When paired with different types of USB power sensors, the 2439D Microwave Power Meter enables accurate measurement of average and peak power. It supports the simultaneous connection of up to four power sensors for efficient, multi channel measurements. Power measurements can be performed rapidly via the front panel function keys or touchscreen, with results displayed as numerical values or waveforms.

The table below lists the USB Power Sensor types that are com patible with the 2439D Microwave Power Meter, along with their respective measurement modes. Select the appropriate USB Power Sensor based on your requirements.

Key Features

• Compact size, lightweight, and battery powered for use
• Connects up to 4 Power Sensors simultaneously for multi channel power testing
• Combines buttons and touchscreen for intuitive operation
• Rapid waveform stabilization via “Auto Setup” function
• Features GPIB, Ethernet, and USB interfaces for remote control operations

Compatible Power Sensors and Measurement Modes

Compatible with multiple high accuracy power sensors

The 2439D microwave power meter supports plug and measure compatibility with the following Power Sensor series:

• 87233 USB CW Power Sensors
• 87235 USB Average Power Sensors
• 87236 USB Peak/Average Power Sensors
• 87237 USB Thermocouple Power Sensors

Each power sensor is factory compensated, with all compensation data stored internally. This eliminates the need for calibration before measurement and ensures long term stability.

Rich Interfaces

The front panel of the 2439D features two channel interfaces, labelled A and B. A and B. The USB port in the bottom right hand corner can be shared with the C channel on the rear panel. However, only one probe can be connected to both the lower right USB port and the rear panel C channel simultaneously.

The rear panel of the 2439D has two channel interfaces: C and D, and the USB port can be shared with the D channel. On ly one probe can be connected to both the USB port and the D channel simultaneously.

Multiple measurement modes

The 2439D microwave power meter supports multiple measurement modes:

Averaging mode:
This mode enables precise average power measurements for continuous wave signals and various modulated signals, including common wireless signals such as 5G, LTE, Wi Fi and WLAN.

Trace mode:
Displays envelope power over time, presenting results as a combi nation of waveforms and numerical values. It supports the simultaneous measurement of up to 16 pulse parameters, with a maximum of eight parameters displayed concurrently on the panel.

Time Gated Mode:

This mode measures average power, peak power, peak to average ratio and minimum power within up to four independent time gates. The start position and duration of each gate can be defined, and measurements from two gates can be combined.

Burst Power Mode:
This mode enables the rapid capture and measurement of large cycle burst power by configuring a normal trigger mode.

Statistical Mode:
The CCDF statistical measurement mode calculates the percentage of power that exceeds or is equal to a specified threshold.

External Trigger Functions

By connecting an external trigger signal via a trigger cable, stable triggering of low power signals can be achieved and timing measurements can be initiated based on the external trigger signal.

Wider Operating Temperature Range

The 2439D microwave power meter and series USB Power Sensor s have a wider operating temperature range of 10°C to 50°C. They maintain the same power measurement accuracy at temperature extremes as in ambient conditions.

2U Standard Rack Mounts Kit

An optional 2U standard rack mount kit is available for the 2439D, facilitating integration into cabinets for building test systems.

Battery Option

The 2439D microwave power meter delivers at least 5 hours of continuous operation when fully charged and connected to two Power Sensors, making it ideal for field testing.

Extensive Programmable Interfaces

Standard LAN, USB and GPIB interfaces are included. The LAN interface fully supports Socket, VXI 11 and HISLIP protocols, as well as network auto discovery, enabling simple and efficient instrument netwo rking.