Portable Voice and Digital Emergency Communications
Contents
1. a 1 2 wave 27 5 antenna that will easily fit into the 36 case The Smith Victor 10 foot light stand uses plastic connecting parts which are not conductive Therefore only the top section will conduct and it will provide the 1 2 wave 19 6 ground plane counterpoise required for UHF VHF mobile antennas Photographic Light Stand The Smith Victor 10 foot aluminum light stand extends to 10 feet high and weighs only 3 pounds It collapses to 32 and easily fits into a 36 light stand case The top section has a diameter of 5 8 which is suitable for most mounting clamps The case is wide enough to accommodate the 901 dipole mount while permanently mounted to the top section of the light stand 2 Construction Mount a UHF VHF dual band transceiver 13 volt 23 amp switching power supply sound card sound card interface AC Battery switch and a 12 volt 7 amp hour sealed gel cell battery on a 16 x 11 x 3 4 pine board The battery power supply and sound card interface are mounted with a Velcro strap so they can be removed easily Place the unit into a 6 inch briefcase or tool case The briefcase unit weighs about 22 pounds To operate a digital mode a PC Mac or Linux computer will be required The case can be lightened by 5 7 pounds by removing the battery Be sure to construct the Anderson power poles exactly like the photo Red on the Right with conductors on top Plastic pipe clamps serve as handles on each end of the2. be centered on the waterfall at 1 500 Hz 2 Press the TUNE button a 1 000 Hz tone will be transmitted 3 Press it again after 15 seconds to release it 11b TO SEND A FORMATED MESSAGE 1 Open FLMSG 2 Select the message format you want to use such as Radiogram or ICS 213 3 Enter the appropriate information into the message including Base 64 and MT63 2KL at the bottom of the window 4a If a sound card interface is not used place the radio s microphone near the computer s speaker Press the PTT switch on the microphone then click Auto Send 4b If a sound card interface is used Press the PTT switch on the microphone then click Auto Send 4c If a sound card interface and rig control is used click Auto Send 11c TO SEND AN UNFORMATED MESSAGE 1a If a sound card interface is not used place the radio s microphone near the computer s speaker Press the PTT switch on the microphone then click on the CQ button green button or the TTX To transmit a message that has been typed in press the PTT switch on the microphone then click on the TTX button 1b If a sound card interface is used click on the CQ button green button or the TTX To transmit a message that has been typed in click on the TTX button 1c If a sound card interface and rig control is used click on the CQ button green button or the TTX button FLDI User Manual http www wthkj com FlidigiHelp 3 22 operating_page html
3. be obtained by watching the instructional videos Open FLDIGI Under Op Mode select the operating mode MT63 2000L or MT63 1000L PSK can also be used for other applications Adjust your sound card master audio volume and sound recording volume to about 75 You can change this later if necessary according to signal reports from others In the frequency display click on the last digit and set it to zero Then press enter Enter the frequency in KHz on the keyboard Then press enter or Select a frequency from the drop down box located after the words Enter Xcvr Freq lf a sound card interface is not used place the computer s microphone near the radio s speaker Open the Squelch button on the bottom right corner of the screen no color seen in box Turn the rig squelch off Set the volume of the radio or the computer sound card microphone input level until the black diamond on the bottom part of the FLDIGI window changes color to green If the diamond turns red the level is too high Adjust it again on an incoming signal If the rear data jack is used for audio adjust only the computer sound card microphone input level because the radio volume control will not have any effect When there is a solid line in the waterfall point the cursor to it and click so that a message can be received 10 Click on the AFC button to track drifting signals 11a TO SENDA TEST TONE 1 Set the signal markers to
4. pine board A Power Sonic PS 1270 12 volt 7 ah 5 7 pounds sealed gel cell battery with F1 terminals was used Discharging a battery below 50 of its charge will probably damage the battery Charging 50 of the same battery will require a charge for half the time To Charger To Battery Battery To Radio Power Consumption Transceiver Mode Transceiver Current Watts 50 Battery Runtime 7ah 2 3 5 ah Receive 0 27 amps 3 24 12 95 hours 5 Watts Output 2 15 amps 25 8 1 63 hours 10 Watts Output 2 86 amps 34 32 1 23 hours 20 Watts Output 4 01 amps 48 12 0 875 hours 59 minutes 50 Watts Output 7 42 amps 89 04 0 47 hours 28 minutes Narrow Band Emergency Message System EBEMS MT 63 Operating Instructions Narrow Band Emergency Messaging Software NBEMS is a system that allows amateur radio operators to send and receive data using almost any computer Windows Mac and Linux and any analog radio without requiring a dedicated digital infrastructure like packet D Star etc NBEMS works on VHF UHF FM and on HF NBEMS software was developed by Dave Freese W1HKJ Stelios Bounanos MOGLD Leigh Klotz WASZNU Stephane Fillod F8CFE John Douyere VK2ETA Joe Veldhuis N8FQ Chris Sylvain KB3CS and Gary Robinson WB8ROL The three most common modes used are MT 63 2000L long interleave Digital Mode VHF UHF FM MT 63 1000L long interleave Digital Mode VHF UHF FM MT 63 1000L long interleave Mode HF USB NBEMS Insta
