File:1L40 2100MHz closeup.jpg

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1L40 spectrum analyzer plugin in 535A mainframe. Tuned to 2100MHz cellular band showing 3G data downlinks from various operators. From the right: Orange, T-Mobile, Plus and Play. Photo taken in Warsaw, Poland, January 2018.

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current04:34, 26 January 2018Thumbnail for version as of 04:34, 26 January 20183,000 × 4,000 (2.17 MB)Chrisjones (talk | contribs)1L40 spectrum analyzer plugin in 535A mainframe. Tuned to 2100MHz cellular band showing 3G data downlinks from various operators. From the right: Orange, T-Mobile, Plus and Play. Photo taken in Warsaw, Poland, January 2018.

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