1. General Information
1.1. Product Description
The MOHR CT100B TDR Metallic Cable Analyzer uses a form of closed-circuit radar known as
time-domain reflectometry (TDR) to test cables for defects or “faults”. The instrument applies a
fast rise time broadband step signal to the cable under test and then measures the reflected
voltage at very short time intervals. The resultant TDR trace allows the operator to identify
changes in impedance along the length of the cable indicating the presence of faults such as
opens, shorts, kinks, defects in the shield or conductor, foreign substances such as water,
thermal damage, among others. The CT100B provides sophisticated signal processing software
that lets users analyze the frequency-domain characteristics of the TDR trace, replacing a
handheld vector network analyzer (VNA) or frequency domain reflectometer (FDR) for many
applications. With the CT100B TDR Cable Analyzer a user can detect, localize, and
characterize almost any cable fault in both the time and frequency domains.
Please note that with the release of the CT100B, the CT100HF instrument has been updated
with the CT100B hardware, firmware, and software improvements. Any reference to the
CT100B in this manual also applies to the CT100HF unless specifically stated.
1.2. Power Requirements
The CT100B may be operated using either the supplied AC adapter or internal NiMH batteries
(for a minimum six hours operating time, typical use). The internal NiMH battery charges
under AC during normal operation.
The external AC power adapter (pn CT100-AC-PS) operates on 100-240V AC at 50-60 Hz and
draws a maximum current of 1.5A. Use of a grounded AC socket (US 3-prong or EU 3-prong) is
essential for safe operation of the CT100B with the included AC power adapter. Review the
section before operating the CT100B.
1.3. Options and Accessories
Options and accessories available for the CT100B are described in Section 6,
CT100B TDR Cable Analyzers Operator’s Manual
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