The Internet Radio Linking Project in Raleigh
Sponsored by the KD4RAA-K4JDR Repeater Group
UHF Link System(see page 2) IRLP 4270 is connected full time to the Raleigh (East Coast) Reflector 9210.
146.775-(88.5 PL) IRLP Reflector connections and point to point connections. The 2 meter repeater is also used for the VoIP Skywarn Net with the National Hurricane Center that is held every Saturday night at 7:30 PM The NHC uses EchoLink and IRLP together during Nets and Emergencies. Open access.
IRLP use differs a bit from conventional FM repeater use. As with any linking system, especially with PL tones, it is subject to slight rise time delays. Also the internet stream is buffered with a slight delay. The most important guidelines to remember are to listen longer before use, and to leave a pause both before transmitting and after pressing the PTT. By pausing before you speak and between transmissions you 1) give other Nodes a chance to disconnect, 2) allow for Ids you may not hear but which are playing on other Nodes, and 3) allow users on other Nodes a chance to check in.
Remember: anything you do on an IRLP Reflector can be heard on the participating linked repeaters. Please listen to observe how others do it before you give it a try.
Pause between transmissions, listen for othersHold your PTT for at least 2 seconds before talking to allow all the Nodes and repeaters with PL tone time to rise Make sure your signal is good enough No local rag-chews when on a high volume Reflector Do not kerchunk -- which causes all other Nodes to key up Do not discuss IRLP codes on the air -- refer inquiries to a local Control Op or request a supporting membership. Reflector 921 Channel 0 is used to connect the UHF Link System repeaters so normal traffic can continue. At times other IRLP systems may connect and are welcome. There is a net held every Monday night at 7:30 PM that connects automatically with the Coastal and Down east Link Systems for a wide coverage area link.
Raleigh:NCís 1st IRLP Node, sponsored by the KD4RAA-K4JDR Repeater Group -- not a club, but open to supporting membership that allows for node to node code privileges.
146.775- 88.5 PL KD4RAA located in Raleigh at 320 feet, near the Sate Fairgrounds open Node, courtesy tone present when IRLP link is active
(Node 4260) Sponsored by the KD4RAA-K4JDR Repeater Group. (Antenna pattern Northeast)
UHF Link System IRLP Node 4270
The UHF Link
System is a string of local UHF repeaters that have an RF link to a Backbone
Hub repeater. The system is supplemented with additional linking through the
IRLP-Voice OverIP system to other IRLP Nodes. We also have EchoLink
# 42704 to use for on demand linking with other EchoLink repeaters in the
area or the US.
The UHF system is designated for local and Coastal Skywarn Administration. The Coastal Link System will be activated if the need ever arises during severe weather to exchange useful information from the Coastal areas surrounding Wilmington, Morehead City and the Outer Banks to the National Weather Service office in Raleigh. The system also is used for the VoIP Skywarn activations to monitor Reflector 921 Channel 9 or to use for point-to-point connections based on the needs of the NHC.
This UHF system has a Weather Alert radio monitoring feature with SAME technology that activates to specified Warnings in the coverage area monitoring the NWS Garner transmitter on Weather Channel 3 (162.450 mhz).
Web Sites of intrest on the IRLP, EchoLink and local Linking
Carolina 440 UHF Link System Repeater List
rev 17 August 2010 k4jdr