Echolink_Presentation_N2LEN_0119 by pengtt

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									HAM RADIO UNIVERSITY 2003
Presentation by: Len Signoretti N2LEN
January 19, 2003
  Seminar Objectives
Understanding of       Hardware
VoIP (Voice over IP)   Requirements
Relativity to
Amateur Radio
                       Using Echolink
Uses of Echolink
System
Other alternatives     Resources
using VoIP
Technology
                Voice over IP
•Encryption and Decryption to and from Analog and Digital
Audio - Codec
•Ability to transfer audio over IP to specified IP Address
•Seamless transition of codec – AD/DA
•Vox or COS/COR
The Future of Amateur
        Radio
 CW – Morse Code
AM – Amplitude Modulation
FM – Frequency Modulation
SSB – Single Side Band
Digital – Packet, Pactor, Amtor, RTTY, PSK31, …
VoIP – Voice over IP
Alternatives to Echolink
                  Echolink
Friendly Windows GUI
Usable from Computer OR Radio
Easy configuration for RF Link or Computer user
No Special hardware required



 VOX PTT
 No AGC
 Not able to Connect and Disconnect to and from
 Multiple stations ( RF Configuration )
                  IRLP
COS / COR Activated PTT
Indicator LED’s for visual indicators
May be more stable the other OS’s


Having to learn new OS
Have to have 24/7 connection
              EQSO
Multiple Chat Rooms.
Don’t have to be licensed ham to use.
Password Protected Rooms.
RF Links available.
Can run more than 1 VoIP application
at once.
Interfaces
 Echolink Interfaces




THE “ULI” BOARD
oUses Standard 1/8” Mono
Connectors
oEasily Re-Programmable
PIC Chip for Updates
oNothing too Complex
oNothing Hidden!
The WB2REM Interface board
 http://www.ilinkboards.com/
The WB2REM\G4CDY “ULI”
        BOARD
oStandard 8 Pin
Microphone connectors
oRJ-45 Modular Connector
oSwitches on front panel
for ON/OFF
oNice installation
presentation
Uses Standard Connectors for Interfacing
Small breadboard area for redesigning
Uses readily available components
Indicator Lights for Status of Operation
VA3TO interface board
http://www.ilinkca.com/
              WIRES II
http://www.vxstd.com/en/wiresinfo-en/
Simple PTT Comport keying
         circuit
Status Lights for Indication of Activity
Small design for Easy installation into
housing
Inputs and Outputs for External devices
http://www.irlp.net/
Parts necessary to build an r. f.
           gateway
The EQSO System
The EQSO system setup
EQSO RF Gateway main screen




              Text   Tex
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EQSO Administrative
     Control
EQSO Administrative control
           #2
EQSO system monitor
Eqso conference server software
EQSO website for software download
      http://www.eqso.net/
EQSO information website http://www.eqso.org
ECHOLINK
     Familiar Look to
     other Applications
     Easy navigation
     through Menus or
     Toolbar Icons
     Help files as well as
     newsgroups for
     support
Controls to help
make audio
seamless
Point vales given to
ensure proper
settings every time.
The Echolink sysop window
When a station connects
When a station connects #2…
Echolink system setup
Windows sound card
   adjustments
Soundcard recording
    properties
Advanced recording console
Conference servers (roundtable
         gathering)
Echolink connection stats
Echolink server setup
Echolink setup r. f. gateway
          timing
    Echolink audio setup and
adjustments for dialup connection
Recording .wav welcome files for
            r. f. gateway
      8 bit mono compression
 The “Bridge” conference server software
     (for echolink) by: Skip WB6YMH
***** http://CqiNet.sourceforge.net *****
     Echolink website:
http://www.echolink.org/el/
ARRL President Jim Haynie, W5JBP addresses
   The N2LEN 9/11 Commemorative Net
THE ARRL NOTES 9/11 NET
9/11 Net Makes Global News
Globally Linked 9/11 Net Check-in List
http://groups.yahoo.com/group
           /echolink/
     The End of slide
      presentation:
Please feel free to use this presentation
at your leisure:
Email: N2LEN@KCRA.ORG
Website: http://www.qsl.net/n2len/
The “N2LEN” cross-linked repeater
system serving the entire New York City
metropolitan area.
Best 73, Len N2LEN

								
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