The Internet Radio Linking Project I.R.L.P. Presented to the Del Norte Amateur Radio Club April 1, 2013 Christie Lynn Rust WA6ZDO

Del Norte Amateur Radio Club Open Repeaters: (Regional Communications) 146.88- 136.5 tone, located in CC, 9th and H Streets 147.18+ 136.5 tone, located above Gasquet on French Hill IRLP System: (World Wide Communications) 147.54 simplex with 136.5 tone. Located at the home of WA6ZDO, near the end of 9th Street and Brother Jonathan Park. Radio operates at 10 watts, with the antenna at 25’ Our system is on all the time!! Talk to the world!!

What the heck is I.R.L.P. ? IRLP stands for Internet Radio Linking Project, and was the brainchild of Dave Cameron VE7LTD of Vancouver BC.   Dave wanted to connect together two distant amateur radio stations, using the internet as a conduit. Cool idea, huh? Now you can sit on the beach with a handheld and have a conversation with someone in South Africa!!

….. A bit more info Dave wanted to communicate from British Columbia to Nova Scotia. After many attempts, in 1998 the IRLP network was born and is now growing by leaps and bounds. IRLP allows the linking of two or more radios together using Voice over IP technology (VoIP) where the analog radio audio is converted to digital IP packets and sent over the internet. At the receiving end it is converted back to analog audio.

IRLP System Designer Callsign: VE7LTD Name: David Cameron Addr: 4708 CAULFIELD DRIVE City : WEST VANCOUVER, BC V7W 1G2 Country: CANADA Email: ve7ltd@irlp.net Home Page: http://www.irlp.net

What is our IRLP station composed of?? The IRLP mode requires… A full time high speed Internet connection A dedicated computer running Linux Some custom hardware/software inside the computer A dedicated radio Each station on the IRLP network is called a NODE and assigned a number. Ours is 8260. It’s kinda like a telephone number. The central main server in British Columbia, Canada keeps track of the nodes, and the functionality of the entire system. You just punch in the node number of where you want to go and Vwaahla…. Your voice comes out there!

W6HY IRLP NODE #8260, Crescent City, CA

Modes of Operation There are two modes of IRLP operation: 1. Point to point (somewhat private) From your point (Crescent City) to a specific place of your choosing, such as Sydney, Australia. 2. Reflector Mode (completely open to the world to listen) Multiple Audio Streams. Much like a party line – everyone hears everyone else!

Point to Point Mode Crescent City Sydney Simplex 8260 IRLP Server 6366 IRLP Server Simplex

Reflector Mode North Carolina RPTR Canada RPTR RPTR United Kingdom Texas RPTR RPTR Australia IRLP Reflector Hawaii California RPTR RPTR Win System Reflector 9100

How do I operate this mode? In Crescent City, tune your radio to 147.54 simplex with a 136.5 Hz tone. Look up on the internet at irlp.net and find what city or place you want to make contact. If you have a repeater directory, you will find nodes. Key your microphone and hit the 4 digit code, then let go of the key If you are close enough to our local node, you will hear the distant station identify to you! NOW WAIT until the squelch tail drops from the Crescent City node. Now, key your microphone, waiting one second, then announce that you are listening and that you are in Crescent City, CA. “Hello, this is WA6ZDO in Crescent City, California monitoring.” Have a delightful conversation. When complete, wait until the squelch tail drops, then hit the numbers 73. That is the code to terminate the link. Then go try another city!! There are zillions of nodes all over the planet. GO PLAY!! If you have an questions, call me! 218-6769

Always be a courteous and good operator! *Pause between transmissions, listen for others * When on a reflector, initially wait 15 seconds before you transmit * Hold your PTT for about 1 second before talking to allow all nodes time to rise * No local rag-chews when on a reflector * Do not kerchunk an IRLP node. They don’t respond like a repeater. Plus, if you are connected to another site, kerchunking causes all other nodes to key up and down * Also, make sure your signal is solid into the node REMEMBER

REFLECTORS… Anything you do on an IRLP reflector can be heard around the world. Listen first, observing how others operate, then give it a try!

Listen to Nets on Reflectors! Round the World QSO Thursday Swap Bob’s Bodacious BBQ WIN System Tech Radio Satellite Great Lakes Marine Mobile WK1RK Kids Society of Engineers QSO Party YL IRLP/Echolink Ham Shopping Club Weather Radio Listeners Newsletter VHF-DX Group IRLP Fun Tailgaters VHF/UHF Swap Insomniac Net Worldwide Friendship Alaska Morning Australian Truck Drivers Swedish Red Cross Kids Guam International Slow Scan TV Say Good Morning Civil Air Search and Rescue University VK Young Amateurs 220 MHz Rag Chewers Space and Information

For More Information Call or email: Christie Lynn Rust, IRLP trustee 218-6769 ~ christielynnrust@gmail.com General Information about IRLP www.irlp.net Node Activity & Connection Status status.irlp.net

Thank you! Any Questions? Now let’s try a demonstration!! Whoohoo

Demo Time!!