michael l. umbricht w9gyr - blogging at brown university · 2017. 11. 16. · june 22, 2017 amateur...
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June 22, 2017
Amateur Radio Emergency Data NetworkProvidence, Rhode Island
Michael L. Umbricht W9GYRBrown University Physics
Woonasquatucket River, Mar. 30-31, 2010
←W9GYR
Valley Street, downstream from W9GYR
AREDN 2.4 and 3.4 GHz channels
5 cm amateur band5.650-5.925 GHz
AREDN 5.8 GHz channels
Orthogonal Frequency-Division Multiplexing(5, 10, or 20 MHz bandwidth)
Linksys WRT54G hardware
Ubiquiti Networks hardware
← KD1HA
W9GYR
W1OP Toby St.
Michael L. Umbricht W9GYR
Contact me:
● twitter: @W9GYR● google: +MichaelUmbricht● email: mikeu@brown.edu● www: http://fornax.umbricht.org
AREDN Rhode Island:
RIMN@email.com
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 1
June 22, 2017
Amateur Radio Emergency Data NetworkProvidence, Rhode Island
Michael L. Umbricht W9GYRBrown University Physics
Amateur Radio Emergency Data Nework
http://aredn.org
Brown University Physics
https://www.brown.edu/academics/physics/
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 2
http://aredn.org
AREDN website.
http://aredn.org
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 3
Mossel Bay Mesh Network
https://mosselbaymesh.co.za/news/
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 4
Woonasquatucket River, Mar. 30-31, 2010
←W9GYR
Valley Street, downstream from W9GYR
The March 30-31, 2010 high water mark was 5.35 feet above the 1% Annual Exceedance level (a “once in a century” flood) at Manton Ave.
Top: Woonasquatucket River behind Atlantic Mills showing mesh node location.
Credit: Woonasquatucket River Watershed Council
http://www.woonasquatucket.org/galleryOne.php?galleryID=1
Bottom: Valley Street, downstream from Atlantic Mills.
Credit: USGS, FEMA
https://pubs.usgs.gov/sir/2013/5191/pdf/sir2013-5191.pdf
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 5
New York City Marathon 2016
http://www.aredn.org/sites/default/files/sites/default/files/pictures/user12/New%20York%20City%20Marathon%202016%20AREDN%20Mesh%20Network%20Status%20-%2020161126.pdf
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 6
Example mesh topology.
Credit: Warren County Radio Club W2WCR
http://w2wcr.org/projects/broadband-hamnet-hsmm-mesh
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 7
Part 15 WiFi limits
Consumer WiFi point-to-multipoint Part 15 rules.
Credit: AIR802
http://www.air802.com/fcc-rules-and-regulations.html
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 8
13 cm amateur band2.390-2.450 GHz
Overlapping channels for 2.4 GHz WiFi.
Credit: Michael Gauthier / Wikipedia
https://en.wikipedia.org/wiki/List_of_WLAN_channels
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 9
AREDN 2.4 and 3.4 GHz channels
Shared and non-shared channels at 2.4 and 3.4 GHz.
Credit: AREDN
http://www.aredn.org/sites/all/themes/danland/images/slideshows/IMG_2-3_Channels-v5.jpg
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 10
5 cm amateur band5.650-5.925 GHz
Allocations and WiFi channels near 5.8 GHz.
Credit: National Telecommunications and Information Administration
https://www.ntia.doc.gov/osmhome/allochrt.pdf
https://www.ntia.doc.gov/report/2013/evaluation-5350-5470-mhz-and-5850-5925-mhz-bands
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 11
AREDN 5.8 GHz channels
Shared and non-shared channels at 5.8 GHz.
Credit: AREDN
http://www.aredn.org/sites/all/themes/danland/images/slideshows/IMG_2-3_Channels-v5.jpg
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 12
Orthogonal Frequency-Division Multiplexing(5, 10, or 20 MHz bandwidth)
Example modulation scheme for 802.11 WiFi.
Credit: Keysight Technologies
http://rfmw.em.keysight.com/wireless/helpfiles/89600b/webhelp/subsystems/wlan-ofdm/Content/ofdm_basicprinciplesoverview.htm
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 13
Martin (Weakley County) TN mesh.
