> ## Documentation Index
> Fetch the complete documentation index at: https://c5tako.ziphers.space/llms.txt
> Use this file to discover all available pages before exploring further.

# SUB-GHz

> Receive, analyze, save, and replay signals through a CC1101 module.

The `SUB-GHz` menu appears only when the device detects a **CC1101** module. Use it only with devices and frequencies you own or are authorized to test, and check local radio regulations before transmitting.

<Warning>
  Unauthorized interference, interception, or replay may be illegal. Use these tools only in a controlled test environment.
</Warning>

## Choose a menu

<CardGroup cols={2}>
  <Card title="Read" icon="radio-receiver">
    Receive activity on the configured frequency
  </Card>

  <Card title="Decode" icon="scan-line">
    Receive and display supported decoded signals
  </Card>

  <Card title="Read RAW" icon="audio-waveform">
    Capture raw pulse timings
  </Card>

  <Card title="Saved" icon="folder-open">
    Open captures stored in `/c5tako/subghz`
  </Card>

  <Card title="Add Manually" icon="keyboard">
    Create a raw capture from signed microsecond timings
  </Card>

  <Card title="RF Analyzer" icon="chart-no-axes-combined">
    Inspect activity around the selected frequency
  </Card>

  <Card title="Radio Settings" icon="sliders-horizontal" href="/en/features/settings-device#radio">
    Select a preset frequency or enter a custom MHz value
  </Card>
</CardGroup>

<Info>
  A SUB-GHz file opened from `Saved` provides `Replay`, `Read`, `Rename`, and `Delete` actions.
</Info>