Agilent Technologies HP 83711A - Page 174

Special
Functions
ATTEN
HOLD ON/OFF
Applications
The attenuator
hold function
can be
used
to
extend
the
vernier
range
to
prevent the
step attenuator
from switching
between two
attenuator
settings
.
Locking the
step attenuator
keeps the
attenuator from
switching
between
the two
levels as
leveled
power
is
varied
above
and
below
the
threshold
level, thus
saving wear
on
the
attenuator
.
Refer
to
the
specication
table
in
Chapter 4
for the
level
at
which
the
attenuator
switches
.
A
dvantages
Locking
the
step
attenuator
prevents
switching
between
two
levels
when the
leveled
output
power
is
set
near
an
attenuator
switching
threshold.
7-4