Welcome to Internet Linking 101 HAM RADIO UNIVERSITY 2003 Presentation by: Len Signoretti N2LEN January 19, 2003
Understanding of VoIP (Voice over IP) Relativity to Amateur Radio Uses of Echolink System Other alternatives using VoIP Technology Hardware Requirements Using Echolink Resources Seminar Objectives
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
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 )
IRLP Pros: COS / COR Activated PTT Indicator LED’s for visual indicators May be more stable the other OS’s Cons: 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.
Echolink Interfaces VA3TO WB2REM West Mountain THE “ULI” BOARD
WB2REM • Uses Standard 1/8” Mono Connectors • Easily Re-Programmable PIC Chip for Updates • Nothing too Complex • Nothing Hidden!
West Mountain • Standard 8 Pin Microphone connectors • RJ-45 Modular Connector • Switches on front panel for ON/OFF • Nice installation presentation
VA3TO • Uses Standard Connectors for Interfacing • Small breadboard area for redesigning • Uses readily available components • Indicator Lights for Status of Operation
IRLP • Status Lights for Indication of Activity • Small design for Easy installation into housing • Inputs and Outputs for External devices
EQSO RF Gateway main screen Text Text Text Text Text Text Text Text Text
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.
Connection Statistics & Node / User List
The “Bridge” conference server software (for echolink) by: Skip WB6YMH ***** http://CqiNet.sourceforge.net *****
ARRL President Jim Haynie, W5JBP addresses The N2LEN 9/11 Commemorative Net