Introdução
This manual provides instructions for the setup, operation, and maintenance of your CJ TECH Amplified Digital TV Antenna, Model 72256. This antenna is designed to receive over-the-air digital television broadcasts, offering access to local channels without subscription fees. It features an integrated signal amplifier to enhance reception.
Conteúdo da embalagem
Por favor, verifique se todos os itens estão presentes na embalagem:
- CJ TECH Amplified Digital TV Antenna (Model 72256)
- USB Power Adapter (for ampmais vivo)
- Cabo coaxial
- Manual do usuário (este documento)
Características
The CJ TECH Amplified Digital TV Antenna (Model 72256) incorporates several features to optimize your television viewexperiência de aprendizagem:
- Sinal Amplificação: Até 17 dB amplification to maintain or boost signal quality.
- Broad Spectrum Reception: Designed to receive both UHF and VHF broadcast elements, covering channels 6-57.
- Suporte para alta definição: Supports reception of 1080p resolution broadcasts.
- Alcance estendido: Provides a maximum reception range of 40 miles.
- Alimentado por USB: O amplifier connects via a USB power adapter for convenient power supply.
- Low Noise Circuitry: Features Extremely Low Noise (ELN) circuitry to preserve signal purity.
Configurar
1. Desembalagem e colocação
Carefully remove all components from the packaging. Choose an optimal location for the antenna. For best reception, place the antenna near a window or as high as possible, away from large metallic objects or other electronic devices that may cause interference.

Imagem: Frente view of the CJ TECH Amplified Digital TV Antenna, a sleek black rectangular panel with the 'CJ TECH' logo.

Imagem: Traseira view of the CJ TECH Amplified Digital TV Antenna, displaying the integrated kickstand for tabletop placement and keyhole slots for wall mounting.

Image: The CJ TECH Amplified Digital TV Antenna positioned on a media console, demonstrating its compact size and discreet placement next to a wall-mounted television.
2. Conectando a Antena
- Connect the coaxial cable from the antenna to the "ANT/IN" or "CABLE/IN" port on the back of your television.
- Connect the USB power adapter to the antenna's amplifier unit. Plug the USB adapter into an available USB port on your TV or a wall adapter.
3. Ligando
Ensure the USB power adapter is connected and receiving power. The amplifier unit typically has an indicator light to confirm it is powered on.
Operacional
1. Performing a Channel Scan
After connecting the antenna, you must perform a channel scan on your television to find available broadcasts.
- Turn on your television and select the correct input source (e.g., TV, ANTENNA).
- Navigate to your TV's menu settings. Look for options such as "Channel Setup," "Auto Program," "Auto Scan," or "Channel Search."
- Select "Air" or "Antenna" as the signal source, not "Cable."
- Inicie a busca de canais. Este processo pode levar vários minutos.
- Once the scan is complete, your TV will display the available channels.
2. Optimizing Antenna Placement
If you are not receiving all desired channels or experience poor signal quality, try repositioning the antenna. Slight adjustments in height or direction can significantly impact reception. Perform a new channel scan after each adjustment.
Manutenção
Limpeza
To clean the antenna, gently wipe its surface with a soft, dry cloth. Do not use liquid cleaners or abrasive materials, as these may damage the unit.
Armazenar
When not in use for extended periods, store the antenna in a cool, dry place, away from direct sunlight and extreme temperatures.
Solução de problemas
No Channels Found or Poor Reception
- Verifique as conexões: Certifique-se de que todos os cabos estejam firmemente conectados à antena. ampAmplificador e TV.
- Fonte de energia: Verifique o amplifier is receiving power via the USB connection.
- Reposicionar antena: Try moving the antenna to a different location, preferably higher or closer to a window. Perform a channel scan after each adjustment.
- Reanalisar canais: Always perform a full channel scan after moving the antenna or if new channels are expected.
- Entrada de TV: Confirm your TV's input source is set to "Antenna" or "Air."
- Local Signal Strength: Check online resources for local broadcast tower locations and signal strength in your area. Obstacles like buildings or terrain can affect reception.
Intermittent Signal Loss
- Interferência: Keep the antenna away from other electronic devices (e.g., microwaves, computers, cordless phones) that may cause interference.
- Condições climáticas: Severe weather can temporarily affect signal reception.
Especificações
| Recurso | Detalhe |
|---|---|
| Número do modelo | 72256 |
| Marca | CJ TECH |
| Tipo de antena | Amplified Digital TV Antenna |
| Faixa de Recepção | Até 40 milhas |
| Amplificação | Até 17 dB |
| Freqüências Suportadas | VHF, UHF (Channels 6-57) |
| Suporte de Resolução | 1080p |
| Fonte de energia | powered USB |
| Circuito | Extremely Low Noise (ELN) |
| Dimensões da embalagem | 10.2 x 9.9 x 1.8 polegadas |
| Peso do item | 13.9 onças |
| UPC | 695087722565 |
Garantia e Suporte
For warranty information or technical support, please refer to the product packaging or contact CJ TECH customer service directly. Contact details are typically provided on the manufacturer's website ou documentação incluída.





