Maximum 20643 UHF Antenna with Built-in LTE Filter

The highest directional signal amplification a device’s antenna can provide, expressed in decibels relative to an isotropic radiator (dBi). It indicates the maximum gain achievable by the antenna and helps users compare coverage or range potential across devices.

The electrical potential difference that a device is designed to accept from its power source, expressed in volts (V). It indicates the nominal operating voltage for the product and helps users verify compatibility with local mains or battery supplies.

The span of frequencies, expressed in hertz (Hz), that a device can operate within or respond to. It may be given as a single value, a numeric range (e.g., "20 000‑50 000 Hz"), or an open‑ended interval such as "2.4 GHz+" indicating the lower bound only.

A list of the positions or mounting options where a product can be installed, such as indoor, outdoor, wall, desk, floor, ceiling, or universal. Each value represents a distinct placement scenario that the device supports.

A list of the radio frequency bands that a device can receive or transmit, such as FM, AM, DAB, DAB+, UHF, VHF, and other standard radio services. Each entry represents a distinct band; the list allows users to understand the radio capabilities of the product.

The angular spread of an antenna’s radiation pattern measured vertically, expressed in degrees (°). It indicates how wide the signal is projected above and below the antenna’s central axis, affecting coverage area and directional focus.