IRLP DTMF

IRLP web site.

How to use

Access the IRLP node by using the 449.5750- (173.8hz) repeater. Just setup your rig as you would for any other repeater - and use your DTMF pad to send commands to control the node. (The repeater itself ignores DTMF) Essentially, the IRLP node is just 'another ham' on the repeater.

The 449.575 machine is an "open" repeater located on the Wyoming Medical Center roof. All licensed amateurs are welcome to use the repeater as a repeater or to access the IRLP node. And, if the node happens to be offline or disconnected, it's a pretty good repeater on it's own!

DTMF Commands

Please, give your call sign before sending any DTMF codes

Remember to ID yourself after using the node

Connect

To connect to a node or a reflector:
Just dial the node or reflector ID number with your DTMF pad.

For example - if I wanted to connect to node number 1011, after checking to ensure no one else is using the repeater or the Casper IRLP node (listening first - maybe even ask, "Is the repeater in use?"), I'd ID with may callsign and then dial "1011" on my radio's DTMF pad. Wait for the connection confirmation (yup, it'll talk to you) and enjoy!

Use the same method for connecting to a reflector.NOTE: reflectors use 9xxx numbers.

It is suggested to wait about 3 seconds after you push your radio's PTT button before speaking or sending any DTMF tones. 
Also allow about 3 seconds between 'overs'. The system does take a bit of time to do it's thing. 
You'll just cut your self off if you get in too much of a hurry.

Disconnect

Just send "73" via your DTMF pad. Again, nothing else is needed. This will drop all IRLP connections on this node, be they a reflector or another node.
And of course, don't forget to ID with your callsign when finished.

Node Status

You can have the node tell you it's current status by:

1. Listening to ensure the repeater is not in use
2. ID yourself
3. Send DTMF: 411

Wyoming IRLP Nodes

This list is from 8 Sept, 2025 and will be updated as changes are noticed

Wyoming IRLP Nodes

Node ID	Node City	Frequency	CTCSS	Callsign	Notes
3044	Worland	444.9250	103.5	W7BEQ
3044	Evanston	444.800	107.2	WB9GQF
3372	Laramie	446.025	None	KD7KMU	Pi EchoIRLP
3464	Jackson Hole	447.700	123.0	W7TAR
3680	Gillette	147.525	100.0	WR7CW
3794	Cheyenne	445.975	100.0	N7DEN	Pi EchoIRLP
7154	Kemmerer	449.825	100.0	KF7EHE
7707	Casper	449.575	173.8	KA7O

Available Reflectors

See This Page for a list of available reflectors.
I do suggest visiting a reflector's home page before you connect - just to understand what that reflector is for and how it's expected to be used. I'd hate to see Casper's node get 'black listed' for inappropriate reflector usage!

Reflectors have 'channels'. These are indicated by the ones digit in their number. For example, 9250 is the Western Reflector. But as you can see on their web page, this reflector has 10 channels 9250 through 9259. You can manually select one of the channels just by entering it with your DTMF pad. So, if I wanted to connect to their German Speaking nodes - I'd enter 9252. Uh, don't use this example unless you speak German - well.

To learn what reflector channels are available and what they're used for - visit that reflector's web page and read up.

Connecting to an improper channel - say a linked system's linking channel - 
when you're not welcome is a VERY good way to get us black listed. Please, 
If you're at all unsure - ask first. This can't be too strongly emphasized. 
There are many places where you can learn by doing - this isn't one of them. 
Know you're welcome before connecting.

It can take - and is often worth - a bit of digging to find reflectors. Check out the The EchoCloud Network in Sydney Australia for but one example. Node 9500.

Local Shortcuts

The following DTMF 'shortcuts' have been setup to allow a bit easier operation. Although, it is just 3 digits instead of 4 - not a whole lot of difference.

If you'd like one added, just contact KA7O

Experimental

Weather Reports

Do not use while the node is connected Check the node's status with DTMF: 411 first.

Weather reports. Yea, what with "Igor" right here at 162.400Mhz, not a whole lot of call for another voice telling you what the weather is like outside. However, it can be helpful for 'hearing' what's up at a distant location.

All you need is the zip code of the area you're interested in (Sorry, US only).

There are 3 weather reports available:

1. Current Conditions (C2)
2. Forecast (C3)
3. Extended Forecast (C4)

The DTMF sequences follow this syntax: C<n><zip code>

The letter "C", followed by a 2, 3 or 4 and then the zip code for the area you want to hear about. No spaces.

For Casper's current conditions, at 82601, enter "C282601". "C2" being the command for current conditions and "82601" indicating where you're interested. For the Casper extended forecast, enter C482601.

Be patient. The node first has to download a text file, parse it - extract the pertinent strings, save them to a new text file, then read that file into the voice synthesizer (not the fastest box on the playground), write the sound file, then key the radio and play the sound file. For the C3 and C4 - this wait can feel like it's broken. And then, what you get out of it isn't easy to understand - yet.

Feel free to play with it - it uses a free 'test to speech' voice synthesizer (festival) and it doesn't sound very nice and can actually be a bit hard to understand. I'll be playing with some of the settings, see if I can improve things a bit. But, this part is as likely to just 'go away' as improve. Kind of hard to spend too much effort when "Igor" is right over there (just put in the zip code of the area you're interested in).

Questions or Problems

Contact Tate, KA7O. Thanks!