<https://telecomlead.com/latest-news/anritsu-offers-oe-calibration-module-for-measurements-on-40-gbs-57011#primaryimage>
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"Anritsu offers O E calibration module for measurements on 40 Gb s"
<https://telecomlead.com/latest-news/anritsu-offers-oe-calibration-module-for-measurements-on-40-gbs-57011>