Specifications

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Smart Measurements for Transmitter Systems
Commonly needed transmitter measurements are built in and can be accessed easily. These include field strength, occupied
bandwidth, channel power, adjacent channel power ratio (ACPR), and emission mask.
Occupied Bandwidth
Adjacent Channel Power Ratio
Occupied Bandwidth
This measurement determines the amount of spectrum used by a modulated
signal. The Spectrum Master allows you to choose between two different
methods of determining bandwidth: the percent-of-power method or
the “x” dB down method.
Adjacent Channel Power Ratio
Adjacent Channel Power Ratio is a common transmitter measurement.
High ACPR will create interference for neighboring carriers. This
measurement can be used to replace the traditional two-tone
Intermodulation Distortion (IMD) test for system non-linear behavior.
Field Strength Measurements
The Spectrum Master can determine the effects of electromagnetic fields
caused by transmitter systems. Specific antenna factors of the connected
antenna are automatically taken into account, and field strength is displayed
directly in dBµV/m. The Spectrum Master also supports a wide range of
directional antennas. If you are using a different antenna, Master Software
Tools can be used to edit the antenna list and upload the custom antenna list
to the instrument to accurately measure the maximum field strength.
Emission Mask
The emission mask is a segmented upper limit line that will display
frequency range, peak power and frequency, relative power and pass/
fail status for each segment of the mask. The emission mask must have
at least two segments. Emission mask adjusts to the peak power value of
transmitted signal level per government emission mask requirements.
Master Transmitter Testing
Emission Mask
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