HackRF Parrot
# HackRF Parrot
**HackRF Parrot** is a mobile application that allows you to **record and retransmit signals using a HackRF SDR device**. You can capture IQ data from a frequency of your choice and replay it, effectively “parroting” signals.
> ⚠️ **Important:** Use this app responsibly and in accordance with local regulations. Unauthorized transmission on certain frequencies can be illegal.
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## **Features**
* Connects to a HackRF SDR device via USB OTG.
* Record IQ data from a selected frequency.
* Transmit previously recorded IQ files.
* Adjust RX/TX gain and sample rate.
* Built-in file library to manage recordings.
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## **Getting Started**
1. **Connect your HackRF**
Plug your HackRF device into your Android device via USB OTG. The app will automatically detect it.
2. **Set Frequency**
Enter the desired frequency (in MHz) in the **Frequency** field. Example: `433.92` for 433.92 MHz.
3. **Adjust Sample Rate (MHz)**
Use the slider to set the sample rate. HackRF supports **2–20 MHz**. Higher sample rates capture more data but generate larger files.
4. **Set Gain (RX/TX)**
Adjust the **Gain slider** to control the HackRF receiver and transmitter amplification. Typical values are **20–35 dB**.
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## **Recording a Signal**
1. Press the **Record** button.
2. The app will start receiving the signal. The status bar will display the recording progress in MB.
3. Press **Stop** to finish recording.
4. The IQ data is automatically saved to the app’s library with a filename format:
```
<frequency>MHz_<sampleRate>MHz_gain<gain>_<timestamp>.iq
```
5. The saved file will now appear in the **IQ File Library** at the bottom of the app.
> Tip: Long-press on a file to delete it if no longer needed.
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## **Transmitting a Signal**
1. Select an IQ file from the **IQ File Library** by tapping on it.
2. Ensure your HackRF is connected and not recording.
3. Press the **Transmit** button. The app will replay the recorded signal at the configured frequency and gain.
4. Press **Stop** to finish transmitting.
> ⚠️ Do not transmit on unauthorized frequencies. Ensure your local license allows transmission.
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## **Status Messages**
* **Initializing…** – App is setting up the HackRF device.
* **HackRF connected. Ready.** – Device is connected and ready.
* **RECORDING…** – Recording IQ data.
* **TRANSMITTING…** – Transmitting selected IQ file.
* **Error: …** – Displays any errors during RX or TX.
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## **File Management**
* Tap a file to select it for transmission.
* Long-press a file to delete it.
* Files are saved in the app’s documents directory and listed in descending order by timestamp.
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## **Tips & Tricks**
* Lower sample rates reduce file size but capture less bandwidth.
* Experiment with gain values for optimal reception and transmission.
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## **Download a Copy**
* [HackRF Parrot APK](https://sarahsforge.dev/products/hackrf-parrot)