CTCS will work on repeaters 146.610MHz, 223.980MHz, 444.950MHz and 145.330MHz Repeaters. All the xmitters are transmitting 131.8 tone.
The 6MTR and 10Mtr Repeaters do not receive or transmit PL.
It is a good practice to operate PL 131.8 on your xmitter at all times. When noise or dx starts coming into the system, some of the receivers may be put on PL. Also the downtown remote voting receivers are always on PL.
The Delmont Repeater is always on PL 145.330MHz Repeater
There is no pl on the Packet Digi System.