PJ5000M
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User Manual
Rev. 2.1 - 28/05/02
7)
Adjust the variable capacitors (3) and (4), relative to the second amplifier output,
to maximize the power level measured by the coupler’s instrument.
8)
Adjust the variable capacitors (5) and (6), relative to the third amplifier output,
to maximize the power level measured by the coupler’s instrument.
9)
Adjust the variable capacitors (7) and (8), relative to the fourth amplifier output,
to maximize the power level measured by the coupler’s instrument.
10)
Adjust the variable capacitors (9) and (10), relative to the fifth amplifier output,
to maximize the power level measured by the coupler’s instrument.
11)
Repeat steps 6, 7,8,9 and 10 until the system power reaches its maximum.
12)
Reassemble the coupler’s upper cover.
13)
Adjust the system output forward power to the nominal value.
14)
If the compensation is done because one PJ1000M was replaced, it is normally
necessary to operate only on the capacitors related to the substituted amplifier.
8.3
Trouble Shooting
A)
Anomaly:
Overdrive protections light up on one or both the
PJ1000M amplifiers.
Solutions:
1)
Decrease the driver power through the Power adjust control situated on the
exciter.
B)
Anomaly:
SWR protections light up on one or both the PJ1000M
amplifiers.
Solutions:
1)
Verify the correct operation of the antenna (SWR < 1.5).
2)
Verify the integrity of the connection cables between the outputs of the five
PJ1000M amplifiers and the HC5-1 Hybrid Combiner (absence of short circuits
and correct connector mating).
3)
Verify the correct connection of the interconnection cables between modules.
