BIRD Thruline APM-16, Руководство по эксплуатации

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18
Chapter 5 Maintenance
The rugged and simple design of the Bird APM-16 means that it requires
minimal routine maintenance.
Troubleshooting
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,
contact 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
Battery drained
Check the battery and replace if
necessary
DC contact bent
Adjust contact (See "Contact
Adjustment" on page 19 )
Open or short circuit in
meter leads
Replace defective leads
Meter burned out or
damaged
Return wattmeter for service
Intermittent or
inconsistent meter
readings
Dirty DC contact on element
Clean contact (See "Cleaning"
on page 19 )
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 connectors Clean connectors (See
"Cleaning" on page 19 )
Open or shorted
transmission line
Inspect line
Bad load or poor connectors
Inspect load, antenna, and
connectors