Object

Android with Ultrasonic Transmitter

Equipped with ultrasonic transmission equipment broadcasting to Cyber Leader probes, serving as remote surveillance platform for Monarch's forces

5 appearances

Appearances in the Narrative

When this object appears and how it's used

5 moments

S19E8 · Four to Doomsday Part 4

Nyssa disrupts androids as Adric risks himself

Nyssa forcibly inserts her screwdriver and a pencil into the edge of the executioner discs embedded in two androids. The immediate feedback surge causes violent sparking and a surge of blue-white electricity, freezing the androids mid-motion. Her actions overload Monarch’s control system, abruptly disabling the devices.

Before: Two androids stood rigid, controlled by Monarch through functioning executioner discs embedded in their chests.

After: Both androids experience violent electrical overload, sparks flying, and their motion ceases as the discs short-circuit and fail entirely.

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S19E20 · Earthshock Part 2

Nyssa reveals ultrasonic threat in cavern

Nyssa's inspection of one android's internal components reveals its hidden function as an ultrasonic transmitter, its primitive design camouflaging advanced surveillance capabilities. The device's exposed circuitry becomes the focal point of the team's attention, its discovery directly precipitating the escalation from triumph to crisis.

Before: Perceived and dismissed as a combat android, its true function unknown and undetected

After: Identified as a sophisticated ultrasonic transmitter whose concealment has been exposed

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S19E20 · Earthshock Part 2

Ultrasonic signal exposes Cybermen ambush

The examination of the android’s remains reveals a concealed ultrasonic transmitter embedded within its chassis, transforming a defeated adversary into a critical intelligence source. This hidden mechanism had broadcast their position and actions back to the Cybermen, exposing the cavern as a deathtrap.

Before: Silent and seemingly defeated, one android harbored a functioning ultrasonic transmitter ready to trigger the Cybermen's ambush response

After: Exposing the transmitter incapacitates its tracking function, though the cavern's compromised tactical position remains dangerous

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S19E20 · Earthshock Part 2

Transmitter limits threaten critical mission

The transmitter embedded within the android serves as a critical bottleneck—not a flaw of the TARDIS but a finite device unable to receive or be amplified beyond its engineered capacity. Its limitation becomes the sudden axis of failure, pivoting the scene from hope to strategic reconsideration.

Before: Active and emitting a detectable signal within its designed range, but lacking power to influence the Cybermen’s systems

After: Still limited by its original design, now highlighted as the terminal weakness in the plan

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S19E20 · Earthshock Part 2

Cybermen recognize a traitor amidst the footage

The Executioner disc-laden android appears in the replay as both victim and data source. Its rigid posture and red-glowing eyes follow Adric's form, providing the surveillance angle that crystallizes his complicity. Once defeated, its chassis becomes a conduit for discovering the side tunnel and the hidden resistance it concealed.

Before: Decommissioned after earlier battle, repurposed for data extraction

After: Static data source whose surveillance angle reveals critical intelligence

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