Presented by Rod Ekholm Jr KC 7 AAD

Presented by Rod Ekholm Jr. KC 7 AAD Echolink Node Number: 24100

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 • Seemless 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

Echo. Link 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

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

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

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

Setup 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 seemless Point vales given to ensure proper settings every time.

For more info: Rod Ekholm Jr. KC 7 AAD Kc 7 aad@compfun. net http: //www. compfun. net/kc 7 aad Echolink Node Number 24100 444. 125 MHz ( 100. 0 Hz PL ) (509) 468 -7057 Presentation By: Rod Ekholm Jr. – KC 7 AAD October 2002