IRLP – How to


In keeping with the ideals of IRLP Godfather Dave Cameron VE7LTD, this node is open to all licensed amateurs. All incoming calls are accepted and currently there is no access code required to call other nodes. When there’s no human (!) sitting beside the box to directly monitor what’s happening, REFLECTORS MAY BE BLOCKED as per the International IRLP guidelines for simplex nodes. This means that if you try to access a reflector and get the dreaded “no calls allowed to this node” message, Johnno could be off somewhere doing something else!

How to call

When calling another node, identify your station and the name or number of the node you are calling, then key in the remote node DTMF numbers. After the “Link On” announcement, AND BEFORE YOU PUT OUT A CALL, listen for approx 10 seconds to make sure you don’t interrupt anything that may be in progress at the other end.

If the node you call is connected to a reflector (you’ll hear a message), you can possibly catch the station you want by simply connecting to that reflector and giving them a call ……some nodes use reflectors as a “meeting place”. Conversely if our node is already connected to a reflector and you’d like to call another node, it’s OK for you to ask if someone is using it, and if not, disconnect from the reflector with either “73” or “#”.

What to do between overs

On each over, leave a 1 – 2 second pause after pressing the mic switch…….this allows for link delays and stops the first part of your audio from being cut off. Of course as per any other Amateur on-air procedure, it goes without saying that it’s accepted practice to let anyone else break in by leaving a reasonable pause between overs, say 2 or 3 seconds.

The dreaded time-out GOTCHA

**** Be aware that there is a 5 minute timeout for IRLP. If you transmit to the node for more than this in any one over, the machine will cut you off and whatever connection was running will go west as well! Many repeaters that may be connected at any time will have even less timeout, so it’s advisable to keep your transmissions reasonably short, as if you were operating through the “local” repeater ****

After you’re finished

Before disconnecting after the QSO it’s considered courteous to ask if anyone else would like to use the connection. To disconnect, use DTMF 73 or #. It’s not necessary to use the disconnect code if the node being called was busy, or not available for some other reason.

Bear in mind that when a connection is made (other than to a reflector), a recorded announcement of the calling node is played over the remote node, so if you simply connect to another node and then disconnect without saying anything, like someone “kerchunking” a repeater, “they” know which node was responsible. This sort of thing is unwelcome, and can lead to a node being blacklisted so please let’s not let it happen here.

Best place for the good oil is IRLP Net, and a list of all the “nodes” is available at

EchoIRLP Node 6527 / 96527 Administrator

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