B.A.R.C. IRLP Node 2680
Operating Guidelines
The Burlington Amateur Radio Club (BARC), sponsors
the local IRLP node,
# 2680. The node interface is managed by
Mark Richardson, VA3OBO,
and is remotely RF linked to the 2 meter repeater Club repeater (147.210
MHz +; Tone 131.8).
The IRLP node and the three repeaters,
owned by the BARC, are 'open' to all amateurs that wish to use them.
The operation and maintenance expenses are derived from the proceeds
of the Club's fund raising activities that include the BARC Annual Spring
Fleamarket, in February, and the Ontario Hamfest, at the Milton
Fairgrounds, in July of each year. The Burlington Amateur Radio Club
acknowledges the support of Amateurs in Ontario by providing this open
access system.
Table of Contents
Visitors and Guests
All Licenced Amateurs are welcome to use
the Burlington Node. Club members are encouraged to assist visitors with
the operation of the node. No access codes are required
IRLP Node Number
Convention
Node numbers now contain four digits, ie. Burlington
= 2680; Vancouver = 1000. Node numbers for all IRLP sites can be
obtained from the status website: IRLP
Node Status page.
Reflectors have become Super
Reflectors and contain ten (10) individual channels at each site. See
Reflectors below.
Using IRLP - Making a Call
Before activating the IRLP, monitor
the repeater for activity
Announce your Callsign and state your intention to use the IRLP
- Announce: Vx3xxx for the IRLP
- Release the PTT and listen for other users engaged in a QSO
Dial the four digit node number that you desire to be connected to and release the PTT.
Using IRLP - Completing the
Call
To terminate an IRLP connection following a successful
QSO with another IRLP node:
Dial " 7 3 " to turn off
any node or reflector.
If your signal is too noisy to
turn off the node that you called; (a) request that the called node
terminate the session; or, ask someone on the local repeater to
terminate the call. If all else fails, the call will timeout if there is
no activity for approximately 10 minutes. Do Not use this procedure as
the default process.
NOTE: The local node cannot
be shut down by the local user when the remote, (called node or reflector),
node is transmitting. This is the result of the fact that the Burlington node
is not physically interfaced to the repeater. The LINUX PC and Internet
connection are connected to a GE, Phoenix base station / mobile radio.
When there is inbound audio, to Burlington, The local IRLP transmitter is active
and the receiver is disabled. Therefore, DTMF tones transmitted by local
mobiles or portables are not received during this period.
Super
Reflectors
The old reflectors have been
upgraded to "Super Reflectors" so that each reflector node
contains a "Main Channel" and 9 supplementary channels. The main
channel " 0 " is the primary contact for a node. Private Scheds
can be setup on any of the other channels.
Channel Configuration - Sample -
Indiana Reflector
9200 Main
Channel
9201 Channel 1
9202 Channel 2
9203 Channel 3
through
9209 Channel 9
When dialing a Super Reflector, ie.
channel 9, the announcement notifies that caller that they have reached
node n n n n, and then announces the channel number that has been
selected by the caller
The previous practice of disabling
the timeout timer to lock a node onto a reflector has been discontinued at
the present time.
Local Interference
If the repeater is receiving moderate
or excessive interference from skip, co-channel or inter-modulation sources,
do not make IRLP connections to remote nodes, particularly the reflectors.
The interference will capture the internet connection and continue to
transmit the interference until it discontinues. During periods of
local interference, the node may be disabled by the Administrator.
IRLP
Misuse
The IRLP
will be disabled on those occasions when the IRLP interface connection
is being misused.
