Bird Technologies 4527 - Manual (Page 31)

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Chapter 5 Maintenance
The rugged and simple design of the Bird 43 means that it requires minimal rou-
tine maintenance.
Troublehshooting
The following table contains troubleshooting information for problems that can
occur during normal operation. Find the problem on the table, review possible
causes, and perform the corrective action listed.
This manual does not list all malfunctions that may occur, or all corrective
actions. If a malfunction is not listed or not corrected by the listed actions, con-
tact the nearest Bird Service Center for assistance.
Problem Possible Cause Corrective Action
No meter reading No RF power Check RF source
“Arrow” on element
pointing wrong way Rotate element
DC contact bent Adjust contact (page 20)
Open or short circuit
in meter Replace defective cable
(RG-58/U)
Meter burned out or
damaged Return wattmeter for
service
Intermittent or
inconsistent meter
reading Dirty DC contact on
element Clean contact (page 20)
Faulty transmission
line or antenna Inspect line
Sticky or defective
meter Return wattmeter for
service
High VSWR or
reflected power Foreign material in
line section or in RF
connector Clean connectors
(page 20)
Open or shorted
transmission line Inspect line
Bad load or poor
connectors Inspect load, antenna,
and connectors