Fiber optic network provider Zayo and its network partner Infinera say they have successfully completed the longest known 800G optical wavelength in a commercial network. The 1,044.51 kilometer feat took place on a Zayo-owned fiber route between Springville, Utah and Reno, Nevada, which uses Infinera’s 800G coherent technology.

800G “has been limited by distance in the past,” the companies said in a release, adding that “larger wavelengths provide a significant extension of the network bandwidth needed to deliver high-definition content, 5G cell networks, IoT, remote working.” and more power.” Zayo is working to push them further into its optical network, saying it has made “major investments in the company’s fiber network in North America and Western Europe in recent months, including 31 long-haul networks.” high-capacity 400G routes and its first 800G interstate wave in the United States.

In other test news:

-800G is also in the crosshairs of Keysight Technologies, with the company this week announcing that it has the industry’s first compliance testing solution for validating 112 gigabits per second (Gbps) serial data center interface against the latest industry standards. “Interfaces that can support speeds of at least 100 Gbps and per lane are critical to realizing the benefits of 800G deployments,” the test company said in a release, adding that the new compliance testing solution will support optical transceiver manufacturers in their efforts. work to verify both accurately. the transmitter and receiver of designs that support connection speeds of 100 Gbps or greater.

Keysight also said this week that it has added new 5G test case support for carrier adoption testing with China Mobile.

– Rohde & Schwarz have unveiled an ultra-wideband signal amplifier that they say is an industry first. The R&S BBA300 has a range from 380 MHz to 6 GHz and R&S says the very broadband coverage “eliminates the need to switch instruments or bands during a test”. The amplifier comes in two models, from 1 GHz to 6 GHz and from 380 MHz to 6 GHz.

The company also launched a new LCR meter family for impedance testing this week, with a supported frequency range of 4 Hz to 10 MHz.

–Anritsu has announced a joint, integrated test solution with an EMITE reverb chamber, for assessing 802.11ax device performance in the 6 GHz band (with 2.4 GHz and 5 GHz already supported), also known as Wi-Fi 6E.

Anritsu also supports research and development in the field of emerging high-frequency component design, offering both its expertise, its vector network analyzers up to 220 GHz and its test facility in Morgan Hill, California. The new initiative aims to provide “extensive broadband testing” for manufacturers of high-frequency components, such as amplifiers, filters, transistors and chips, the company said.

Anritsu added that while high-frequency testing is “more essential than ever” given current 5G and future 6G R&D, not everyone has access to high-frequency broadband VNAs during their testing and design process. So it has a new program that will allow it to provide testing advice and technical teams to bring their devices to the Morgan Hill facility and use the VNAs – or engineering teams can ship their devices and Anritsu’s staff will run the tests and send the results .

“Anritsu recognizes the market conditions and has established a program to help companies develop active and passive devices for emerging high-speed applications. We will help perform fundamental measurements in our state-of-the-art lab in Morgan Hill using our broadband VNAs supporting 70 kHz to 110 GHz/125 GHz/145 GHz and 220 GHz,” said Navneet Kataria, Product Marketing Manager, VectorStar. VNAs at Anritsu.

-Is it really worth upgrading to that 5G device? Opensignal has a new analysis of apples-to-apples comparisons of 4G and 5G smartphones from the same brands, in half a dozen countries. Read more here.

-How is Starlink doing in terms of performance? Much better than any other satellite internet provider, according to Ookla. Full story here.

-If you didn’t attend this week’s RCR Wireless News webinar on optimizing and monitoring maturing 5G networks, you missed hearing from both AT&T and Viavi Solutions on successfully navigating the complexities of modern networks. You can watch that webinar on demand here.

Even more in-depth dissection of T&M topics will take place at our upcoming Test and Measurement Forum virtual event on April 5 – check the agenda and register now!

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