Tait TM8250 Operator's Manual page 77

To check the new group details, press Back and select the
Group members menu option. The new priority channel
has the
Symbols and messages that may appear when
changing group details
The following symbols may appear when viewing group
membership details, adding or deleting channels from a
group, or changing a group's transmit or priority channels.
Symbol Meaning
This channel is used to transmit on when there has been no
recent activity. You cannot delete this channel (it will not appear
under Delete channel).
This channel is the group's first priority channel. You cannot
delete this channel (it will not appear under Delete channel).
This channel is the group's second priority channel. You cannot
delete this channel (it will not appear under Delete channel).
There is more than one instance of this channel in the group (the
channel will be scanned more often). If you delete this channel,
the radio will attempt to delete all instances of the channel.
or symbol next to it.
Operating in conventional mode 77