Glossary - Motorola MTX-810 User Manual

Alert Tones (cont.)

Glossary

12 General Information
Alert Tones (cont.) /
Glossary
Four "beep" tones indicate that a Call Alert (page) is being
received. These tones will repeat every six seconds until the
page is acknowledged.
(1) Five "beep" tones when a Call Alert is transmitted indicates
that the receiving radio is turned on.
(2) A "beep-bonk" tone when a Call Alert is transmitted
indicates that the called radio is turned off or is not
registered on the selected trunked system.
A continuous "baaaah" tone heard when the radio is in standby
indicates that the toggle switch has been left in the Call Alert
encode position. This is a warning that normal dispatch calls
may be missed.
A telephone-type "ring" is heard when the radio receives a
phone call.
I f a " b a h - b a h - b a h " t o n e i s h e a rd w h e n t h e t e l e p h o n e
interconnect button is pressed, the trunking controller is busy.
Your request for a telephone line will be granted when a
channel becomes available.
A faint "beep" tone heard every ten seconds when the radio is
idle indicates that the tr unking contr oller has failed.
Transmission is still possible, but will be as in conventional
operation.
A radio circuit mutes the speaker when no transmitted signal
is present.
Carrier Squelch. Radio channels with carrier squelch will
unmute (unsquelch) the radio only when a carrier (voice
transmission) is detected. The noise normally heard in "open
squelch" is eliminated.
Private-Line tone coded squelch. A continuous sub-audible tone
is transmitted along with the carrier. Radios in this system will
unsquelch to receive voice communication only if the correct
PL tone is detected along with the carrier.
Digital Private-Line coded squelch. A continuous sub-audible
data signal is transmitted along with the carrier. Radios in this
system will unsquelch to receive voice communication only if
the correct DPL tone is detected along with the carrier.
Motorola Radio-Telephone Interconnect. A Motorola system
(conventional operation only) that provides repeater connection
to the telephone network. The MRTI allows the radio to access
the telephone network when the proper access code is received.