1. Introduction and Overview
The Supersonic SC-605 HDTV Digital Amplified Indoor Antenna is designed to provide enhanced reception for free local digital and analog TV broadcast signals. This antenna supports high-definition broadcasts including 1080p, 1080i, and 720p, ensuring clear picture quality for your viewing experience.
Equipped with a full band DTV/VHF/UHF/FM receiver, the SC-605 captures a wide range of signals. Its amplified performance is achieved through state-of-the-art 2-stage VHF amplifiers and a low-noise, high-gain UHF amplifier, which work together to maximize signal strength and minimize interference. The antenna offers a reception range of up to 40 miles and operates across a broad frequency range of 47-860 MHz channels, with an antenna gain of 20-30dB.
Installation is designed to be user-friendly, featuring a simple connection via the included built-in coaxial cable and a convenient LED power indicator for operational status.

Figure 1: Supersonic SC-605 HDTV Digital Amplified Indoor Antenna.
2. What's in the Box
Upon opening the product packaging, please verify that all components are present and undamaged.
- SuperSonic SC-605 HDTV Digital Amplified Indoor Antenna (with built-in coaxial cable)

Figure 2: Packaging of the Supersonic SC-605 Antenna, showing key features and specifications.
3. Setup Instructions
- Connect the Antenna: Locate the coaxial input port on your television or digital converter box. Connect the coaxial cable extending from the Supersonic SC-605 antenna to this port. Ensure the connection is secure.
- Power On: Plug the antenna's power adapter into a standard electrical outlet. The LED power indicator on the antenna base should illuminate, indicating it is receiving power.
- Position the Antenna: Place the antenna in a location that offers the best possible reception. This is typically near a window, away from large metal objects, and as high as possible. Experiment with different orientations and locations to find the optimal spot.
- Scan for Channels: Access your television's menu and navigate to the "Channel Scan," "Auto Program," or "Auto Tune" function. Initiate the scan to allow your TV to detect available digital and analog channels. This process may take several minutes.
- Adjust Gain (if applicable): The antenna features a gain control knob. If you are experiencing signal issues, try adjusting this knob to optimize reception. A higher gain may be beneficial in areas with weak signals, while a lower gain might be better in areas with strong signals to prevent over-amplification.
Note: Channel availability and signal quality can vary based on geographical location, terrain, and obstructions. Rescanning channels periodically is recommended, especially if you move the antenna or if new broadcasts become available.
4. Operating Instructions
Once the antenna is set up and channels have been scanned, operating the Supersonic SC-605 is straightforward:
- Power Indicator: The LED light on the antenna base indicates that the unit is powered on and ready for operation.
- Channel Selection: Use your television's remote control to browse and select channels as you normally would.
- Optimizing Reception: If you encounter pixelation, signal dropouts, or missing channels, try the following:
- Slightly adjust the position or orientation of the antenna.
- Adjust the gain control knob on the antenna base.
- Perform a new channel scan on your television.
- FM Reception: The antenna also supports FM reception. To use this feature, ensure your radio or receiver has a coaxial input for an external antenna and perform an FM channel scan.
5. Maintenance
To ensure the longevity and optimal performance of your Supersonic SC-605 antenna, follow these simple maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe down the antenna's exterior. Avoid using abrasive cleaners, solvents, or strong detergents, as these can damage the finish or internal components.
- Placement: Keep the antenna in a dry indoor environment. Avoid placing it in direct sunlight, near heat sources, or in areas with high humidity.
- Cable Management: Ensure the coaxial cable is not kinked, pinched, or excessively bent, as this can affect signal transmission.
- Storage: If storing the antenna for an extended period, disconnect it from power and the television, and store it in a cool, dry place.
6. Troubleshooting
If you experience issues with your Supersonic SC-605 antenna, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No channels found or poor reception. | Incorrect antenna positioning, weak signal, interference, TV not set to antenna input. |
|
| LED power indicator is off. | No power supply. |
|
| Picture is pixelated or freezes. | Weak or intermittent signal. |
|
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | SC-605 |
| Product Dimensions | 10.75 x 7 x 6 inches |
| Item Weight | 1.6 pounds |
| Frequency Range | 47-860 MHz channels |
| Antenna Gain | 20-30dB |
| Maximum Range | 40 Miles |
| Impedance | 75 Ohm |
| Power Source | AC 110V-127V |
| Color | Black |
| Manufacturer | Supersonic |
| Country of Origin | China |
8. Safety Information
WARNING: This product can expose you to chemicals including lead, which is known to the state of California to cause cancer, birth defects or reproductive harm. For more information, go to www.P65warnings.ca.gov
This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Always handle electronic devices with care. Do not attempt to disassemble or modify the antenna. Keep out of reach of children and pets.
9. Warranty and Support
For warranty information or technical support regarding your Supersonic SC-605 HDTV Digital Amplified Indoor Antenna, please refer to the documentation included with your purchase or contact Supersonic customer service directly. Contact details can typically be found on the manufacturer's official website or on the product packaging.
Please retain your proof of purchase for any warranty claims.