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The HP EPM-441A is a single-channel, programmable power meter. It is fully compatible with the HP 8480 series of power sensors and the ECP series of power sensors. Depending upon which sensor is used, the HP EPM 441A can measure from –70 dBm to +44 dBm at frequencies from 100 kHz to 110 GHz. Designed for bench and automatic test equipment (ATE) use, the EPM-441A makes fast (up to 200 readings per second with ECP series sensors), accurate and repeatable power measurements. The EPM-441A power meter has a high-resolution LCD display with LED backlighting and contrast control. This allows users to see the power readings from a distance, at a wide viewing angle and in a variety of lighting conditions. The user interface is easy to learn and use, with hardkeys for the most frequently used functions, and softkey menus to simplify instrument configuration for different applications. Ten instrument configurations can be saved and recalled, reducing the need to repeat setup sequences. Because the EPM-441A power meter is designed to be code-compatible with the previous-generation HP 437B power meter, a user’s investment in automatic-test procedures, software generation and verification is protected. Front and rear panel bumpers protect the EPM-441A from everyday knocks. The meter weighs only 4 kg (9lbs), and a bail handle makes it easy to carry. Specifications. Frequency Range: 100 kHz to 50 GHz and 75 GHz to 110 GHz, sensor dependent. Power Range: –70 dBm to +44 dBm (100 pW to 25 W), sensor dependent. Power Sensors: Compatible with all HP 8480 series and HP ECP series sensors. Display Units: Watts or dBm (Absolute), Percent or dB (Relative). Display Resolution: Selectable resolution of 1.0, 0.1, 0.01, and 0.001 dB in log mode, or 1 to 4 digits in linear mode. Default Resolution: 0.01 dB in log mode, 3 digits in linear mode. Instrumentation Accuracy Absolute: ± 0.02 dB (log) or ± 0.5% (linear). Add the corresponding power sensor linearity percentage. Instrumentation Accuracy Relative: ± 0.04 dB (log) or ± 1.0% (linear). Add the corresponding power sensor linearity percentage. Opt 002, Supplies rear-panel sensor input (power reference calibrator is on front panel). Opt 003, Supplies rear-panel sensor input (power reference calibrator is on rear panel). Opt 004, Deletes the HP 11730A sensor cable.
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