Introduction to Wireless Broadband Networking Montgomery Amateur - - PowerPoint PPT Presentation

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Introduction to Wireless Broadband Networking Montgomery Amateur - - PowerPoint PPT Presentation

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Introduction to Wireless Broadband Networking Montgomery Amateur Radio Club Rockville, Maryland David Bern, W2LNX W2LNX @ arrl . net Montgomery Amateur Radio Club 1 of 42 January 21, 2015 Introduction brief MARC D-STAR system overview

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Introduction to Wireless Broadband Networking

Montgomery Amateur Radio Club Rockville, Maryland David Bern, W2LNX W2LNX @ arrl . net

Montgomery Amateur Radio Club 1 of 42 January 21, 2015

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Introduction

  • brief MARC D-STAR system overview
  • D-STAR hotspot and Winlink email demos
  • Ubiquiti airMAX wireless networking equipment
  • current high-speed wireless digital networks
  • project ideas
  • MARC wireless network project proposal
  • conclusions

Montgomery Amateur Radio Club 2 of 42 January 21, 2015

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MARC D-STAR repeater

Montgomery Amateur Radio Club 3 of 42 January 21, 2015

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MARC D-STAR hotspot

Montgomery Amateur Radio Club 4 of 42 January 21, 2015

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D-STAR hotspot demonstration

Montgomery Amateur Radio Club 5 of 42 January 21, 2015

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D-STAR hotspot demonstration is replaced by Ubiquiti airMAX wireless networking equipment

Montgomery Amateur Radio Club 6 of 42 January 21, 2015

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D-STAR hotspot demonstration Ham radio network applications

❖ talk on REF025B reflector via KV3B D-STAR gateway

also

❖ send Winlink email with spreadsheet attachment ❖ browse Montgomery County WebEOC Website

Montgomery Amateur Radio Club 7 of 42 January 21, 2015

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Simplified network model application layer

. . .

network layer link layer physical layer

  • user applications and services – my interest

Montgomery Amateur Radio Club 8 of 42 January 21, 2015

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Ubiquiti wireless networking products Based on IEEE 802.11 protocols – uses OFDM and TDMA airMAX Ubiquiti ISM amateur

M900 900 MHz 902-928 902-928 902-928 M2 2.4 GHz 2402-2462 2400-2500 2390-2450 M3 3 GHz (1) 3370-3730 3300-3500 (3) M5 5 GHz 5725-5850 5725-5875 (2) 5650-5925 (1) for export from USA – purchased from Streakwave Wireless (2) U-NII: 5150-5350, 5470-5825 MHz (3) ARRL band plan

❖ browse http://www.ubnt.com/airmax

Montgomery Amateur Radio Club 9 of 42 January 21, 2015

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Ubiquiti wireless networking products

3.5 and 5.8 GHz RocketDish antenna 3 GHz 120 degree sector antenna

Montgomery Amateur Radio Club 10 of 42 January 21, 2015

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Ubiquiti wireless networking products

NanoBridge M3 CPE network relay station

Montgomery Amateur Radio Club 11 of 42 January 21, 2015

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Simplified network model application layer

. . .

network layer link layer physical layer

  • microwave backbone network – Keith, KB3TCB, Dick, WN3R

and friends

  • end user network VHF/UHF “last-mile” connection – my

interest

Montgomery Amateur Radio Club 12 of 42 January 21, 2015

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Ubiquiti demonstration network

K1ZZ and W2LNX at the ARRL Centennial Convention

Montgomery Amateur Radio Club 13 of 42 January 21, 2015

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Ubiquiti demonstration network

GXP1105 IP phone and NanoStation M3

Montgomery Amateur Radio Club 14 of 42 January 21, 2015

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Ubiquiti demonstration network two link wireless network

  • default Network Mode of airMAX router is Bridge
  • no latency

Montgomery Amateur Radio Club 15 of 42 January 21, 2015

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Ubiquiti demonstration network Discovering the network