5. NBEMS Macros 1 Open Flidigi 2 On the right above the waterfall next to the blue blank button is a 1 Left click this number until it changes to 3 or 4 whichever bank you want to use 3 On the left side there is a green blank macro button right click a button and the macro editor will pop up 4 Copy the line from below Paste this line into macro text box DE lt MYCALL gt ALL STATIONS THIS IS A MESSAGE FROM Northport New York MT63 2KL 1500HZz DE lt MYCALL gt K lt RX gt 5 Enter a button name below into the macro button label box such as TX 30s 6 Click Apply and Close 7 Choose File Macros Save and Save Test it the first time by left clicking it without a radio connected NBEMS Instructional Videos http www youtube com watch v 1wZ7ulA Qs http www youtube com watch v SWZ2vKWSIE amp list PLBF8CFBAS CC6C2CC http www youtube com watch v psP489NOkg0 http www youtube com watch v 9Pw9XWnwukc http www nyc arecs org narrow html Echolink Computer EchoLink makes it possible for amateur radio stations to connect to a repeater anywhere in the world via the internet The technology uses streaming audio Echolink was developed by Jonathan Taylor K1RFD in early 2002 Connections to be made between Echolink connected stations or from computer to station or from an iPhone to a station or repeater The first step is to register your callsign at www echolink org to be authent
6. Portable Voice and Digital Emergency Communications System Dr John A Allocca WB2LUA 12 16 14 www WB2LUA com aw ay ww Light Stand CRM Mount 2 70cm Antenna Introduction This system is designed to provide voice and NBEMS MT 63 digital communications of emergency data transfer as well as other modes such as RT TY SSTV CW PSK31 WSPR WINMOR and EchoLink It can be used on AC or battery power An toggle switch between the battery power supply and radio is required because the radio will draw current even when switched off causing the battery to drain if AC power is not used Anderson power pole connectors are used for all DC connections The radio can be switched between AC and battery power using the double pole toggle switch The system can be removed from the case and placed on a table for operation A great advantage of NBEMS is that it can be used VHF UHF HF simplex or with any VHF UHF FM repeater without requiring an infrastructure like packet D Star and Winlink Information is also contained herein for Echolink which is currently a popular voice mode that requires an infrastructure at the repeater but not necessarily a radio This system can easily be used for Echolink as well as NBEMS Sound Card Interface Several sound card interfaces were tested including the Rigblaster Plus Rigblaster Nomic Signalink USB and Rigblaster Plug and Play The Rigblaster Plus was not chosen because it required ext
7. e serial port from the list fldigi will have searched for available ports or go to Start Control Panel System Hardware Device Manager Ports Com and LPT to find the com port used Then specify whether the h w uses RTS or DTR and whether a or voltage is required to toggle PTT on Then press the Initialize button Set the rig to a frequency that is not used during testing Save 9 Click Configure Misc NBEMS check enable open message folder open with FLMSG open in browser and press FLMSG button and select the executable file Save 10 Click Configure Modems MT 63 tab check 8 bit extended character UTF 8 and Long Receive Integration Save 11 Open FLMSG 12 Configure Date and time Select the format you want to use Save 13 Configure Personal Data This should already be in the program If not enter it Save 14 Configure Files Formatting Check open folder when exporting Callsign Data time and Serial Save 15 From the Form menu select Radiogram 16 On the bottom of the window select Base 64 and MT63 2L from the drop down lists NBEMS Operation A hard wired sound card interface can be used Alternately placing the computer s microphone near the radio s speaker to receive and holding the radio s microphone next to the computer speaker while pressing the microphone s PTT switch and pressing PTT on the computer to transmit Below are some basic instructions More advanced instructions can
8. ernal power The Rigblaster Nomic was not chosen because it required manually switching the radio between the Rigblaster Nomic and the microphone The Signalink USB was not chosen because it didn t work with this radio and computer and Tigertronics tech support was not available at the time The Rigblaster Plug and Play sound card interface was selected for this project The interface draws power from the computer s USB port and uses a standard 6 pin mini DIN connection to the radios rear DATA port to control the PTT and for audio input and outputs leaving the radio microphone input for the microphone It also doesn t require different jumper configurations It literally took less than 2 minutes to install the drivers and setup the Rigblaster Plug and Play 6 pin mini DIN to USB to Computer RIGblaster Plug and Play Radio s Data jack USB for audio input PTT and carrier detect adapter Blue mini plug to available for other computer mic input jacks Green mini plug to computer headphone output Computer speaker output CW jack for keying to a solid state jack to amplified speakers radio s straight key jack or headphones i RIG control for CAT or CIl V control to a TTL level rig control connector Green power indicates USB is connected to computer Yellow CW flashes with CW keying Red PTT lights when transmit is activated by software UHF VHF Antenna The Diamond AZ507RSP Dual Band Mobile Antenna was selected because it is
