GR-1002 Rotatable High Gain Digital Television Antenna TV Receiver for outdoor use, with a UHF frequency range of 470-862 MHz, 75 Ohm impedance, a gain of 28-36 dB, and a standing wave ratio ≤ 1.5.
GR-1002 Rotatable High Gain Digital Television Antenna TV Receiver for outdoor use, with a UHF frequency range of 470-862 MHz, 75 Ohm impedance, a gain of 28-36 dB, and a standing wave ratio ≤ 1.5.
GR-1002 High-Gain Rotatable Outdoor Antenna for Digital UHF Television Reception
Designed to access free-to-air digital television broadcasts, the GR-1002 is an outdoor UHF antenna. Its key specifications include a frequency range of 470-862 MHz, a variable gain of 28-36 dB, and a standing wave ratio (SWR) of ≤ 1.5. This unit is built for permanent external installation and features a rotatable design. It aims to provide a stable signal source for homes in areas where a more robust reception solution is required, though actual performance is highly dependent on local broadcast conditions, distance to transmitters, and installation quality. The receiver uses standard 75 Ohm impedance for compatibility with common coaxial cabling.
Technical Specifications and Performance
The GR-1002's operation is defined by its measurable electrical characteristics. These figures form the basis for its intended function of receiving digital television signals from UHF broadcast towers.
Frequency Range and Gain
The antenna is tuned for the UHF band, specifically 470-862 MHz, which is the standard range for digital terrestrial television in many regions. Its gain, rated between 28 and 36 dB, indicates its ability to amplify signals within this band. Higher gain can help overcome signal loss over distance and through obstacles, but it also makes the antenna more directional, which is why the rotatable feature is important for fine-tuning.
Impedance and Standing Wave Ratio
With a 75 Ohm impedance, the GR-1002 matches the standard impedance of coaxial cables and television inputs, which is intended to ensure efficient power transfer from the antenna to the television. The standing wave ratio (SWR) is specified as ≤ 1.5. A lower SWR generally indicates less signal reflection at the connection point, aiming for more of the captured signal to reach your television set.
Installation and Practical Use
Successful use of this outdoor antenna hinges on correct installation and positioning. It is not a plug-and-play indoor device but a component intended for a fixed, external mounting point.
Outdoor Placement and Mounting
The antenna must be installed outdoors, typically on a roof, chimney, or mast, to achieve a clear line of sight to broadcast towers. The rotatable mechanism allows you to adjust its direction after installation to find the optimal alignment for the strongest signal from your desired transmitters. Secure mounting is essential to maintain this alignment and to withstand weather conditions.
Connection and Signal Optimisation
Connection is made via standard 75 Ohm coaxial cable from the antenna's output to the antenna input on your television or set-top box. After installation, use your television's signal strength meter (if available) to guide the rotational adjustment of the antenna. The goal is to maximise signal strength and quality for the channels you wish to receive. Remember that tall buildings, hills, and dense foliage between the antenna and the transmitter can significantly impact results.
Benefits and Key Considerations
This product offers a specific technical solution for television reception. Its value lies in its defined specifications and outdoor design, compared to smaller indoor alternatives.
Reuse and Durability
As an outdoor antenna, it is constructed for long-term use in an exposed environment. Its performance is not dependent on consumables, offering a one-time installation for ongoing access to free broadcasts. The durability hinges on its build quality and the stability of its mounting.
Why Choose This Outdoor Antenna
This antenna is suitable if you require a higher-gain solution than basic indoor antennas can provide, particularly in suburban or rural areas farther from transmitters. Its rotatable feature provides flexibility to tune for different transmitter locations or if you move house within the same broadcast region. It represents a dedicated hardware approach to improving television reception based on its published gain and frequency specifications.