nbems for emergency communications
DESCRIPTION
NBEMS for Emergency Communications. Dan N0PI, Scott ARES Asst. EC Bob W0NFE, Scott ARES Asst EC. Accurate, Rapid Communications. 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 - PowerPoint PPT PresentationTRANSCRIPT
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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?