BIRD THRULINE 43 Series, Instruction Book

Page: 46 / 66

Cleaning
If any of the contacts or line connectors become dirty, they should be cleaned
with a good contact cleaner or dry cleaning solvent on a cotton swab stick.
Clean all contact areas and especially the exposed faces of the Teflon
insulators.
Problem Possible Cause Corrective Action
No meter indica-
tion No RF power Check RF source
“Arrow” on Plug-in
element pointing in wrong
direction Reposition element
No pick-up from dc
contact finger Adjust per the Contact
Adjustment paragraph
Open or short circuit in dc
meter Replace defective cable
(RG-58/U)
Meter burned out or
damaged Replace or return
wattmeter to the factory
for meter replacement and
recalibration.
Intermittent or in-
consistent meter
readings Sticky or defective meter Replace or return
wattmeter to the factory
for meter replacement and
recalibration
Dirty dc contact on
elements Clean per cleaning
paragraph
Faulty transmission line or
antenna Inspect line
High VSWR or
Reflected Power Bad load or poor
connectors Replace load, antenna or
connectors
Shorted or open
transmission line Service or replace line
Foreign material in line
section or in RF connector
bodies See Cleaning paragraph
Bird Model 43 Wattmeter
32