User Guide
Remote Control User Guide for the MX / MBX / TLX1 / TLX2 Series Chapter 2: Supported Commands
Page 6 TTN116413-D04
2.2. RF Amplifier Commands
The MX series of instruments include several that have a built-in RF amplifier, and the following commands apply
only to these instruments. The amplifier type is digital (limiting) in some of these products, such as the MX10A,
MX40A, MX10B, MX40B, MX10C, and MX40C. In other products, such as the MX35D, MX35E, and MX65E the
amplifier type is linear (analog). Only digital RF amplifiers have crossing point and swing settings, and only these
RF amplifiers can operate in either analog or digital modes. In contrast, the gain may be set only for linear RF
amplifiers. Unless otherwise noted, the following RF Amplifier commands apply to both amplifier types.
Command Syntax Description
Set Crossing
Point
(Analog Mode)
AMP:CROSSing:ANAlog: N N is a floating point value between -1.0 and 1.0, inclusive.
This parameter applies to the digital amplifier operating in
analog mode and determines the location of the crossing
point. N has no units; -1.0 corresponds to the maximum
possible negative offset, and 1.0 corresponds to the
maximum possible positive offset. The available range,
which depends on the amplifier’s voltage limits and the
current AMP:SWING setting, may be smaller than this full -
1.0 to 1.0 range. When this is the case, N values within
±1.0 but exceeding the currently available range will set the
crossing point to the closest permitted value. This
command is not available for instruments with linear
(analog) amplifier types.
Get Crossing
Point
(Analog Mode)
AMP:CROSSing:ANAlog? Returns a floating point value between -1.0 and 1.0,
inclusive. This value has no units and corresponds to the
current crossing point for the digital amplifier when it
operates in analog mode. This command is not available
for instruments with linear (analog) amplifier types.
Set Crossing
Point
(Digital Mode)
AMP:CROSSing:DIGital: N N is a floating point value between -1.0 and 1.0, inclusive.
This parameter applies to the digital amplifier operating in
digital mode and determines the location of the crossing
point. Please see AMP:CROSS:ANA for additional
information. This command is not available for instruments
with linear (analog) amplifier types.
Get Crossing
Point
(Digital Mode)
AMP:CROSSing: DIGital? Returns a floating point value between -1.0 and 1.0,
inclusive. This value has no units and corresponds to the
current crossing point for the digital amplifier when it
operates in analog mode. This command is not available
for instruments with linear (analog) amplifier types.
Set Gain AMP:GAIN: N N is a floating point value between 10.0 and 23.0 in
decibels. This value sets the gain of linear (analog) type
amplifiers. This command is not available for instruments
with digital (limiting) or fixed gain amplifier types.
Get Gain AMP:GAIN? Returns a floating point value between 10.0 and 23.0 in
decibels, which corresponds to the current gain of the
linear (analog) type amplifier. This command is not
available for instruments with digital (limiting) or fixed gain
amplifier types.
Set Amplifier
Mode to Analog
AMP:MODE: 1 Sets the operation of the digital amplifier to analog mode.
This includes setting the crossing point to that currently
specified for analog mode operation (AMP:CROSS:ANA)
and applying the maximum possible swing. This command
is not available for instruments with linear (analog) amplifier
types.