Agilent Technologies HP 83711A - Page 175

Special
Functions
ATTEN
HOLD ON/OFF
Disadvantages
When the
step attenuator
is locked,
the
output
power
dynamic
range
is
limited to
the vernier
range at
the current
output
frequency
.
Locking
the
step
attenuator typically
extends the
lower limit
of the
vernier
range
by
5
dB
.
The upper
limit of
the
vernier
range
is
the
synthesizer
maximum
output
power which
changes with
frequency
.
The
minimum
dynamic
range
when
the attenuator
hold function
is
on
is
typically
19
dB
.
N
O
T
E
The attenuator
hold function
on or
o will
not
activate
when
the
synthesizer
is
in
the
external
diode
detector
leveling
or external
power meter
leveling
mode
.
Equivalent
SCPI
Command
POW:ATT:AUTO
ON|OFF
turns
the
attenuator
hold
function
on
or
o.
When
the
parameter
is
set
to
\on",
the
attenu-
ator
hold
function
is
o
and
when
the
param-
eter
is
set
to
\o",
the
attenuator
hold
function
is
on.
See Also
4
POWER LEVEL
5
[SOURce[1]:]POWer:ATTenuation:AUTO
7-5