Power on/off
Switch the locator or transmitter on by pressing the
key.
To switch the locator or transmitter off, press and hold the
key until the screen blanks off.
NOTE: The locator will automatically power off after 5 minutes if no keys are pressed.
Keypad actions & shortcuts
Locator key actions
| Key | Short press | Long press |
 | Enter the menu. | Switch power off. |
 | Scroll through locate frequencies from low to high. | In active locating: SideStep (See iLOC section) When using Current Direction™ Perform a CD Reset. |
 | When using active frequencies: Toggle Peak, Peak+, Null, Broad Peak and guidance antenna modes. In Power Mode: scroll Power Filters™ for improved discrimination of parallel or strong power signals. | In Peak+ antenna mode: Switch between Guidance and Null arrows. |
 | Increase and decrease gain. RD8100 automatically sets gain to mid-point when pressed. | Rapidly increase and decrease gain steps in 1dB increments. |
 | Take a survey measurement and send over Bluetooth if paired. | |
 | Send an iLOC command to a paired transmitter. | Enter the transmitter power setting menu for use over iLOC. |
Transmitter key actions
| Key | Short press | Long press |
 | Enter the menu. | Switch power off. |
 | Scroll through locate frequencies from low to high. | |
 | Take voltage and impedance measurements using selected frequency. | Take voltage and impedance measurements at a standardized frequency. |
 | Adjusts the output signal. | Select standby /maximum standard power. |
NOTE: to scroll through frequencies from high to low, hold
while pressing the
button (applies to both locators and transmitters).
Antenna Modes
The RD8100 locator supports 5 antenna modes to suit your particular application or the local environment.
To scroll between locate modes, press the
key.
 | PEAK: For accurate locating, the peak bargraph provides a visual readout of the signal strength. The peak signal is found directly over the buried utility. |
 | PEAK+: Choose to combine the accuracy of the peak bargraph with Null arrows, which can indicate the presence of distortion, or with proportional guidance arrows for rapid line tracing - switch between them by pressing and holding the key. |
 | GUIDANCE: Proportional arrows and a ballistic directional 'needle' combine with audio left/right indication for rapidly tracing the general path of a buried utility. |
 | BROAD PEAK: Operating similarly to Peak mode, but giving a result over a wider area. Used to detect and trace very weak signals, for example very deep utilities. |
 | NULL: Provides a quick left/right indication of the path of a utility. As Null is susceptible to interference, it is best used in areas where no other utilities are present. |