Humminbird rf40 Specification Guide

Thank you for purchasing an RF40
SmartCast wireless sonar sensor from
Humminbird, America’s #1 Manufacturer of
quality consumer marine electronics.

531298-1-A

Use a heavy test line,
standard knots, and
tackle such as a swivel.

Handle the RSS by the antenna tower
when it has been in water.

The second leader hole is for using the
RSS as a float. Connect a lighter weight
hook line to this hole. Do not over-
weight the hook line as this will sub-
merge the RSS, causing signal loss.