This read-only integer reports the highest receive signal level, in dBm, the link interface recorded at any point during the previous 24-hour period. An engineer uses this daily peak figure to understand the best-case signal condition achieved that day, useful alongside the daily minimum for gauging total signal variation. For example, a wvlinkTotalMaximumRSL that's only marginally higher than the terminal's typical minimum would indicate the link ran consistently poor throughout that entire day rather than just dipping briefly.