User manual

User Manual PM200
Page 12
English
Muting Options
The radio is programmable with different muting options: These options are associated with
various Selcall functions. Please check with your dealer for full programmable options.
Power up: OPEN - the radio is powered up in Monitor Open mode, (Speaker On).
CLOSE - the radio is powered up in Monitor Closed mode. (Speaker Quiet).
Auto Mute: Enabled, the radio automatically returns to its quiet state after a period of inactivity
(see timer below). Disabled the radio remains in its open mode until it is manually put into its
quiet state (depending on programming).
Timer: This is the length of time of inactivity after which the radio returns to its quiet state.
PTT Timer
The PTT Timer can be set from 0 – 990 seconds with 10 second increments, which is the allowed
time for a sustained transmission.
TX Inhibit
TX inhibit does not allow a transmission for a set programmed time after the PTT timer has
expired, to allow a cool off period for the transmitter. The settings are from 0 – 75 seconds in 5
sec. increments.
TX Delay
TX delay eliminates squelch tails associated with CTCSS tone transmissions, by removing the
CTCSS tone from the end of a transmission for an approximate 200ms before the carrier is
dropped.
Busy Channel Lockout
The radio has several inhibit functions which restrict transmission under the following conditions:
Busy Channel Lockout – ON: upon PTT being pressed, if carrier is present, the radio will not
transmit and an audible alert tone will be heard.
Busy Channel Lockout – OFF: upon PTT being pressed, the radio transmits regardless of the
presence of carrier.
Basic Radio Operation
Marked Idle
Marked Idle enabled: can only be enabled if Busy Channel Lockout is ON. If the Busy Channel
Lockout is on and carrier is detected, the radio shall be permitted to transmit if the RX squelch
option is valid.
Marked Idle disabled: eliminates Marked Idle and defaults back to ‘Busy Channel Lockout’.
PTT Lockout
The radio can control the PTT action in three ways according to radio busy status.
Off: Allows PTT to operate regardless, whether the radio is in an open state (monitor open) or
not, and does not change the state of the radio.
Auto Open: ‘Auto Open’ opens the monitor of the radio after pressing PTT.