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General Settings -> Multicast
Impolite Multicast -
Enabling
impolite
multicast
tells the system it is allowed to keyup even if the radio channel is
busy. When it is time to broadcast an announcement and the radio channel is busy, the system will first wait for
the Multicast Busy Lockout Delay time to expire. This will happen even if
impolite
multicast
is disabled.
If the radio channel is still busy after that time, the system will check to see if
impolite
multicast
is enabled. If it is,
the transmission will take place. If it is not, the transmission will be abandoned and never take place. Note that
the announcement will be broadcast over the PA system in either case.
Multicast Busy Lockout Delay -
When it is time to broadcast an announcement over the radio, the radio channel
may be busy. This parameter specifies how long the system will wait for the radio channel to become unbusy
before transmitting the announcement. If the channel becomes unbusy before this time expires, the
announcement is transmitted.
If the radio channel is still busy after this time, the system will check to see if Impolite Multicast is enabled. If it is,
the transmission will take place. If it is not, the transmission will be abandoned and never take place. Note that
the announcement will be broadcast over the PA system in either case. This parameter should never be set to 0
unless Impolite Multicast is enabled. In either case it is recommended this be no less than 2 seconds.
Mutlicast Sync Window Delay -
The purpose of this setting is to ensure that the announcement broadcast over
the PA is synchronized with the announcement transmitted over the radio. Synchronization is desirable when
staff members with radios are within earshot of the PA system. If synchronization is not desired, this time may be
set to 0. If there is no synchronization, broadcast over the PA and transmission over radio will start at different
times. This could make the announcement difficult to understand for those staff members with radios.
This parameter specifies how long the system will wait for the transmission over radio to begin before
broadcasting the announcement over the PA. This amount of time needs to take into account channel acquisition
time if in a trunking system as well as the programmed Keyup Delay. Also, when it is time to broadcast an
announcement over the radio, the radio channel may be busy. If that is the case, a few seconds of busy time
should be accounted for as well.
