1
Introduction
10
Keysight U1818A/B Operating and Service Manual
Product Overview
The Keysight U1818A/B active differential probes provides high differential input
impedance from 100kHz to 7 or 12GHz. The new probes are designed to be
directly compatible with Keysight’s network, spectrum and signal source
analyzers. The U1818A/B probes provide high-frequency probing solution for R&D
and quality assurance engineers performing RF/Microwave and high-speed
digital design and validation in the wireline, wireless communications and
aerospace/defence industries.
Figure 1-1
Keysight U1818A/B active differential probe
Key features of Keysight U1818A/B active differential probes
– Broad bandwidth with flat frequency response, +/- 1.5dB, which ensures
excellent measurement accuracy and helps users achieve the best product
specifications
– Low noise floor, less than -130dBm/Hz at 10MHz to 12GHz, which allows
measurements to be made at a low signal amplitude
– Convenient biasing from Keysight’s RF and microwave instruments probe
power port or bench top power supply for user flexibility