowave.com/ Transverters, LNAs, HPAs

Kuhne Electronics: http://www.kuhne-electronic.de/en/home.html Transverters, LNAs, HPAs

Ettus Research: http://www.ettus.com/ USRP SDRs

Flex Radio: http://www.flex-radio.com/ Flex Radio SDRs

Universal Radio: http://www.universal-radio.com/ TONS of Stuff (rotators)

FunCube Dongle: http://www.funcubedongle.com/ RX Only SDR Dongle

Page 40: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Useful Links - Software

SOFTWARE

Orbitron: http://www.stoff.pl/ Windows Satellite tracking software

Predict: http://www.qsl.net/kd2bd/predict.html Linux Satellite Tracking Software

Gpredict: http://gpredict.oz9aec.net/ Linux Graphical Satellite Tracking Software

Systems (Satellite) Tool Kit: https://www.agi.com/ Orbital Analysis Software

4NEC2: http://www.qsl.net/4nec2/ Antenna Modelling

GNU-Radio: http://gnuradio.org/redmine/projects/gnuradio/wiki

RTL-SDR: http://sdr.osmocom.org/trac/wiki/rtl-sdr

Page 41: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

KickSat and its Sprites

https://www.youtube.com/watch?v=I7xvQgClMf0

Images and Info From: http://amsat-uk.org/tag/kicksat/

Sprite Details:• Count: 104 Sprites• 437.240 MHz• 10mW• MSK/CDMA (50K0G1D)• GNU-Radio G/S SW available• PRNs available

KickSat Details: • 437.505 MHz with 1200 AFSK / AX.25• Output Power: 1W • SpaceX Falcon 9 CRS3 Mission (March 30, 2014)• 325×315 km 51.5 degree inclination• Estimating 6 week lifetime• 2401.2-2436.2 MHz AX.25 over FSK (350KF1D )

Page 42: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

You’re Gonna do what…?The first Phase 4 Satellite

Image and Data from: http://ww2.amsat.org/

Transponder A:• 2.4 GHz Uplink• 10.45 GHz Downlink• 250 kHz Linear inverting

Transponder B:• 2.4 GHz Uplink• 10.45 GHz Downlink• 8 MHz, experimental

Thank you Qatar ARS & AMSAT-DL

Page 43: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

You’re Gonna do WHAT!?!?!?!?!?!?!?.......…The first potential Phase 5 Satellites

1. Communications Challenge:1. Ground demonstration of communications subsystem performance and acceptance for

launch vehicle integration.2. The highest data volume (bit error corrected) transmitted from and uplinked to a CubeSat

within a prescribed period of time from at least 356,700 km (the minimum distance to the moon).

3. The transmission of a prescribed small data set to the farthest distance beyond the moon and back to Earth.

Interesting Note: CANNOT make use of NASA DSN.

2. Propulsion Challenge:1. Ground demonstration of propulsion subsystem performance and acceptance for launch

vehicle integration.2. The first CubeSat to achieve a verifiable lunar orbit.3. Verifiable achievement of at least a prescribed minimum number of lunar orbits.

NASA RFI:• https://www.fbo.gov/index?s=opportunity&mode=form&id=ec040a31b16194f877d1034ccefdda40&tab=core&_cview=0• http://sservi.nasa.gov/articles/centennial-challenges-now-accepting-public-submissions/

NASA’s Centennial Challenge: Small Spacecraft…to the Moon

Page 44: Amateur Radio Satellites - Virginia Tech Amateur Radio ... · Amateur Radio Satellites Presented to Virginia Tech Amateur Radio Association By Zach Leffke, KJ4QLP March 26, 2014 December

Questions ?