Appendix C Setting the Inter switch C-8
C.3 Reference
C.3.1 Pre-heat time after changing the connection pattern
After changing an Inter switch connection pattern has been completed, the pre-heat time varies
depending on the connection state of the radar antenna and display unit before the change.
This is for protecting the electron tube that emits the radio waves.
• If the radar antenna was already being used before setting the new connection pattern, a pre-heat
time will not be required.
• If the radar antenna was not being used before setting the new connection pattern, a pre-heat
time will be required.
C.3.2 Precautions while changing the connection pattern
A setting of change of the connection pattern may not be reflected immediately. This is because time is
taken for the internal processing and, in this case, repeat the changing operation again after leaving a
time gap of several seconds.
C.3.3 Precautions during a slave connection
When the master display unit is not in the transmit state, it is not possible to put the slave display unit in
the transmit state. Further, when the master display unit goes from the transmit state to the
transmission standby state, the slave display unit is forcibly put into the transmission standby state. In
this case, the message "ISW(Master Standby)" is displayed in the alert notification area and the
notification sound is made.
It is not possible to carry out control of tuning in a slave display unit. Tuning is controlled by a master
display unit.
Changing the distance range of a slave display unit is restricted by the range and transmission pulse
length/transmission pulse repetition frequency of the master display unit. As a rule, although it is not
possible to change the range of the slave display unit to a range larger than the range of the master
display unit, depending on the range, if the transmission pulse length and the transmission pulse
repetition frequency are the same, it may be possible to select a range larger than the range of the
master display unit. When the master display unit makes the range smaller or changes the
transmission pulse length, the range of the slave display unit may be changed forcibly. In this case, the
message "Master Range CHG" is displayed in the alert notification area and the notification sound is
made.
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