2010 Buyer's Guide: Sampling of communications test products from the past year
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-- Test & Measurement World, 8/1/2010 12:00:00 AM
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Sampling of products from the past year
BER tester reaches 25-Gbps data stream
The 25-Gbps BERTScope instruments from SyntheSys Research (which is now part of Tektronix) let you make physical-layer measurements on 100-Gbps Ethernet applications. The BERTScope 25000A and BERTScope Si 25000C can both measure BER and perform jitter analysis. The Si model also lets you stress receivers with sinusoidal jitter, random jitter, bounded uncorrelated jitter, and phase modulation. SyntheSys has also increased the speed of its BERTScope CR clock-recovery unit to 26 Gbps.
The testers include a linear equalization feature that removes distortion from an incoming data stream. With that feature, each instrument's clock-recovery unit can restore the clock embedded in the data. SyntheSys Research, www.bertscope.com.
Signal-generator family reaches 70 GHz
Anritsu's MG3690C RF/microwave signal generators allow engineers to conduct tests on microwave subsystems, components, and systems in the lab, and the fast 5-ms switching time also maximizes throughput in manufacturing applications.
Models in the MG3690C family generate signals from 0.1 Hz to 70 GHz. Individual instruments can produce baseband, IF, RF, and microwave signals. Options enable low phase-noise performance of –115 dB/Hz at 20 GHz at a 10-kHz offset. All models have a 0.1-Hz start frequency option, and they offer top frequencies of 10, 20, 31.8, 40, 50, or 70 GHz. Anritsu, www.us.anritsu.com.
Modules simplify 10-Gbps optical tests
Yokogawa has introduced a transceiver interface module and a signal generator module for its AQ2200
optical-test-system mainframe. The modules streamline testing of 10-Gbps XFP, SFP+, and XENPAK optical transceivers.
The AQ2200-642 transceiver I/F module combines an optical multimeter, a power supply, and a signal controller for an optical-module evaluation board. The power supply has one adjustable range and four fixed ranges that cover popular voltages used in optical modules. The AQ2200-651 signal generator module provides five channels of RF clock outputs at frequencies from 155 MHz to 180 MHz and 620 MHz to 720 MHz. Yokogawa, tmi.yokogawa.com.
LTE platform targets 4G system-level designers
Agilent Technologies now provides predictive products and algorithmic references for its SystemVue platform that are consistent with the LTE v.8.9.0 standard. The new products include the W1715 MIMO Channel Builder (a simulation block set for LTE architecture and receiver designers), the W1716 Digital Pre-Distortion (DPD) software (which assists in the transition from 3G to 4G by creating baseband signal-processing networks), the W1910/2 LTE Baseband Verification Library reference block set (which supports LTE v.8.9.0), and the W1912 LTE Baseband Exploration Library (an updated C++ source-code version of the W1910). Agilent Technologies, www.agilent.com.
Spectrum analyzers operate to 30 GHz
Based on the R&S FSV, the R&S FSVR from Rohde & Schwarz provides the functionality of both a signal analyzer and a spectrum analyzer. In real-time mode, the instrument detects everything from sporadic events to ultrashort signals. By capturing RF signals with a bandwidth of up to 40 MHz and computing up to 250,000 spectra/s, it enables engineers to analyze the behavior of signal sources when the frequency changes.
By providing measurements without blind times, the R&S FSVR offers an advantage to developers of RF components used in LTE, WiMAX, WLAN, Bluetooth, and RFID systems, and in general RF applications such as radar and frequency-hopping transmissions. Rohde & Schwarz, www.rohde-schwarz.com.
Platform monitors 10-Gbps IP networks
With the introduction of the Iris family, Tektronix Communications has enhanced the IP-network-monitoring capabilities of its GeoProbe platform. The product line includes the GeoProbe G10, the Iris Analyzer toolset, and the IrisView software.
The GeoProbe G10 is a 10-Gbps probe that handles high-bandwidth IP traffic. The Iris Analyzer toolset includes a protocol analyzer, a session analyzer, and a traffic analyzer; it provides layer 2–7 troubleshooting by characterizing IP traffic by links, applications, and servers. And the configurable IrisView software provides an integrated platform for all applications, including feeds to customer-experience management systems. Tektronix Communications, www.tektronixcommunications.com.
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