American Tower Corporation, the company that wants to build a distributed antenna system (DAS) to improve cell phone coverage in the three up-Island towns, is close to filing formal plans with West Tisbury.

The company has scheduled a pre-application meeting with the town zoning board of appeals, in accordance with the town cell tower bylaw. The meeting will be held at 7:30 p.m. on Wednesday at the town hall.

Last month American Tower submitted revised plans to Chilmark’s wireless communications equipment and facilities plan review committee, fulfilling a requirement to submit plans to the town 30 days before a public hearing scheduled for Nov. 30. The company previously submitted plans in Aquinnah but has not yet filed plans in West Tisbury.

The DAS system relies on a series of radio access nodes connected to small antennas on poles to distribute cell phone signals. Revised plans call for 46 nodes to be built in the three up-Island towns: 20 in Chilmark, 20 in West Tisbury and six in Aquinnah. The system would use a combination of existing stub poles and new poles and would string fiber optic cable along approximately 1,200 existing utility poles owned by NSTAR.

The revised plan is essentially the same one submitted to Chilmark and Aquinnah earlier; locations of some of the nodes have been changed and a handful of nodes have been eliminated. T-Mobile has written a letter offering a “nonbinding expression of interest” in leasing some nodes in the system.