Motorola B3 MTX Series Operating Instructions Manual page 21

12 Getting Started (cont.)
The MTX Series radio generates a number of audible tones to indicate radio
operating conditions:
Note: Some tones are programmable.
A low-battery condition is indicated by a high-pitched, cricket-
like "chirp-chirp" when the PTT switch is released following a transmission.
A short, medium-pitched tone when the radio is first
turned on indicates that the radio has passed its power-up self test and is
ready for use. (Optional).
A short, low-pitched tone when the radio is first
turned on indicates that the radio has failed its power-up self test and is not
ready for use. Contact your service representative for service.
If you press the PTT switch while
the channel is busy, you will hear a continuous, low-pitched alert tone,
indicating that no transmission is possible on this channel. This tone will
continue until the PTT switch is released. (Optional).
A continuous, low-pitched tone is heard when an invalid or
unprogrammed operation is attempted on the radio.
A short, medium-pitched tone when a keypad key is
pressed indicates that the keypress was accepted.
A short, low-pitched tone when a keypad key is
pressed indicates that the keypress was rejected.
A faint "beeping" tone every ten seconds
indicates that the radio is operating in the failsoft mode.
Your radio's time-out timer limits the length of
y o u r t r a n s m i s s i o n t i m e . W h e n y o u a re p r e s s i n g t h e P T T s w i t c h
(transmitting), a short, low-pitched warning tone will sound four seconds
before the allotted time will expire.
If you hold down the PTT switch longer than the
time-out timer's allotted time, a continuous, low-pitched tone will sound,
indicating that your transmission has been cut off. This tone will continue until
the PTT switch is released.
A group of four medium-pitched tones every
five seconds indicates that a Call Alert page has been received.
A group of two medium-pitched
tones (800MHz radios only) indicates that your radio has received a private
conversation call. For all other frequency radios and for enhanced private
conversation, this sequence will be repeated every five seconds for
approximately 20 seconds.
A "bah-bah-bah-bah" tone
when a trunked system is accessed indicates that all available modes are
busy and the radio is in queue for the next available mode.
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