LSProbe 2.0, 9 kHz – 18 GHz


LSProbe 2.0 Probe System

The LSProbe 2.0 Field Probe is a next-generation, high speed, high accuracy and high dynamic range electric-field probe. Its frequency range is 9 kHz to 18 GHz. The Field Probe’s six-monopole antenna design ensures isotropic operation at all frequencies.
LSProbe 2.0 Field Probe employs fine-grained compensation of linearity, frequency and temperature, guaranteeing accurate measurements from less than 1 V/m to at least 1 kV/m. A dynamic range of 60 dB is achieved for all frequencies.

LSProbe 2.0 Field Probe contains a low-frequency and high-frequency detector for each of the six monopoles. The detectors can be operated continuously at 500 kSamples/s or in burst mode at 2 MS/s. This enables direct radar pulse measurements and accelerated, frequency sweep-based measurements.

A single axis, continuously sampling mode, operating at 2 MS/s, can be used for Equivalent Isotropically Radiated Power (EIRP) measurements of IoT products without antenna connectors in accordance with EN 300 328 and EN 301 893.

Laser-powered operation eliminates battery recharging and replacement. Extensive in-house calibration data are provided with each field probe and is handled automatically by the LSProbe Software (TCP Server and GUI).

The LUMILOOP LSProbe 2.0 E‑Field Probe System consists of an LSProbe 2.0 E‑Field Probe with a fixed length of fiber optic cable, a CI-250 Computer Interface (CI) and optional accessories, such as probe stands for repeatable and quick measurement setup.

LSProbe 2.0 System

LSProbe System with all cables

LSProbe 2.0 System Scope of Delivery

LSProbe 2.0 E‑Field Probe with 5m permanently attached optical fiber cable
– 1x 15m Fiber extension cable
– 3x Sacrificial cable kit

LSProbe Computer Interface CI-250
– Control unit with power supply
– USB 2.0 cable
– ST/FC fiber optic connectors
– Can be upgraded to CI-250+ (adds ethernet and touchscreen interfaces)

LSProbe Software Package on USB Drive
– Calibration data
– User’s manual & Quick Start Guide
– LUMILOOP TCP server and graphical user interface
– Third party EMC software drivers and programming examples
– Calibration data import tool CalImport

LSProbe System Carrying Case

CI-250+ Computer Interface



CI-250+ with 19″ Rack Kit


The CI-250+ is equipped with a 4.3″ touchscreen and ethernet interface. It runs the LSProbe TCP Server and a simplified GUI.

CI-250+ has an internal power supply. Fiber optic connection as well as triggering and synchronization options are unchanged compared to a classic CI-250.

Dimensions: width x height x depth = 200 x 88 x 150 mm (fits in 2 19″ height units, rack mount kit available)

The Computer Interface CI-250+ is an optional upgrade of the LSProbe’s CI-250. It can only be ordered combined with one of the following part no.: 1111, 1112, 1113, 1120

  • Frequency Range 9 kHz to 18 GHz
  • Damage Level
    9kHz – 1GHZ >25 kV/m
    1 GHz – 18GHz >5 kV/m
  • Resolution <0.05 dB
  • Amplitude Accuracy Accredited Cal. at AMETEK Germany
    10 kHz … < 10 MHz ±1.3 dB
    10 MHz … 1 GHz ±1.5 dB
    >1 GHz … 18 GHz ±1.0 dB
  • Typical Worst-Case Isotropy Error
    @ 1 GHz ±0.5 dB
    @ 6 GHz ±1.5 dB
    @ 18 GHz tbd
  • Linearity Error ±0.2 dB relating to 10 V/m