Download - NBEMS for Emergency Communications
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NBEMS for Emergency Communications
Dan N0PI, Scott ARES Asst. ECBob W0NFE, Scott ARES Asst EC
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Accurate, RapidCommunications
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Agenda
• Why Digital ECOMS• What is NBEMS• What NBEMS can and cannot do for you• Components of a NBEMS system• How to set up a NBEMS system• How to use NBEMS• Practice time
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Why Digital ECOMS
• Think back to your last public service event, drill, or deployment.
• You probably passed a lot of traffic best suited for voice communications but...– What if you had been asked to pass• Roster of evacuees• Required prescription medications• Directions to a disaster scene
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Why Digital ECOMS
• The needs of our Served Agencies have changed.
• They still need voice communications but...– There's an increasing need for data
communications.– We need to be able to provide more than just
voice communications from a ham with an HT.
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Agenda
• Why Digital ECOMS• What is NBEMS• What NBEMS can and cannot do for you• Components of a NBEMS system• How to set up a NBEMS system• How to use NBEMS• Practice time
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What is NBEMS• Narrow Band Emergency Messaging System• Consists of four programs:– Fldigi – Fast Light Digital modem application– Flmsg – easily send ICS forms and Radiogram– Flwrap – Wrap a file with a checksum– Flarq – Fast Light Automatic Repeat Request
• Can download from www.w1hkj.com– Runs on Windows, Linux, and Mac.– Released under GNU Public License, so it
is completely FREE.
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NBEMS Homepage
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NBEMS Download Page
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NBEMS philosophy
• Keep it cheap.• Keep it simple.• Use Open Source software.• Don't depend upon infrastructure.• Make it fun to use between drills and
disasters.• Any computer, any radio.
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Using NBEMS in your net.
• Auxiliary method to handle formal traffic.– Voice used for basic check-in’s etc– Traffic passed by digital – Same or different channel
• Much faster than Voice.• Number / letter sequences are 100% accurate.• All message are save to hard drive.
– Bulletins broadcast to all station• All Digital net– Mix of keyboard to keyboard and formal
traffic sent via forms.
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Agenda
• Why Digital ECOMS• What is NBEMS• What NBEMS can and cannot do for you• Components of a NBEMS system• How to set up you NBEMS system• How to Use NBEMS• Practice time
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What NBEMS can do for you
• Fast accurate method to provide– Keyboard to Keyboard communications– Send, save, and print standard ARRL, ICS, Red Cross,
and generic forms (new forms added regularly)• Typical ARRL radiogram takes ~40 seconds to send• Data is verified via checksum• Can broadcast messages, one to many• Supports unattended reception of messages
– Not encrypted, but general scanning public will hear noise.
– Will work when voice is marginal.
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What NBEMS will not do for you
• It is not a store and forward system like e-mail– Each station in the system must have an operator
• Receive message will be stored on local hard drive.
– No built in connection to the internet• It will not move large amounts of data– 2 K bytes, or 1 type written page is a practical limit.
• Over this size and likelihood of an error increases, causing a checksum failure. Have to resend message.
• Flarq could handle larger files, up to 8K or more, butrequires practice and more training to use.
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Agenda
• Why Digital ECOMS• What is NBEMS• What NBEMS can and cannot do for you• Components of a NBEMS system• How to set up you NBEMS system• How to Use NBEMS• Practice time
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Components of NBEMS system
Fldigi
FlmsgFlwrap Flarq
Sound Card Interface
Radio and Antenna
Software on Computer
Hardware connection Computer to Radio
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Components of NBEMS systemBottom Up - Radio
Any voice capable radio will work
FM, SSB, even AM if you want.
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Components of NBEMS systemBottom Up – Radio Interface
• Signal Link USB – Just needs USB Port• Rig Blaster – USB and audio ports• March 2011 QST, Page 34 - Audio Ports Only• Anything hardwired is better, but– Audio coupling (Caveman) does work, and can be
used.
