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Ge n e r a l Inf orm ation
Model 435Β
F
requ ency
R
ange:
R
es ponse Time:
100 kHz to 26 .5 GHz (d ependin g on
p
owe r se nsor
(0
to 99%ο ofrea din g, five time co nstan ts .)
used).
R
ange 1 (most sensitiv e) <10.0 seco nds.
Range 2
<3 .8 second s.
P
ower Range :
Range 3
<1 .3 second s.
(Meter ca libr ated in watts and dBm.)
R
anges 4-10
<500 millisecond s.
W
ith 8481 Β
o
r 8482 θ sensors: 44 dB wi th 9 full scale
Typi cal,
m
easur ed at
r
ecorder
o
utput.)
r
anges of 5, 10, 15, 20, 25, 30, 35, 40 and 45 dBm
(1
m
Wto 25W).
Cal
F
actor:
W
ith 8481 Η or 8482 Η se nsors: 45 dB
w
ith 9 full scale
16-position switch norma liz es
m
eter reading to
r
anges of -5, 0, 5, 10, 15, 20, 25, 30 and 35 dBm
accoun t
f
or ca librat ion factor
o
r
e
ffective effi-
(30 μW to 3W).
ciency.
W
ith 8481 A. 8482Α, 8483Α or 8485Α se n sors : 50 dB
w
ith
Range 85%ο to 100% ο in 1% ο steps.
10 full scale
r
anges of -25, -20, -15, -10, -5, 0, 5,
10, 15 and 20 dBm (3 μWto 100
m
W) .
Cal Adjustment :
W
ith 8484Α se nsor: 50 dB
w
ith 10 full sca l e
r
a nges of
Front
p
anel
a
djust m e n t pr ovi des ca p abili ty to
-65, -60, -55, -50,-45, -40, -35, -30,-25
a
nd
a
djust gain
o
f meter to
m
atc h power senso r in
-20 dBm (300
p
W to 10 μ W ) .
use .
Accuracy:
Inst rumentation:' ±1% ο of full scale on all
r
anges.
Zero : Au tomat ic, operated by front- pane l
s
wi tch.
Ze ro Set: ±0.5% ο of full scale on most se n s i t iv e
r
ange, typical.
Zero Carryover: ±0 .5% ο
o
f full scale when zeroed on
t
he
m
ost sen s itiv e
r
ange.
Noise (t ypical, at constant te mp e r at ure,
p
eak
c
hange over
a
ny
o
n e- minute interval) : 20
p
W
(8484Α ) ; 40
n
W (8481Α, 8482 Α, 8483 Α, 8485Α);
4 μ W (8481Η, 8482Η); 40 μW (84818, 84828) .
Drift (1
h
our, typica l), at co nsta n t temperat ure
after 24-hour warm-up) ; 40
p
W (8484 Α); 15
n
W
(8481Α, 8482 Α, 8483 Α, 8485 Α); 1.5 μW (8481Η,
8482 Η); 15 μW (84818, 84828) .
P
ower
R
eference: Inte rn a l 50 MHz oscillator
w
ith
Type Ν
F
emale connecto r on front
p
anel (or
r ea r panel, Option 003 only) .
P
ower
o
utpu t: 1 .00
m
W.
F
acto ry set to ±0.7% ο traceabl e to the
N
ational
Bureau
o
f Stand ard s.
Accuracy: ±1 .2%ο
w
orst case (±0.9% ras) for
one
y
ear (0 to 55°C).
Ta ble 1-1 . Specif ications
S
PE CI FICATIO N S
R
ecorder Output:
Pr oportional to in dicated po w e r
w
ith 1
v
olt cor-
responding to full scale; 1 kΩ outpu t imped a nce;
BNC connector.
RF Bla nk ing Outpu t:
Pr ovides α co ntact c l os ur e to ground when
a
uto-
zero
m
ode
i
s engaged.
P
ower Cons umption:
100, 120, 220, or 240V +5%ο, -10% ο.
100 and 120
v
olts, 48 to 66 Hz
a
nd 360-440 Hz .
220 and 240
v
o l ts, 48 to 66 Hz .
20
V
-Α
m
a ximum.
W
eight:
N
et, 2.7 kg (5.9
l
bs).
Dlmenilons:
155 mm hi gh (6-3/32 in ches).
130 mm
w
i de (5-1/8 in ches).
279 mm deep (11 in ches).
'Includes senso r non-linearity.
A
dd +2, -4%ο on top two
r
angeswhen usin gthe8481Ά, 8482Α, 8483Α
a
nd 848δΑ powersensors; add ±4.0% on the
top two
r
anges whenusingthe8481B
a
nd 84828 power sensors; ad d ±5 .0% ο on
t
h eto ptwo rangeswhen usingthe8481H and 8482Ηpower sensors.
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