Signal correction is performed by determining an offset error based at least in part on a first portion of a signal within a first amplitude range. The attenuator is controlled by a control signal from the towed decoy system and adjusts the link gain based on this feedback control signal to compensate for link loss, which is highly variable and may include losses as a function of cable, connectors and splices, and to maintain a relatively constant gain. By wearing an earphone or an ear-bud device the user is capable of dealing with voice conversations while working with data centric information related to the current caller. The implant may be implanted by use of a delivery device comprising a handle and rodlike instrument,with a tip for insertion into the tube passage of the implant. Next, the proximate WAP receives a request from a guest device to access the TNATS through the proximate WAP. Other processes and systems are presented.