Resources

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26-06-2020

VIAVI Solutions DAS Deployment Overview

The introduction of new cellular technologies has significantly improved spectral efficiency; however, data demand has outpaced the spectral efficiency benefit. Cellular spectrum holdings cannot keep up with mobile data growth. For operators to ...

26-06-2020

VIAVI Solutions Finding the Cause of Interference Affecting an LTE Physical Resource Block

A customer in Europe was experiencing single-tone interference that was continuously affecting a specific LTE physical resource block (PRB). The interfering signal could be easily observed at the radio unit (RU) on the tower, but was very ...



26-06-2020

VIAVI Solutions High RTWP Problem Solved with InterferenceAdvisor

There were several reports from a Taiwan operator of high RTWP problems (high noise level in the uplink band) from several areas in city of Taipei. The Viavi team worked with the operator to resolve the problem by locating the interference source ...



26-06-2020

VIAVI Solutions Importance of Testing Public-Safety Mobile Networks

Public Safety communication has evolved over the last couple of decades. Significant strides have been made in the public safety community to ensure first responders are provided with the right communication tools to improve their emergency ...



26-06-2020

VIAVI Solutions LTE-TDD Interference Analysis Using CellAdvisor

This document explores the different methods available to detect and analyze interference in an LTE-TDD channel using Viavi Solutions® CellAdvisor. CellAdvisor has different modes of operation, such as spectrum, time-domain, gated sweep ...



23-06-2020

PCTEL Antenna Solutions for Precision Agriculture

Driven by wireless technology, agriculture continues to evolve into an even more precise industry. During the past several years, Precision Agriculture systems have incorporated GNSS and other wireless communications technologies ...

23-06-2020

PXI-based Radio Communications Testing

Reduce the size of your test bench at the same time as you reduce the cost of your test bench, while also facilitating seamless automation. Using Aeroflex's PXI line of test equipment in combination with other test equipment, such as Aeroflex's popul



23-06-2020

Using the Aeroflex 3900 Series for Remote Site Monitoring

Aeroflex understands the needs of today's engineers and the test requirements for tracking down interference in RF systems. With Aeroflex's new innovative test platform, the Aeroflex 3900 Series, affordable and automated site monitoring is now ...



23-06-2020

Understanding and Testing P25 Phase 2 TDMA

P25 Phase 2 is a land mobile radio standard developed by the Telecommunications Industry Association (TIA) TR8 subcommittee to meet requirements to develop a mission critical land mobile radio standard that uses the RF spectrum more efficiently...



23-06-2020

Understanding P25 Modulation Fidelity

The objective of this application note is to clarify how P25 C4FM modulation works, and to explain the critical components of the modulation and how the Aeroflex 3920 provides the best means to accurately analyze P25 signals ...



23-06-2020

Using the 3920 for P25 Performance Testing

The objective of this application note is to show the advantage of using the Aeroflex 3920 Radio Test Set for P25 Performance Testing. The 3920 can be an integral part in reducing the complexity and cost of performing these tests ...



23-06-2020

DVTEST dbGUARD or dbCOUPLER Programmable Positioning Systems

Over The Air (OTA) testing of devices requires exact positioning of the UUT with respect to the antenna coupler. Situations requiring different UUTs to be tested in an enclosure typically lead to many different setup jigs and cumbersome pegboards...