Comtech Telecommunications Corp., a Melville-based maker of satellite, communications and electronic warfare systems, said Friday it will buy more than 88 percent of the shares of a Maryland communications gear company. Comtech will spend $279 million for the shares.

The deal, which was delayed three times to extend the deadline for TeleCommunication Systems Inc. shareholders to tender their shares, will close on Feb. 23.

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Comtech said it will pay $5 per share.

Comtech’s stock rose 0.21 percent in midmorning trading, to $19.64.

Shares of TeleCommunication Systems ticked up by 0.02 percent, to $4.99.

Comtech first announced in November that it planned to acquire the maker of communications gear used in satellite and mobile networks. It initially set a Jan. 5 deadline to receive a majority of TeleCommunication Systems shares.

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By the most recent deadline at 5 p.m. Thursday, nearly 55.9 million shares had been tendered, Comtech said. Those who did not tender shares will have the right to the same $5 per share price. After the merger, TeleCommunication Systems’ shares will no longer be traded on the Nasdaq Stock Market, Comtech said.