Ubiquiti Discovery program

  • works on a different subnet

Montgomery Amateur Radio Club 16 of 42 January 21, 2015

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Ubiquiti demonstration network Access point

airOS MAIN screen

Montgomery Amateur Radio Club 17 of 42 January 21, 2015

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Ubiquiti demonstration network Station – client

airOS MAIN screen

Montgomery Amateur Radio Club 18 of 42 January 21, 2015

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Ubiquiti demonstration network Discovering the network

airOS Tools

Montgomery Amateur Radio Club 19 of 42 January 21, 2015

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Ubiquiti demonstration network Discovering the network

airOS Site Survey tool

discovered:

  • access points
  • frequencies

Montgomery Amateur Radio Club 20 of 42 January 21, 2015

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Ubiquiti demonstration network Discovering the network

airOS Discovery tool

discovered:

  • Device Name – broadcast station identification
  • IP Address – broadcast IP address

Montgomery Amateur Radio Club 21 of 42 January 21, 2015

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Ubiquiti demonstration network spectrum analyzer

airOS airView tool

Montgomery Amateur Radio Club 22 of 42 January 21, 2015

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MARC repeater west site to W4BRM test 16 miles on 5 GHz

airLink simulation Website

Montgomery Amateur Radio Club 23 of 42 January 21, 2015

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High-Speed amateur wireless networks today

❖ browse Amateur Radio computer compatible Networks

http://www.remoteamateur.com/

❖ Mid-Atlantic Radio Amateur IP Network MAIPN

Montgomery Amateur Radio Club 24 of 42 January 21, 2015

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High-Speed amateur wireless networks today Mid-Atlantic area:

  • CPIN – in service
  • extending to Damascus
  • BRATS – in service
  • MARC – in planning stages
  • ARCS – in planning stages
  • ther USA:
  • Broadband-Hamnet – Austin, TX area – in service
  • HamWAN – Seattle, WA area – in service
  • BCWARN – British Columbia area – in service

Montgomery Amateur Radio Club 25 of 42 January 21, 2015

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High-Speed amateur wireless networks today Central Pennsylvania IP Network (CPIN)

network map

Montgomery Amateur Radio Club 26 of 42 January 21, 2015

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High-Speed amateur wireless networks today Central Pennsylvania IP Network

  • Ubiquiti equipment
  • primarily on 5 GHz
  • 13 High-profile relay sites
  • 157 Miles of network backbone
  • 20 IP Cameras
  • Asterisk IP telephone system
  • and more

Gary Blacksmith, WA3CPO

Montgomery Amateur Radio Club 27 of 42 January 21, 2015

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Building local community area networks Connecting the end-user to the high-speed backbone network

  • software defined radios
  • HackRF One
  • bladeRF
  • new radios – products being developed
  • UDRX-440 – NW Digital Radio
  • CS7000 – Connect Systems, Inc.
  • Whitebox radio – “HT of the future” – Chris Testa,

KD2BMH

Montgomery Amateur Radio Club 28 of 42 January 21, 2015

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Building local community area networks Connecting the end-user to the high-speed backbone network

  • NW Digital Radio – Bryan Hoyer, K7UDR and John Hays,

K7VE – soon

UDRX-440 narrow band data radio with FSK, GMSK modems

Montgomery Amateur Radio Club 29 of 42 January 21, 2015

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Building local community area networks Connecting the end-user to the high-speed backbone network

  • Connect Systems, Inc. – Jerry Wanger, KK6LFS – soon

mock-up of CS7000 narrow band data radio with GMSK, 4FSK modems

Montgomery Amateur Radio Club 30 of 42 January 21, 2015

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Building local community area networks Connecting the end-user to the high-speed backbone network

  • Chris Testa, KD2BMH – soon

Bravo broadband data radio

Montgomery Amateur Radio Club 31 of 42 January 21, 2015

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Building local community area networks Connecting the end-user to the high-speed backbone network

