Product Overview

The Ceyear 3681 series cable and antenna analyzer has a frequency range of 300 kHz to 9 GHz and can test parameters including cable loss, VSWR and return loss. It can also identify minor issues through its VSWR or return loss fault location function, thereby eliminating potential faults.

The 3681B features a compact, lightweight design for easy transport and operation in confined spaces. With a 10.1-inch LCD touchscreen, it provides an intuitive interface for enhanced field testing efficiency.

 Ceyear 3681B series cable and antenna analyzer

The 3681BU cable and antenna analyzer works based on USB 3.0 bus communications. Compact, efficient and flexible, it is ideal for applications requiring high mobility and portability in test systems, such as communication and RF component testing. It is also applicable in scenarios requiring high automation and test efficiency.

 Ceyear 3681BU series cable and antenna analyzer

Main Features

  • Practical antenna and feeder analysis

The return loss and 1-port cable loss can be tested
The distance to fault (DTF) function is provided
The TDR cable analysis capability can be used to determine the location and nature of the fault (e.g. short circuit or open circuit)

  • Supporting embedded calibration

Test efficiency can be improved by implementing one-button calibration without the need for external calibration kits

  • Flexible optical time domain reflectometer and optical power meter

Optical time-domain reflectometer:
Fiber type G.652, single mode 9/125, measured
Wavelength 1310nm±20nm & 1550nm±20nm, dynamic range value 38dB (typical)

Optical power meter:
Calibration wavelength: 850/980/1270/1300/1310/1490/1550/1577/1625/1650nm,
Measurement range: -50dBm ~+20dBm (typical) (single optical port shared with OTDR)

  • Convenient use

10.1" LCD and capacitive touch screen are provided, and marker dragging is supported

8 independent cursors, 4 display windows, 8 display traces

  • Good field adaptability

Operating temperature: -10°C - 55°C, storage temperature: -40°C - 70°C
3681B weight (excluding battery): approx. 1.3kg
3681BU weight: approx. 0.4kg
Three display modes, including Default, Outdoor, and Night mode
Built-in high-capacity lithium-ion battery, a typical battery life of 4 hours

Extensive test function modes and options

Antenna and feeder analysis:

The 3681 cable & antenna analyzer supports measurement of return loss, VSWR, impedance, cable loss, and distance to faults of cables, feeders, and other DUTs, among which the measurement of return loss and distance to faults will help the user determine the specific causes of performance degradation of the antenna and feeder system. The antenna and feeder analysis function supports TDR test to analyze the types of cable faults. In addition, the instrument is also built in with some commonly used parameters of cables and feeders for ease of use.

USB power measurement (option):

The 3681B cable & antenna analyzer can be used to measure continuous wave signal up to 67GHz when connected to external Ceyear 87233C/D/E/F/LUSB continuous wave power sensors or 87235B/C/D/F/FA/H/LUSB average power sensors.

USB peak power measurement (option):

The 3681B cable & antenna analyzer, when connected via USB interface to external Ceyear 87234D/E/F/L USB peak power sensors and 87236D/E/F/L USB peak power sensors, can be used to measure RF/microwave signals up to 67 GHz, enabling pulse power measurements with a large dynamic range.

Optical time domain reflectometer (option):

The optical time-domain reflectometer of the 3681B cable & antenna analyzer, when connected to an external USB optical time-domain reflectometer, can be used to locate and analyze optical fiber fault points and measure optical power.

Typical applications

Field comprehensive performance evaluation of electronic equipment

The 3681B cable and antenna analyzer has many advantages, including a high performance index, fast sweep speed and simple operation. It is handheld, small and lightweight, and has excellent environmental adaptability. It can be powered by batteries and is ideal for the field installation, commissioning and maintenance of electronic equipment.

Multi parameter testing for cable TV, wireless communication, etc.

The 3681 series cable & antenna analyzer is applicable to operators and equipment manufacturers in cable TV, cellular phone systems, digital mobile telecommunication operators and equipment manufacturers for on-site integrated tests of antenna and feeder contact performance, component S-parameters and feedthrough power.

Building of multi channel S11 parameter test system

The 3681BU cable & antenna analyzer is a compact, efficient and flexible USB bus module product. It can be used to build multi-channel S11 parameter test systems on production lines, providing users with a low-cost S11 parameter test system integration solution.

Where to Buy:

🔵 3681B/BU Cable & Antenna Analyzers are now available for order from the official Ceyear distributor in Ukraine – SEA Company (tmm@sea.com.ua).