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Components of NBEMS systemBottom Up - Fldigi
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Components of NBEMS systemBottom Up - Fldigi
• Provides the basic digital communications for the NBEMS system
• Supports keyboard to keyboard communication like many sound card programs.
• Has special hooks to connect to the other components.
• Supports many modes of communications• We will focus on two, MT63-2K and Olivia 16/500
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Components of NBEMS systemBottom Up - Flmsg
• Rapidly and Accurately formats and transmits information.
• 8 Formats– ICS Forms– HICS– MARS– IARU– Radiogram– Red Cross– Generic
– Blank
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Agenda
• Why Digital ECOMS• What is NBEMS• What NBEMS can and cannot do for you• Components of a NBEMS system• How to set up a NBEMS system• How to use NBEMS• Practice time
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Basic Fldigi Set-up
• Operating Mode– MT63 – 2000– Olivia 16/500
• If you have a decent FM voice channel start with MT63-2000
• When MT63-2000 fails, switch to Olivia 16/500
• When Olivia fails, no communications.
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Configuration Options
• Basic Set-up– Operator– Waterfall– Modems– Rig Control – Sound Card– IDs
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Operator
• Callsign• Tactical Callsign• Location
As determined by the situation.
Always SAVE!
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Waterfall
• Check the three ‘cursor’ options
• Check “Always show audio frequencies”
Always SAVE!
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Modems - MT63
• Check interleave and tone
• All stations in the net need to have the top two button the same for this mode to work.
Always SAVE!
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Sound Card
• Select the correct audio port for your computer.
• Volume control on computer, recording controls– Select Mic option – Adjust for a ‘speckled’
waterfall– Speaker – adjust for
transmit signalAlways SAVE!
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Rig Control
• If using hardwire PTT– Check Use Serial Port– Select COM port – Configure RTS or DTS– Initialize to test
operation
Initialize and Save after changing
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IDs
• Reed-Solomon ID– DO NOT select
“Reception disables detector”
– Pre-Signal Tone may vary depending on specific delay time in your equipment
Always SAVE!
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Text Capture• Under configuration ,
Misc, NBEMS.• Make sure “Enable,”
“Open Message Folder” and “Open with flmsg” is selected.
• Verify flmsg file location
Always SAVE!
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Flmsg• Rapidly and Accurately
formats and transmits information.
• 8 Formats– ICS Forms– HICS– MARS– Radiogram– Red Cross– Generic – DnD– Blank
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Flmsg set-up
• Personal Data• Date/Time format• Files format• Radiogram
Words per line (5) Serial Number
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Agenda
• Why Digital ECOMS• What is NBEMS• What NBEMS can and cannot do for you• Components of a NBEMS system• How to set up a NBEMS system• How to use NBEMS• Practice time
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Fldigi
Verify communications withkeyboard to keyboard
Ctrl-T to TransmitCtrl-R to Receive
OrUse the T/R
button
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Flmsg• Rapidly and Accurately
formats and transmits information.
• 8 Formats– ICS Forms– HICS– MARS– Radiogram– Red Cross– Generic (e-mail)– DnD– Blank
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ICS 213 Form
Date
Time
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ARRL Radiogram
Calculate Check
Today
Pick ARRL Message
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WRAP your message• Sending your message
is easy as selecting:– File– Wrap– AutoSend
• The message immediately moves to FLDIGI and is transmitted
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Received Traffic • Received messages are
stored within the NBEMS.files folder
• WRAP files are associated with flmsg for viewing
• Messages sorted by date/time stamp
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IC 213 HTML Delivery
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ARRL Radiogram Delivery
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Agenda
• Why Digital ECOMS• What is NBEMS• What NBEMS can and cannot do for you• Components of a NBEMS system• How to use a NBEMS• How to set up a NBEMS system• Practice time
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Things to Watch
• Tx & Rx IDs• Op Mode• Squelch - off
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Sound Card Calibration
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Additional Information
• This presentation is available at www.ScottARES.org from the Member Resources page.
• Questions?