At 8.5 kg, the U3661 is the world’s lightest microwave spectrum analyzer, meeting the diverse needs of a wide range of communication systems.

The U3661 not only enhances the basic performance of a spectrum analyzer, but also includes many standard features such as power calculation and high-speed scanning.

The U3661’s compact, lightweight design and three-way power supply system, including batteries, make it the perfect analyzer for field measurements.

The unit also has a built-in RC232 interface for connection to a personal computer, facilitating flexible data management using standard memory cards.

Excellent basic performance and measurement applications

Wideband scanning

The U3661 can continuously scan a frequency bandwidth from 9 kHz to 26.5 GHz on a single screen. Harmonic measurements or spurious signal measurements over a wide bandwidth can be easily compared relative to the fundamental.

Outstanding signal purity

The U3661’s local oscillator is equipped with a precision synthesizer that achieves a signal purity of -100 dBc/Hz (at frequencies ≤3.2 GHz and an offset frequency of 10 kHz). It meets a variety of needs, from adjacent channel leakage power measurements at radio facilities to microwave equipment evaluation.

Occupied frequency bandwidth

The U3661 calculates the bandwidth for a specified power ratio based on the measured spectrum data and then displays it with a marker. In addition, it displays the occupied frequency bandwidth (OBW) and carrier frequency (FC).

Adjacent Channel Leakage Power

The U3661 obtains the total power from the measurement data on the screen. It then integrates the power over the specified bandwidth (BS) to obtain its ratio to the total power.

ACP POINT and ACP GRAPH measurement methods can be selected.