(Reuters) - Motorola Solutions Inc, a maker walkie-talkies and radio systems, reported a near-doubling in quarterly profit, helped by lower costs and higher sales of its products. Motorola Solutions - unrelated to cellphone and set-top box maker Motorola Mobility, which is owned by China's Lenovo - has been cutting costs aggressively in the face of sluggish sales. Motorola Solutions said earlier this year that private equity firm Silver Lake would invest $1 billion in the company to boost its services business, which also serves governments, businesses and public safety organizations.



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