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High gain 12dbi passive indoor TV antenna

FHigh-quality UHF band coverage, stable and strong signal. Designed specifically for the 470-862MHz UHF band, it widely supports digital TV and HD broadcasting, effectively receives local free channels, and provides stable signal reception without dropped calls.
  • GL918

  • Asialeren

  • 8517710000

  • 100pcs

  • Accepted

  • 10000pcs/day

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Frequency Range (MHz)

47-862

Bandwidth (MHz)

70

Input Impedence (Ω)

75

V.S.W.R

≤ 1.5

Gain (dBi)

10-12

Polarization

Vertical

Power Capacity (w)

50

Mechanical Specifications

Cable Length-m

3

Connect Type

IEC

Color

Black

material

ABS

Working Temp(℃)

-40~85


Product Introduction

Full-band Coverage, Supports HD and 4K Signals

Frequency range 47-862MHz, fully supports VHF and UHF bands, compatible with digital broadcasting, HD, and 4K ultra-HD signals, easily receiving local free channels.


High-Gain Design, Indoor Signal Enhancement Powerhouse

Provides 10-12dBi gain, ensuring stable picture reception even in weak indoor environments, reducing pixelation and interruptions.


Purely Passive Design, Plug and Play, No Power Required

No external power supply required; works directly from the TV signal, energy-saving and environmentally friendly. Simple and quick installation, truly "plug and play."


High-Quality ABS Material, Beautiful and Durable

Made of ABS engineering plastic, with a simple black appearance, lightweight and sturdy, high-temperature resistant and anti-aging, suitable for various home styles.


Low VSWR and Long Cable Configuration

VSWR≤1.5 ensures efficient signal transmission. Standard 3-meter coaxial cable and IEC interface for convenient and flexible layout, adaptable to most TV locations.


Application Scenarios

●Urban Apartments and Rentals: Placed on a TV cabinet or mounted on a window, suitable for users who cannot install an outdoor antenna, receiving local HD channels.

●Student Dormitories and Bedrooms: Compact and space-saving, providing personal TV entertainment for students and family members, eliminating cable TV fees.

●Offices and Break Areas: Installed as background TV in office areas, receiving news and local programs without affecting the work environment.

●Temporary Housing and Short-Term Rentals: Suitable for hotel apartments or temporary residences, quickly setting up a TV system; portable and easy to disassemble.

●Auxiliary Reception in Areas with Good Signal: Serves as a signal source for a second TV in the home, or can be used with a signal amplifier to enhance coverage.


FAQ

Q: Does this passive antenna require an external power source?

A: No. It is a passive reception design and does not require an external power source; the signal is directly powered through the TV interface.


Q: Where is the best signal location indoors?

A: It is recommended to place it near a window or exterior wall, avoiding metal obstructions as much as possible. You can scan channels and fine-tune the position for optimal results.


Q: Does it support 4K Ultra HD TV?

A: Yes, it supports the entire 47-862MHz frequency band and is compatible with 4K, 1080p, and other high-definition formats.


Q: Does the antenna need frequent adjustment?

A: For initial installation, channel scanning and position adjustment are recommended. Due to vertical polarization, frequent adjustments are generally unnecessary.


Q: Can the cable be extended? Will it affect the signal?

A: It can be used with a high-quality coaxial extension cable, but excessive length may cause signal attenuation. It is recommended to keep the total length within 10 meters.


Q: What is VSWR? Why is it important?

A: VSWR (Voltage Standing Wave Ratio) measures the antenna-to-cable matching degree. The lower the value (e.g., ≤1.5), the less signal loss and the more stable the picture quality.


Q: Is the product compatible with all TV brands?

A: Yes, it uses a standard 75Ω impedance and IEC interface, compatible with most TVs, set-top boxes, and tuners.


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