The intervals between the three Byakugan activations had grown progressively longer-the first and second were less than five seconds apart, while the second and third were roughly fifteen seconds apart.
If Kabuto recognized that pattern, he would realize it was a signal pattern produced by someone running around, not an actual force splitting up.
"To keep the deception working-we need a fourth signal."
"The fourth signal can't come from the Byakugan." Guy stood up. "Neji can't activate it again."
"The fourth signal won't use the Byakugan.
"It'll use passive chakra field interference." Chisen laid his cane across his lap and located a small device he had fitted to it earlier aboard the boat-a miniature piezoelectric sensor he had removed from his rangefinder.
The sensor had originally been intended to measure vibration frequencies in rock, but its core component was an extremely thin piezoelectric ceramic plate that produced corresponding voltage changes when exposed to fluctuations in a chakra field.
Conversely, if he applied a modulated voltage to the Piezoelectric Ceramic Plate, it would radiate a simulated chakra field signal.
The signal was very weak and would never fool close-range sensing-but they did not need to fool close-range sensing.
They only needed to fool the bead sensors thirty meters away, beyond the rubble and layers of lead-bearing resin rock.
Chisen removed the piezoelectric ceramic plate from the sensor and connected it to the spare battery in his cane's handle.
He switched on the battery and tapped the ceramic plate lightly with his fingernail. The taps generated corresponding voltage fluctuations, which traveled along the wire into a small signal generator on the handle. The generator converted those fluctuations into chakra-band pulses and transmitted them.
"This signal is fake-there's no chakra information in it, just an empty carrier wave.
"But to the beads' sensors,