Fiber Optic Test Equipment

Fiber Optic Test Equipment
In today’s world of communications, bandwidth is the most sought after commodity. The wider the bandwidth, the more and faster data can be sent down the communications media. Fiber optics uses light through glass. Light is at such a high frequency that the bandwidth available for fiber optic communications systems is the greatest of all the communications media available in this day and age. JM Test provides quotes on new fiber optic test equipment units,… Continue Reading »

CALIBRATION TECH BRIEF: BK Precision 4010A – VCG Out of Tolerance


The Out of Tolerance Solution

We had two BK4010A generators in for calibration in the JM Test Alexandria Lab recently, and all parameters except one were well in tolerance.  The out of tolerance condition was the Voltage Controlled Generator(VCG) frequency section of the verification.

Briefly, the verification consists of the following:
Set the Frequency Range to 200 kHz, and the dial to 2 (setting the frequency to 200 kHz).  Apply a… Continue Reading »

Understanding Cable & Antenna Analysis Part 1

Cable and antenna system cell tower


The cable and antenna system plays a crucial role of the overall performance of a Base Sta­tion system. Degradations and failures in the antenna system may cause poor voice quality or dropped calls. From a carrier standpoint, this could eventually result in loss of revenue.

While a problematic base station can be replaced, a cable and antenna system is not so easy to replace. It is the role of the field technician to troubleshoot the… Continue Reading »

Choosing the Right Cable Test Tool

Guide to Choosing the Right Cable Test Tool to Meet Your Testing Needs

New cable test tools, designed to perform various tasks at various price ranges, are emerging at a rapid rate in today’s competitive market of cable test equipment. All cable test tools are useful for specific applications and users, but not all meet TIA/ISO performance standards and certification warranty requirements. It’s important to… Continue Reading »

The State of the Cabling Certification Industry

The New Normal: Multi-Everything

This white paper explores the state of the cabling industry – where it has been and where it is going. It evaluates what it takes to succeed in the face of an exponentially greater need for cabling contractors to manage multiple environments, media, standards, and technologies. In this new multi, multi, multi world – the new normal – what do cabling… Continue Reading »

Cable Testing Basics – Certification, Qualification and Verification

Cable Testing

Whether installing new cable, or troubleshooting existing cable, cable testing with a unit like a Fluke Networks DTX-1800 plays an important role in the process. Common tests for datacom cabling include length, wiremap, attenuation, NEXT, DC loop resistance, and return loss.

As networks evolve, so do the requirements of the cabling infrastructure to support them. New standards are continuously being developed to provide guidelines for cabling professionals when installing, testing,… Continue Reading »

What’s the #1 Cause of Fiber Network Failure?

What’s the problem?

Fiber basics

Fiber optic cabling carries pulses of light between transmitters and receivers. These pulses represent the data being sent across the cable.  In order for the data to be transmitted successfully, the light must arrive at the far end of the cable with enough power to be measured.  Light loss between the ends of a fiber link comes from multiple sources such… Continue Reading »