HAM RADIO UNIVERSITY 2003 Presentation by Len Signoretti

HAM RADIO UNIVERSITY 2003 Presentation by: Len Signoretti N 2 LEN January 19, 2003

Seminar Objectives Understanding of Vo. IP (Voice over IP) Relativity to Amateur Radio Uses of Echolink System Other alternatives using Vo. IP Technology Hardware Requirements Using Echolink Resources

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 Ø CW – Morse Code ØAM – Amplitude Modulation ØFM – Frequency Modulation ØSSB – Single Side Band ØDigital – Packet, Pactor, Amtor, RTTY, PSK 31, … ØVo. IP – Voice over IP

Alternatives to Echolink

Echolink üFriendly Windows GUI üUsable from Computer OR Radio üEasy configuration for RF Link or Computer user üNo Special hardware required v. VOX PTT v. No AGC v. 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 Vo. IP application at once.

Interfaces

Echolink Interfaces THE “ULI” BOARD

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

The WB 2 REM Interface board http: //www. ilinkboards. com/

The WB 2 REMG 4 CDY “ULI” BOARD

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

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

VA 3 TO interface board http: //www. ilinkca. com/

WIRES II http: //www. vxstd. com/en/wiresinfo-en/

Simple PTT Comport keying circuit

q. Status Lights for Indication of Activity q. Small design for Easy installation into housing q. 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

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 WB 6 YMH ***** http: //Cqi. Net. sourceforge. net *****

Echolink website: http: //www. echolink. org/el/

ARRL President Jim Haynie, W 5 JBP addresses The N 2 LEN 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: N 2 LEN@KCRA. ORG Website: http: //www. qsl. net/n 2 len/ The “N 2 LEN” cross-linked repeater system serving the entire New York City metropolitan area. Best 73, Len N 2 LEN