What is the maximum distance for the AD400-485 Pim remote antenna

The remote antenna kit is 15 feet long and tuned tat that length . The max distance the antenna can be remotely located is 15 ft. The cable cannot be shortened as it will affect the tune.
The cable supplied by Schlage are the only ones supported with the AD400-485 PIM.
Part number for the kit is ANT400-REM-I/O



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