Zygon Invasion Jamming Signal

A directional electronic pulse emitted by the Zygons' stolen equipment, designed to flood human radar and surveillance networks with counterfeit noise. It manifests as sharp white bursts on tactical displays, momentarily distorting the edges of landmasses and masking the spaceship's slow ascent from Loch Ness. Broton activates the signal by pressing a single recessed key on a rugged control panel, its activation accompanied by a high-pitched wheeze before the static swallows the room's comms entirely.

2 appearances

Purpose

To conceal Zygon forces and their spacecraft from human detection during infiltration and deployment phases of their invasion plan.

Significance

Represents the Zygons' reliance on technological cover over direct confrontation, highlighting their strategic preference for subterfuge. The Doctor immediately targets this dependence in his psychological assault on Broton, exposing how secrecy itself has become a liability.

Appearances in the Narrative

When this object appears and how it's used

2 moments

S13E4 · Terror of the Zygons Part 4

Doctor exploits Broton’s secrecy flaw

The jamming signal is activated by the Zygon at Broton’s command immediately before the Doctor’s taunts. The signal floods human radar with counterfeit noise, masking the spaceship’s ascent, but its mechanical activation becomes secondary to the verbal duel that follows.

Before: Inactive, awaiting Broton’s command to transmit.

After: Activated, emitting directional electronic pulses to disrupt human surveillance, though its immediate role is overshadowed by the confrontation.

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S13E4 · Terror of the Zygons Part 4

Broton activates signal to mask invasion movements

The jamming signal is activated by the Zygon operative under Broton’s command, flooding human radar and surveillance with counterfeit noise to mask the Zygon invasion fleet’s movements. It functions as a critical tactical device to prevent detection during approach.

Before: Deactivated, stored as a contingency tool within the command console.

After: Activated, emitting directional electronic pulses that distort radar and communication systems, temporarily severing comms in the chamber.

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