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Changing Transmitter Frequency Band
Switch between frequency bands during pre-bore calibration or mid-bore to
overcome interference.
A frequency band remains selected on both the receiver and transmitter even
after a power cycle.
Above Ground – Power-On Method
Insert transmitter (Tx) batteries with the Tx pointing down (battery
compartment on top, shown at right) to power on in the Down band.
Insert batteries with the Tx pointing up to power on in the Up band.
Above Ground – Tilt Method
Let Tx sit powered on at level (0±10°) for at least five seconds
(sec.), tilt Tx up at approx. +65° (almost vertical) for 10–18 sec.,
then return to level for 10–18 sec., maintaining ±2 clock position
(CP) during this sequence. When the Tx changes bands, data
disappears from the receiver.
Below Ground (Mid-Bore) – 10/2/7 Roll Method
Disable Roll Offset (if enabled). Roll the Tx clockwise (CW) to a CP of 10±1 and
wait 10–18 sec., slowly roll CW to CP 2±1 and wait 10–18 sec., and slowly roll CW
to CP 7±1. The Tx changes bands within 20 sec. and data disappears from the
receiver. Re-enable Roll Offset if applicable.
Below Ground (Mid-Bore) – RRS Roll Method
Remain at any CP for at least 40 sec. to clear timers. Complete one full CW
rotation (±2 CP) within 1–30 sec., wait 10-18 sec., and repeat twice for a total of
three rotations (RRS3). The Tx changes frequency band within 60 sec.
Changing Receiver Frequency Band
If you change bands on your transmitter, you must also do so on the receiver. At
the Main menu, select
Settings
>
Transmitter Options
and choose the other
frequency band. Return to the Locate screen, where data should begin displaying
as transmission resumes in the new band.
