User`s guide

MP-70/50 Scoreboard Controller User’s Guide
142
The reason for these garbled signals is that the wireless specification
doesn’t allow the simultaneous use of more than one wireless control set
to one particular channel. A situation where two or more controls are
located within each other’s range and set to transmit on the same channel
will produce competing signals. When this happens, the scoreboards will
attempt to display both of these competing signals, resulting in garbled,
unintelligible digits. Fortunately, your control includes the capacity to
broadcast on 14 channels, and so the maximum number of wireless con
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trols that can be used within a local vicinity is 14.
Instead, you can avoid garbling these transmission signals by setting up
the controls in one of two different fashions:
• The recommended method of operating multiple scoreboards from
one wireless control is to use the SEL TRANSMIT mode and tune the
control and scoreboards to the same channel. As displayed below, the
Court 1 scoreboards and control are tuned to channel 4 and the Court
2 scoreboards and control are tuned to channel 7. Keep in mind that
this arrangement will require you to physically change the channel at
one of the scoreboards of both courts if you ever want to operate all
four scoreboards independently with four wireless controls. On the
other hand, the benefit of this setup is that if either control ceases
transmitting, the scoreboards that particular control was operating will
not lock on to the signal from the other control.