2-32
Matching Operation
Start
Phase measurement
Sleep mode
Outputting TUNE END
Matching CKT bypassed
Capacitive Tuning
Phase ?
SWR < 1.3
Capacitive
YES
Inductive
NO
SWR Calculation
SWR < 2.0
Inductive Tuning
L UP/DOWN
C UP/DOWN
SWR Calculation
SWR < 1.5
DATA
Memory
2nd try ?
3rd try ?
YES
YES
YES
NO
NO
Keeping relays
Detector OFF
See note 1.See note 2.
Changing L for
minimum Vr
Changing C for
minimum Vr
NO
NO
YES
DATA
Memory
Note 1)
Inductive tuning
At first a dip-point of the reflection voltage Vr is sought by varying the capacitor of the
matching circuit. Then, the smallest SWR is sought by varying the C and L.
Note 2)
Capacitive tuning
At first a dip-point of the reflection voltage Vr is sought by varying the coil inductance of
the matching circuit. Then, the smallest SWR is sought by varying the C and L.
Figure 2-27 Matching Operation
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