Wavetek 3001 Instruction Manual page 42

d
Bm
T
h
e output
ME
T
ER
er
r
or is
m
easure
d
at 50 MHz in two 10 dS output
r απηεs I+ t 3 to +3 λ 8m and 11 to -7
dR
ml .
T
h
e
f
lat
n
ess is
rn eas ιι re d relative to 50 MHz i
n
10 MHz ste
p
s between 10
and 520 MHz at ι 12, 13,
and
.7
dBm
output levels .
T h e . level accuracy below -7 d
8m
d
e
p
e
n
ds upon t
h
e O
U
T
PU T Ste p
Atten
υατσ
r
er
r
o
r in
a
dd
ition to t
h
e out
p
ut
M
ET
ER er
ror an
d
t
h
e flat
n
ess .
T
h
e O
U
T
PU
T Ste
p
Atte
nu
ato
r
is α com b i
n
ation ο 1
p
i-
p
a
d
sectio
n
s of 10,
20, 30, 30, an
d
40
dB .
These five
p
i-
p
a
d
s are
pr
og
r
am
m
e
d b
y ca
m
s to
provi
d
e 0 to 130 d8 of attenuation in 10
dB
ste
p
s as shown in t
h
e ta
b
le
below,
+ 10
_ - π -
- TO
_-
20 _
_- 30 --
-
40 ~ .
- 5 Π __
- 60
-
70
- κπ
-
etι
- ιαο
- ιιο
- ι z π ~
-130
20
dB
ϋά
© α
©
s!αίι~ ια
30
d
B
40 ιΙΝ.
10
dB
OUTPUT STEP
MTKNUATOR
POSITION
,
ACTIVE STEP ATTEN UA TOR PA DS ίΧ )
N
ote t
h
at no Step Αττeπυατπ r pads are active in the +10 d El m
and 0
dB
m
p
ositio
n
s . Α leveled PIN
d
io
d
e attenuator re
d
uces t
h
e output level by 10
dB
in all
p
ositions of the OUT PU
T Step Αττ e πυατοr below +10 dBm The
output level over
the
e
n
tire ra
n ge of +13 dB
m to 137 d βιπ including ari
11
d
B
VERN
I
ER
is controlled by
t h
e PIN leveler system,
T
h
e O
U
T
PU
T Step Atten
u
ator er
r
or is measured by an RE s ub
stitution
met
h
o
d
.
E
ac
h
υΓ t
h
e live pads in t
h
e O
U T PU T Ste p Α 2τ e ηυαιοι ίτ πιεα
s
u
red at 520 ΜΗτ . T
h
e seco nd
30
dB p
a
d
an
d
t
h
e 40
dB p
a
d
are measured
in com
b
i
n
ation wit
h
ot
h
er
p
a
d
s . Α refere
n
ce output level is set wit
h
α
p
ower meter . Α refe
r
ence t
r
ace is o
b
tai
n
ed wit
h
α s
p
ect
rum
analyzer an
d
α
sta
nd
ar
d
attenuat
u
r pad, T
h
e stan
d
ar
d p
a
d
is removed a n
d
t
h
e O
U T PU T
Ste
p
Atte
nu
ator position to be
m
easure
d
is substituted The spectrum
analyzer trace is ret
u
rne
d
to the refere
n
ce level by r
esetti
n
g t
h
e output
level . T
h
e res
u
lti
n
g i
n
str
um
e
n
t output level is m
eas
ur
e
d
and co
mp
ared to
t
h e origi n
al
p
ower meter re
f
e
r
e
n
ce level . Α 26
dB RE
a
mp lifier is required
To
b
oost signal levels b
elow t
h
e -60
d
8
m
level .
4-7