Credit: Roger Elmore KJ4AJP
http://www.utm.edu/staff/relmore/Mesh_Services.gif
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 14
Linksys WRT54G hardware
Linsys WRT54G with omni and directional antennas. (Firmware not maintained and has software bugs; don't use.)
Credit: Michael Umbricht W9GYR
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 15
Broadband-Hamnet website firmware download. (Not maintained; don't use.)
http://www.broadband-hamnet.org/
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 16
OpenWrt command line interface to mesh node screenshot.
https://openwrt.org/
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 17
Broadband-Hamnet firmware web interface screenshot.
http://www.broadband-hamnet.org/
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 18
Ubiquiti Networks hardware
An omni and point to point AREDN 5GHz mesh site feeding a D-STAR repeater.
Credit: Michael Brown KG9DW
http://www.thefarmonline.com/2016/05/ham-radio-mesh-networks-fun-and.html
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 19
ARDEN website firmware download.
http://www.aredn.org/content/software
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 20
AREDN firmware web interface screenshot.
http://www.aredn.org/content/software
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 21
Estimated coverage for an omnidirectional antenna at W9GYR Atlantic Mills, Manton Ave. Olneyville and location of KD1HA on Atwells Ave. Providence. Distance is 2.2 km.
SPLAT! is an RF Signal Propagation, Loss, And Terrain analysis tool for the electromagnetic spectrum between 20 MHz and 20 GHz.
http://www.qsl.net/kd2bd/splat.html
Credit: Google Earth
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 22
← KD1HA
View from Atlantic Mills site looking towards downtown Providence and KD1HA node on Atwells Ave.
Credit: Michael Umbricht W9GYR
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 23
View from Atwells Ave. looking towards Olneyville and Neutaconkanut Hill.
Credit: Denis Couture KD1HA
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 24
W9GYR
W1OP Toby St.
Closeup view from Atwells Ave. looking towards Olneyville and Neutaconkanut Hill showing Atlantic Mills and Toby St. hi-rise.
Credit: Denis Couture KD1HA
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 25
Line of sight and elevation profile for W9GYR to KD1HA link. Path is 1 degree up; antenna has 5 degree down tilt.
Credit: Google Earth, DM Antenna Technoogies
http://www.ic72.com/pdf_file/d/122899.pdf
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 26
https://airlink.ubnt.com
Link simulator for W9GYR to KD1HA link. Path is 1 degree up; antenna has 5 degree down tilt.
Credit: Google Earth, Ubiquiti Networks, Inc
https://airlink.ubnt.com
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 27
Signal-to-noise ratio for link.
AREDN firmware screenshot
http://www.aredn.org/content/software
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 28
Current status of wireless nodes with links from Providence Communications to Atwells to Atlantic Mills.
Red: active wireless nodesYellow: VPN tunnel only nodesGreen: planned sitesBlue: potential sites
Credit: Google Earth
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 29
Topology map of wireless links.
olsr-topology-view.pl screenshot
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 30
Providence and vicinity nodes.
Red: active wireless nodesYellow: VPN tunnel only nodesGreen: planned sitesBlue: potential sites
Credit: Google Earth
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 31
Topology map of VPN and DtD links.
olsr-topology-view.pl screenshot
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 32
Current active nodes statewide.
Red: active wireless nodesYellow: VPN tunnel only nodesGreen: planned sitesBlue: potential sites
Credit: Google Earth
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 33
The next hop to Providence Radio Association W1OP.
Red: active wireless nodesYellow: VPN tunnel only nodesGreen: planned sitesBlue: potential sites
Credit: Google Earth
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 34
Potential expansion.
Red: active wireless nodesYellow: VPN tunnel only nodesGreen: planned sitesBlue: potential sites
Credit: Google Earth
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 35
http://www.aredn.org/forums/rhode-island
AREDN Rhode Island discussion forum.
http://www.aredn.org/forums/rhode-island
AREDN Rhode Island June 22, 2017
Mike Umbricht W9GYR 36
Michael L. Umbricht W9GYR
Contact me:
● twitter: @W9GYR● google: +MichaelUmbricht● email: mikeu@brown.edu● www: http://fornax.umbricht.org
AREDN Rhode Island:
RIMN@email.com
Michael L. UmbrichtDepartment of PhysicsBox 1843Brown UniversityProvidence, RI 02912
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