Welcome to Internet Linking 101

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Welcome to Internet Linking 101
HAM RADIO UNIVERSITY 2003 Presentation by Len
Signoretti N2LEN January 19, 2003
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Seminar Objectives

• Understanding of VoIP (Voice over IP)
• Relativity to Amateur Radio
• Uses of Echolink System
• Other alternatives using VoIP Technology

• Hardware Requirements
• Using Echolink
• Resources

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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

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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

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Alternatives to Echolink
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Echolink
Pros

• Friendly Windows GUI

• Usable from Computer OR Radio

• Easy configuration for RF Link or Computer user

• No Special hardware required

Cons

• VOX PTT

• No AGC

• Not able to Connect and Disconnect to and from
  Multiple stations ( RF Configuration )

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IRLP
Pros
COS / COR Activated PTT Indicator LEDs for
visual indicators May be more stable the other
OSs
Cons
Having to learn new OS Have to have 24/7
connection
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EQSO

• Multiple Chat Rooms.
• Dont have to be licensed ham to use.
• Password Protected Rooms.
• RF Links available.
• Can run more than 1 VoIP application at once.

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Interfaces
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Echolink Interfaces
VA3TO
WB2REM
West Mountain
THE ULI BOARD
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WB2REM

• Uses Standard 1/8 Mono Connectors
• Easily Re-Programmable PIC Chip for Updates
• Nothing too Complex
• Nothing Hidden!

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The WB2REM Interface board http//www.ilinkboards.
com/
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The WB2REM\G4CDY ULI BOARD
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West Mountain

• Standard 8 Pin Microphone connectors
• RJ-45 Modular Connector
• Switches on front panel for ON/OFF
• Nice installation presentation

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VA3TO

• Uses Standard Connectors for Interfacing
• Small breadboard area for redesigning
• Uses readily available components
• Indicator Lights for Status of Operation

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VA3TO interface board http//www.ilinkca.com/
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WIRES II http//www.vxstd.com/en/wiresinfo-en/
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Simple PTT Comport keying circuit
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IRLP

• Status Lights for Indication of Activity
• Small design for Easy installation into housing
• Inputs and Outputs for External devices

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http//www.irlp.net/
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Parts necessary to build an r. f. gateway
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The EQSO System
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The EQSO system setup
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EQSO RF Gateway main screen
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EQSO Administrative Control
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EQSO Administrative control 2
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EQSO system monitor
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Eqso conference server software
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EQSO website for software downloadhttp//www.eqso
.net/
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EQSO information website http//www.eqso.org
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ECHOLINK

• Familiar Look to other Applications
• Easy navigation through Menus or Toolbar Icons
• Help files as well as newsgroups for support

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• Controls to help make audio seamless
• Point vales given to ensure proper settings every
  time.

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Connection Statistics
Node / User List
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The Echolink sysop window
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When a station connects
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When a station connects 2
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Echolink system setup
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Windows sound card adjustments
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Soundcard recording properties
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Advanced recording console
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Conference servers (roundtable gathering)
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Echolink connection stats
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Echolink server setup
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Echolink setup r. f. gateway timing
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Echolink audio setup and adjustments for dialup
connection
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Recording .wav welcome files for r. f. gateway
8 bit mono compression
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The Bridge conference server software (for
echolink) by Skip WB6YMH
http//CqiNet.sourceforge.net

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Echolink website http//www.echolink.org/el/
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ARRL President Jim Haynie, W5JBP addresses The
N2LEN 9/11 Commemorative Net
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THE ARRL NOTES 9/11 NET
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9/11 Net Makes Global News
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Globally Linked 9/11 Net Check-in List
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http//groups.yahoo.com/group/echolink/
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The End of slide presentation

• Please feel free to use this presentation at your
  leisure
• Email N2LEN_at_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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Questions??