building a high-speed · • this forum/presentation slot support the dayton aredn effort. for more...
TRANSCRIPT
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Building a High-Speed AuxComm Data Network
Andre, Hansen, K6AH
Hamvention 2017Greene County Fairgrounds, Xenia, OH
May 19 - 21, 2017
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How many of you have used a microwave high-speed data network?
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I suspect most of you...
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What is AREDN ?
Software • OpenSource development project• Distributed under Free Software Foundation
GNU GPL version 3• Free to Hams (and anyone else for that matter)• Focused on AuxComm/Emcomm• Active user forum• Agile, flexible dev model• Nightly builds available• Entirely a Ham volunteer effort• Developers also implement
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What is AREDN ?
Wireless Mesh • Repurpose WISP routers – replace OEM FW• In the Ham Bands (.9, 2.4, 3.4, & 5.8 GHz)• Part 97 Tech License• Up to 144 Mbps IP Network (802.11n)• Nodes are comprised of:
• Linux computer w/Ethernet I/F• Software Defined Radio (SDR)• Amplifier• Often includes an antenna• $45-$90
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What is AREDN ?
The Team • Conrad KG6JEI Architect, Lead Developer• Joe AE6XE Developer• Darryl K5DLQ Developer• Trevor K7FPV Developer• Randy WU2S Promotion, Webmaster• Andre K6AH Project Manager
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HSMM Networks Today
BBHNFirst real implementation of Ham-based Mesh Uses only Part 15 shared spectrum in 2 GHz bandRelatively inactive today
HAMWANTraditional fixed point-to-point networkRequires significant network skillsUses Part 15 shared spectrum in 2 GHz and 5 GHz bands
AREDNCan be easily deployed on the fly with no network expertiseCommercially robust H/WActively developed and supportedEntirely within the .9, 2, 3, and 5 GHz Ham bands
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99
Primarily Use Ubiquiti airMAX M-series WISP routers• AirGrid• AirRouter• Bullet• NanoBridge• NanoStation• Rocket
Robust Specifications• Power Output: 23 – 28 dBm (200mW – 630mW)• Antenna Gain: 11 – 30 dBi• Temperature: -40° to 176°F• Some configurations capable of 50+ mile range
Also support TP-Link Devices• CPE210 & CPE510
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....
Ham Deployed to Shelter
Fixed or Deployed Relay Node
Fixed Backbone Node
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Design Considerations
BackboneElevationHigh-gain/high powerPoint-to-Point 3 GHzDistribution downward 2 and 5 GHz
Relay NodesHigh-gain upwardsBroad-coverage downCross-band 5 to 2 GHzStrategically placedPath Prediction tools
Deployed NodesMay be Ham-ownedInexpensive <$10012v powerAugment go-kitsTypically 2 GHz (channel -2, 2397 MHz)
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Build Considerations
BackboneMountains, water towers, buildings, towersDish 24-30 dBiRockets (MIMO)Sector distribution downward
Relay NodesHills, tall masts, buildingsRadioMobile to determine location Up: NanoBeam, PowerBeamDown: NanoStations
Deployed NodesNanoBeamWIFI Access Point10-20’ mastKeep it simple
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Backbone Sites
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Using the Vertical Dimension
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Backbone Using High GroundMt. Palomar, 6200’ ASL to Mt. Otay at 48 miles
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2 GHz and 5 GHz DownlinksHigh Ground at Ham’s Mountain Cabin
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Club Repeater Site Towers
BenefitsCheap or freeGets the club involvedNo QRM from ISPs
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Commercial Towers
BenefitsGenerally well-placedOften much tallerMay be ham-owned
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Self Contained Backbone Site Ventura County - Camarillo Hills, CA
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Relay Sites
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Relay Node “In the Wild”Unspecified location
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Small Footprints / Wide CoverageChatsworth Peak - Ventura County, CA
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Small Footprints / Wide CoverageSaddleback Peak - Mission Viejo, CA
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Water Tower Relay SiteSan Bernardino County - Redlands, CA
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Deployed Relay NodeTemporary Shelter Deployment
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Locating Relay SitesUsing RadioMobile to Find Common Ground
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Network Services
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Network ServicesConnect the disaster area to the outside world
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Exercise Your Skills
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Exercise Your Skills
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Presence at Hamvention
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Visit the MVMA Booth, #1001
Tutorials15-minute talks on the hour and 1:1 Q&A on the half hour
SME AdviceLearn from the expertsSee demosTalk with members of the team:
• Randy, WU2S• Andre, K6AH• MVMA
If you’re LocalConnect with members of the Miami Valley Mesh AllianceFire up your AREDN node
• 2.4 GHz• Channel -2 (2397 MHz)• 10 MHz Bandwidth
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Thanks to MVMA for Hosting AREDN
Provided: • Booth Space• Local AREDN Infrastructure• This Forum/Presentation Slot
Support the Dayton AREDN effort
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For More Info
• WWW.AREDN.ORG• QST June 2017, ARRL• TAPR/ARRL DCC Proceedings 2015• TAPR/ARRL DCC Proceedings 2016• Search YouTube, HamRadio360, HamRadioNow, HamNation videos
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Contact Info
Andre Hansen, K6AHwww.aredn.org/forum