Self-hosted radio

VHF Scanner

Continue to User Profile for testing

Continuous channel

Listen Live

Everything currently received by the scanner.

Two-tone channel

Arm Alert

Connected silence until a configured two-tone page is detected.

Choose agencies for this profile
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Selections are saved only on this device until account sign-in is added.

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Most recent detection

Last page

No page detected since startup.

seconds

Every detected pair is saved with a short pre-roll so the tones are included.

recordings

When this limit is reached, each new completed clip automatically deletes the oldest clip.

Page archive

Recorded pages

Only two-tone pages and the selected amount of following audio are recorded.

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Detection directory

Two-tone agency list

Save detected or manually entered tone pairs here and choose which agencies are available to user profiles.

Choose which administrator-approved agencies are armed for this profile. Directory names and frequencies are managed by the administrator.

Partial-page safety

Contextual recovery rules

Recover one known agency tone only after another complete directory pair on the same input. These rules can open Arm Alert, but partial tones never enter pager-frequency averages.

Pager programming analysis

Programming Reference

Compare each input's repeated scanner measurements with pager frequencies you know are correct. Several trusted agencies can build an advisory correction profile for estimating other pager tones. This never changes alert detection, its tolerance, or saved audio.

ToneAlert detectionKnown pager frequency

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