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INSTRUCTION BOOK
THRULINE
®
RF POWER METER MODEL 4421
AND
THRULINE
®
DIRECTIONAL
RF POWER SENSORS
4020 SERIES, 4027A SERIES,
4027F SERIES, AND 4028 SERIES
Bird® Electronic Corporation
30303 Aurora Road
Cleveland (Solon), Ohio 44139
Sales & Technical Support:
440-248-1200
866-695-4569 toll free
Sales email:
Technical Support email:
©
Copyright 2011
by Bird Electronic Corporation
Instruction Book Part Number 920-4421 Rev U
Thruline
®
is a Registered Trademark
of Bird Electronic Corporation