The customer reported that his operational receiver group (org) is giving signal loss on multiple channels.Customer sent the unit in for evaluation and repair.The unit was cleaned and evaluated.The reported problem of "the device gives signal loss" could not be duplicated through testing, troubleshooting, and extended operation of the device.
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Details of complaint on (b)(6) 2017 customer reported that org receiver was experiencing signal loss on channels e138, e146, e150.Customer stated they tested the org using a different antenna.Service requested: repair.Service performed: repair.Investigation result: device was put into service on 4/24/2013.Service history shows this is an isolated incident.Nka repair center evaluated the device.The reported signal loss issue could not be duplicated.The receiver relayed data to the monitoring cns as intended.Separately, firmware on the receiver cards (zr-920p) were updated to improve spo2 signal.This was not related to the signal loss under channels e138, e146 and e150.Since the issue could not be duplicated at nka, and information regarding the environment in which device operated in is not available, the root cause could not be determined.Correction: f9.Approximate age of device: incorrectly calcuated.
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