Daktronics All Sport 3000 Series - Manual (Page 17)

2-4 Basic Operation
The radio receiver units used in the scoreboards have a channel-setting switch that
can be set from 1 through 8 (channels 0, and 9-15 are not used). A radio receiver will
accept data from a console transmitter with the same channel (and broadcast group)
setting. The drawings, listed above show how to install the All Sport console in order
to operate one scoreboard or multiple scoreboards at a time.
The receivers also have a jumper that can be used to select broadcast group 1, 2, 3, or
4. A “Broadcast Group” defines a group of radio receivers that in addition to
“listening” to the channel selected on the channel switch will also “listen” for data
broadcast on their broadcast channel. There are a total of four broadcast groups
available.
In this type of system, the receiver unit at the scoreboard must have the channel
switch set to a specific channel. The operator must know which channel the board is
set on. The operator must then enter the specific channel during console startup when
prompted to do so.
Each radio receiver will accept data sent from the broadcast channel of its respective
broadcast group. This is selected by setting the transmitter radio (from the console)
to the respective broadcast group (either 1, 2, 3, or 4). Every radio receiver will also
accept data sent from the “Master Broadcast” channel. This is selected when a
transmitter (console) radio is set to Broadcast Group 0 (BCAST 0) and Channel 0.
The channel number and broadcast group set on the radio installed in each
scoreboard can be verified by cycling power to the scoreboard. Approximately seven
seconds after power up, the scoreboard will show the current channel in the
scoreboard clock digits. A CXX will first be shown where XX is the current radio
channel number. This will be followed by BXCY where X is the current broadcast
group and Y is the current channel number within this broadcast group.
There are three different radio scenarios that can be accommodated.
1. Single Controller System:
In a Single Controller system, all radio receivers and all scoreboards receive
signal from the same All Sport console at all times. The default channel and
broadcast group settings on the receiver are not typically modified. An
example of this type of system is a typical high school football installation.
2. Multiple Controller System With a Single Broadcast Group:
In a Multiple Controller system with a single broadcast group, there are
additional All Sport Controllers for controlling multiple scoreboards. There
is never a scenario where groups of scoreboards that were run by individual
controllers need to be run by a single controller. An example of this type of
system is a softball complex with multiple fields and a scoreboard on each
field.