Operation Manual

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A-10
APPENDI
X
3. REFERENCES
Preheating Time after Pattern Selection
After switching over the interswitch patterns, it is necessary to wait for the time as
mentioned below because the pre-heat time is different from the previous
interconnection between the MTR and the display unit. This measure is taken for
protecting the electronic tube emitting radar pulses.
(a) Not changed to the new interconnection condition:.........................No preheat
time
(b) Changed to the new interconnection condition.
However, the MTR was used before change:...........................................30
seconds
(c) Changed to the new interconnection condition.
However, the MTR was used before change:.............................................3
minutes
Notes on Pattern Selection
Immediately after switching over the patterns, the try to select another pattern may fail.
This means that even If the pattern switchover is completed, it takes some time to
prepare for the next interswitch operation. In this case, "ISW BUSY" will be indicated in
the message area on the display lower right, and the interswitch operation is not
available.
Alarm Sound Control
The interseitch alarm continues to sound for about 5 seconds. In setting the alarm sound
level, open the Sub1 Menu, press [2] switch to select the "5.BUZZER" in LEVEL Menu.
When stopping the alarm sound immediately after it sounds, press [ALARM ACK] switch.
Even when the alarm sound stops, a certain message will remain in the message area.
Notes on Master/Slave Connection
The Master/Slave connection is a configuration in which the Display Unit connected to the
Scanner Unit is the Master Unit, while the Display Unit connected to the Master Unit is a
Slave Unit. Of the interswitch patterns, the following pattern numbers includes the
Master/Slave connection:
a) 2-unit System: No.3, No.4, No.5 and No.6
b) 3-unit System: No.4, No.5, No.6, No.7, No.8, No.9, No.10 and No.11
If the Master Display Unit is not in the transmission state, it is impossible to set the Slave
Display Unit to the transmission state, If the Master Display Unit is changed from the
transmission to the standby mode, the Slave Display Unit will also be set to the standby
mode forcibly. In this status, "MTR ST-BY" will be indicated in the message area and the
alarm will beep.