  • VHF/UHF FM radios with 9600 bps data port
  • audio tap before FM modulator and after the FM

demodulator

  • using 9600 bps TNC – KPC-9612 plus
  • using D-STAR node adapters as 4800 or 9600 bps GMSK

modems

  • Moen Star*Board node adapter – project
  • DVRPTR_V1 board – open source – project
  • building inexpensive 9600 bps GMSK modem – project
  • Doodle Labs – 420 MHz broadband – regulatory change

Montgomery Amateur Radio Club 32 of 42 January 21, 2015

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Building local community area networks Connecting the end-user to the high-speed backbone network

  • multiple end users can share a backbone connection
  • mesh networking – Broadband-Hamnet™
  • using analog FM repeaters for narrow-band data – under

utilized

  • what is the bandwidth and linearity of a FM

repeater? – project

  • VHF/UHF FM radios
  • 1200 bps AX.25 TNCs
  • fldigi – has callable modem library – robust modes

– project

Montgomery Amateur Radio Club 33 of 42 January 21, 2015

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Building local community area networks Connecting the end-user to the high-speed backbone network

  • some amateur radio applications – old is new
  • analog and digital repeater linking
  • remote receiver – ham license not required!
  • APRS – extend the network
  • Winlink – extend the network
  • remote station operation
  • VOIP – extend the D-STAR, Echolink, IRLP, Allstar

networks

  • CW over IP – CWCom program and AD9X serial adapter
  • serial over IP – Lantronix serial to Ethernet

adapter

Montgomery Amateur Radio Club 34 of 42 January 21, 2015

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Building local community area networks Connecting the end-user to the high-speed backbone network

  • some Internet applications
  • VOIP – Asterisk
  • Web camera
  • Web and file transfer services
  • email services
  • text messaging
  • multicast services
  • remote software defined receivers
  • Web SDR – University of Twente, Enschede, NL

Montgomery Amateur Radio Club 35 of 42 January 21, 2015

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Building an amateur radio wireless network Issues:

  • authentication – is not encryption – project
  • uses standard Internet protocols and tools
  • ham applications that authenticate user identity
  • LOTW – ARRL is digital certificate authority
  • D-STAR – validates license
  • Winlink – validates license
  • Echolink – validates license and authenticates

user identity

  • ham volunteer examiners authenticate identity
  • can be digital certificate authorities – project
  • required on open ham radio frequencies
  • imperative on shared frequencies

Montgomery Amateur Radio Club 36 of 42 January 21, 2015

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Building an amateur radio wireless network Issues:

  • regulatory
  • Part 97 rules
  • use secure Part 15 microwave links
  • connecting to the Internet
  • authenticate users is required
  • non-commercial sites – whitelist
  • network topology and frequencies – what works best
  • fixed point-to-point network
  • ad hoc mesh networking
  • using Ipv6 instead of IPv4

Montgomery Amateur Radio Club 37 of 42 January 21, 2015

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Building an amateur radio wireless network Some requirements:

  • provide FM repeater-like experience – party line
  • ease of use – familiar user interface
  • ease of network monitoring and administration
  • transparent authentication
  • use of open source software
  • use of COTS equipment
  • use of proven Internet protocols
  • no single point of failure – distributed servers

Montgomery Amateur Radio Club 38 of 42 January 21, 2015

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Conclusions This is ham radio at its finest!

  • platform to build and experiment with networking
  • attract next generation of hams
  • high speed networks are being built today
  • network is built one link at a time
  • take advantage of COTS equipment
  • take advantage of proven Internet protocols
  • this is fun!

Montgomery Amateur Radio Club 39 of 42 January 21, 2015

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Conclusions This is...

Montgomery Amateur Radio Club 40 of 42 January 21, 2015

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References and resources The DCC 2014 conference paper, presentation visuals and video of presentation are at http://tapr.org/pub_dcc33.html http://www.youtube.com/watch?v=qCWf7NhyH4o More information about amateur broadband networks is at Website of Keith, KB3TCB http://www.remoteamateur.com

Montgomery Amateur Radio Club 41 of 42 January 21, 2015

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Questions

?

W2LNX @ arrl . net

Montgomery Amateur Radio Club 42 of 42 January 21, 2015