9. icated Then download the PC software from www echolink org Install the software in your computer or iPhone A list of repeaters will appear on the computer or iPhone screen Software for the Mac is available from http echomac sourceforge net W1AW ARRL is also present on the list of active EchoLink stations However W1AW is listed as BUSY since this connection is used for the conference server Therefore DO NOT connect to W1AW To listen you must connect to W1AWBDCT node 501433 The Apple Airport series router does not support port triggering It will need to be configured manually to forward to a Mac s IP address Step 1 On the mac go to System Preferences Network Advanced TCP IP and find the IPv4 address On the PC go to Control Panel Network Connections Double click on Network Connections Click on Support or Details and copy the IP Address NOTE each computer used will have a different IPv4 address Consequently if computers are changed the IPv4 address must be change in the router Only one IPv4 address can be used in the router The iPhone appears to work with any configuration Step 2 Open Airport Utility Step 3 Go to the network tab Select Port Mapping click the sign to add a port mapping and name it EchoLink Step 4 Add Public UDP ports 5198 5199 Step 5 Add Private UDP Ports 5198 5199 Step 6 Add Public TCP Ports 5200 Step 7 Add Private TCP Ports 5200 Step 8 Change the Private IP Add
10. llation Download FLDIGI and FLMGS from http www w1hkj com download html for Windows Linux or MAC 1 If using a Sound Card Interface hook up all cables and test the microphone on FM 2 Connect the RS232 connection from the rig to the computer 3 Install Fldigi and Flmsg software 4 Open Fldigi 5 Click on Configure Operator and enter your personal information or as much as you want to Save 6 Run Sound Card Calibration CheckSR exe and write down the PPM values Skip this step if using a mac 6a Sound Card Calibration 1 Download and save CheckSR exe It provides the capability of analyzing your sound card offsets and gives you the corrections in parts per million ppm http Awww pa sitrep com checksr CheckSR exe 2 Open FLDIGI go to configure sound card audio devices tab and make sure you have the sound card you use for your interface properly selected from the capture and playback drop down choices 3 Under the audio settings tab you should see a sample rate drop down box for capture and playback Under each drop down box select the sample rate that has native listed after it and write down this figure Click save config then click save Close FLDIGI 4 Open CheckSR From the drop down boxes for sound card settings Input and Output choose the sound card you are using Next select the sample rate from the drop down box in CheckSR for the sample rate that FLDIGI showed as Native then click start 5 Le
11. ress to the IPv4 address found in Step 1 Base Station Internet Wireless Network Disks Router Mode DHCP and NAT DHCP Range 10 0 1 2 to 10 0 1 200 Description Echolink DHCP Reservations Description IP Address Public UDP Ports 5198 5199 Public TCP Ports 5200 Private IP Address Qa aK Private UDP Ports 5198 5199 Port Settings Description Echolink Private TCP Ports 5200 Cancel Enable Access Control ance Network Options Cancel Update Parts List as of 12 12 14 Kenwood TM V71A UHF VHF Transceiver 365 Rigblaster Plug and Play Sound Card Interface 99 Samlex SEC 1223 23 amp switching power supply 115 Power Sonic PS 1270 12 volt 7 amp hour sealed acid battery 24 Power Sonic PSC 12800A 12 volt 0 8 amps automatic batter charger 36 Powerwerx 30 Amp Unassembled Red Black Anderson Powerpoles PP30 10 Set of 10 10 Powewerx 14 25 ft Red Black Zip Cord 17 Smith Victor RS10 10 ft Aluminum Light Stand Folds to 32 in Footprint 47 in Weight 3 0 Ibs 45 Davis amp Sanford DATC Tribag 36 Padded Tripod Case 20 Diamond C211 SO239 mount with RG8X extension cable for 16 5 feet total 50 Diamond CRM Right Angle Bracket with U Bolts 17 Diamond AZ507RSP Dualband w Spring Mobile 1 2 wave Antenna 27 5 47 Cable Xperts CXPO8XC50 50 FT RG8X CABLE with PL259 plugs 39 6 tool case 20 from Home Depot Reliance Best Power Peg Plastic Stakes 12 inch ww
12. t the application run for about 5 minutes You will notice that the numbers will progressively stabilize After about 5 minutes click stop then write down the resulting figures on input and output for the measurements in Hz and PPM Keep this record 6 Open FLDIGI go to configure defaults sound card and click on the audio settings tab Enter the PPM figures for RX ppm CheckSR ppm Input figure and TX ppm CheckSR ppm Output figure If you had a figure that resulted in a minus from CheckSR enter the PPM setting with the minus symbol followed directly by the figure with no space Then click save config then close some sound card softwares have a programmable filter on the mic line input that can characterize the digital signal as noise and squash it after 2 seconds Turned off this filter 7 Click on Configure Audio Devices and select the sound card input and output fields and enter the PPM values from the Sound Card Calibration Enter the PPM figures for RX ppm CheckSR ppm Input figure and TX ppm CheckSR ppm Output figure If you had a figure that resulted in a minus from CheckSR enter the PPM setting with the minus symbol followed directly by the figure with no space Save 8 Click on Rig Rig Hardware PTT and set up Rig Control The simplest rig control is to control the push to talk Set this type of control on the first configuration tab for rig control Select this operation by checking the Use serial port PTT Select th
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