Tessco Wireless Journal April May 2015 Page 17 TESSCO Wireless Journal April-May 2015

April/May 2015 See TESSCO's entire product offering and your pricing on TESSCO.com or call TESSCO at 800.472.7373. 17 INSTALLATION, TEST & MAINTENANCE www.tessco.com/go/twj Turn your RF techs into fiber test experts-instantly Today, techs test RF and fiber. Equip them with RF/fiber instruments from JDSU: the world leader in fiber test. Get more info at www.tessco.com/go/jdsu RF, meet Fiber! Tower Climbs: Reducing the Risk With Radio Frequency Over Common Public Radio Interference (RFoCPRI TM ) The architecture of cell towers has changed. Failure to update test equipment to track these changes may lead to more climbs and higher costs. Unlike conventional cell towers, modern cell sites have a distributed architecture where the radio is divided into two main ele- ments. First, a baseband unit (BBU) sits at the bottom of the tower and performs radio functions on a digital baseband. Second, a remote radio head (RRH) is installed next to the antennas at the top of the tower to perform radio frequency (RF) func- tions in the analog domain. These units are connected by a fiber optic feed-line, with communication be- tween them often specified by the Common Public Radio Interface (CPRI TM ). Like most significant changes, this new architecture cre- ates new challenges-and new op- portunities-for tower technicians. Because the fiber feed-line car- ries digitized RF signal components encoded by CPRI, measurement access to analog RF signals is now available only at the RRH at the top of the tower. As a result, technicians equipped with legacy test equip- ment may have to climb the tower to conduct common maintenance and troubleshooting procedures. Conversely, the JDSU CellAdvisor JD745B base station analyzer equipped with new RFoCPRI TM tech- nology has the capability to extract RF components from CPRI so that spectrum and interference analysis procedures can be conducted from the BBU at the base of the tower. RFoCPRI lets technicians identify and fix signal interference problems at fiber-based cell sites faster, more easily and more affordably. More im- portantly, RFoCPRI improves safety by reducing risky tower climbs. With RFoCPRI-enabled CellAdvisor, technicians can comprehensively test RF from the ground, staying off the tower, improving safety, lowering maintenance costs, and reducing test times. Learn all about CPRI and new measurements that JDSU CellAdvisor conducts by download- ing the new white paper, "Radio Frequency Analysis at Fiber-Based Cell Sites." Visit www.tessco.com/go/jdsu. TESSCO No: 575724 JDSU CellAdvisor JD745B Base Station Analyzer List: $14,395.00 JDSU CellAdvisor JD745B Base Station Analyzer Compact, Lightweight and Rugged Power Sensor Well-Suited for Field Use The Bird Model 7022 Statistical RF Power is the only Thruline RF power measurement device that provides the statistical analysis capability required to accurately characterize the RF power features of any digi- tally-modulated signal employed in wireless communications systems. It measures power levels from 250mW to 500W over a frequency range of 350MHz to 6GHz and is an excellent choice for applications ranging from performance optimiza- tion to maintenance and trouble- shooting. It is extremely compact, lightweight and rugged, measuring only 5.8 x 4.8 x 1.3'' and weighing 1.5 lbs., making it well suited for use in the field. In addition to measuring the statistical properties of digital waveforms, it provides a complete range of other RF measurements in- cluding forward and reflected aver- age power, VSWR and return loss. The sensor also includes the latest version of Bird's Virtual Power Meter software, provides a comprehensive user interface for configuring measurements, viewing results and exporting data for trend analysis in spreadsheets. Why Statistical Analysis? The non-periodic, time-domain characteristics of digitally-modu- lated signals make it impossible to accurately characterize them using conventional RF power measure- ment techniques. Bench top instru- ments with statistical measurement capabilities have been available for some time, but the Bird Model 7022 is the first to incorporate them in a Thruline USB-connected power sensor suitable for use in any en- vironment from periodic field mea- surements to installation in base stations. The Model 7022 has three op- erating modes. In "conventional" mode, it functions much like a tradi- tional RF power sensor, measuring forward and reflected average power, VSWR and return loss. In "time-domain" mode, it displays time-domain waveform charac- teristics and provides markers to determine average burst power, peak power and other pulse-related parameters. In "statistical" mode, it measures peak-to-average power ratio versus the time as a percent- age that the waveform is at, or if it exceeds a specific peak/average power ratio. Visit www.tessco.com/go/bird. TESSCO No. 511055 Power Sensor, 350-6000 MHz List: $4,495.00 Power Sensor, 350-6000 MHz 3M Slim Lock Closure Family Expands Size Selection The 3M Slim Lock Closure Family now includes weatherproofing op- tions for DIN-716, the 3M Slim Lock Classic; for mini-din con- nectors, the 3M Slim Lock Mini, SLC-A-MINI; and for N-Type con- nectors, the 3M Slim Lock Nano, SLC-B-NANO. 3M Slim Lock Closures for wireless weatherproofing applica- tions are compact closures that pro- tects high-density RF connections at the cell site, even when those connections are close together. As a result of Multiple In Multiple Out (MIMO) antenna requirements for LTE and the trend toward multiband multiservice antennas, RF connector density on the antenna is becoming problematic for older, bulkier weath- erproofing solutions. The Slim Lock Closures are rated at -40 degrees C to 65 degrees C. These innovative, one-handed clo- sures are reusable, re-enterable and tool-less, making them a time- saving, cost-effective, easy-to-use solution for the wireless industry. Slim Lock Closures can be used at the RF connection points on both the antenna and Remote Radio Unit (RRU) in an FTTA installation. Air is displaced around protected interconnections using a highly compliant sealing gel technology providing a robust sealing interface. These closures can be opened and reused without disconnection of the network, thereby avoiding signal in- terruptions and additional replace- ment costs. The new Slim Lock Mini is designed for 0.69-0.79 inch neck diameters. The new Slim Lock Nano is designed for 0.56-0.66 inch neck diameters. Visit www.tessco.com/go/3m. TESSCO No. 520158 SlimLock Mini Closure List: $29.21 TESSCO No. 508296 SlimLock NANO Closure List: $29.21 SlimLock Nano Customer-Controlled Inventory Management Solution

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