Appendix B: CPSW Reference Material
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Last Call Transmit Any Channel
This key will cause the last channel that received audio (“Call” activity) to transmit. The
channel will not be selected.
Last Call Transmit Selected Channels
This key will cause the last “Selected” channel that received audio (“Call” activity) to
transmit. The channel will not be selected.
Last Call Transmit Unselected Channels
This key will cause the last “Unselected” channel that received audio (“Call” activity) to
transmit. The channel will not be selected.
Monitor
This key causes the programmed PL monitor current or tone to be sent to the “Selected”
channel, thereby disabling the “private line” feature on the radio.
Site Intercom
The site intercom key allows the console operator to communicate with the “Selected”
radio site by using the audio lines as an intercom path. When this key is pressed, only the
audio is sent to the channel; the transmitter is not keyed.
Alert
Select a key to generate the desired alert tone to be transmitted to the “Selected” channel.
The desired alert will be sent as long as the key is held down.
All Mute
This “All Mute” function key will cause the audio from all “Unselected” channels to be
muted. The “selected” channel will be unaffected. If a muted channel is “selected”, it will
be unmuted as long as it is selected. If it becomes “unselected”, it may become muted
again if the “all mute” function has not been toggled.
Volume Reset
This key will cause the received audio level of the selected channel to be set to its default
level, usually 51%.
Group Select
The group select key allows a set of preselected radio channels to be selected with a single
key. Mark check boxes to add or delete a channel from this group key. Several group keys
may be defined on a single position. A channel may be a member of several different