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
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