2 – 6
Remote Operation
2.4.4
Amplifier commands
These commands provide control over the settings of the amplifier
circuitry. All of these commands are persistent, in the sense that the
module will restore the last amplifier configuration upon power-on
reset.
Reset
*RST
Reset the amplifier to default configuration.
In response to
*RST
, the amplifier settings become: unity gain, AC
coupling, input grounded, shield floated.
*RST
Example:
Gain
GAIN(?)
{
i
}
Set (query) the amplifier gain
{
to
i
=
(
1, 2, 5, 10, 20, 50, 100
)
}
.
GAIN?
Example:
50
Coupling
COUP(?)
{
i
}
Set (query) the amplifier input coupling.
COUP
1
sets AC coupling, while
COUP
2
sets DC coupling.
COUP 1
Example:
Input
INPT(?)
{
i
}
Set (query) the amplifier input.
INPT
1
sets the amplifier input to A,
INPT
2
selects A
−
B, and
INPT
3
grounds the amplifier front-end.
INPT 2
Example:
Shield
SHLD(?)
{
i
}
Set (query) the amplifier input BNC shield configuration.
SHLD
1
floats the A & B input shields, while
SHLD
2
ties the input
shields to amplifier ground.
SHLD?
Example:
1
SIM910
JFET Preamp
