See also: Map Your Wi-Fi With a HeatmapperĪn antenna with two poles, the most common type of external/external antenna, often used on routers and other devices that contain wireless access points. The best way to measure the wireless coverage in a given area, is to use a tool known as a heatmapper. Wireless coverage is a term used to describe how far wireless signals reach at a satisfactory strength. See also: Marine Radar and Wi-Fi Congestion Along the Coast This means that a DFS-enabled access point must change the channel if detecting that a radar is sending signals using the channel it is currently on. The term usually describes functionality that allows a wireless channel to prioritize radar signals. See also: What is Good Wireless Signal Strength and How Do You Measure It?ĭFS is short for Dynamic Frequency Selection. It is provided as a negative value, and under normal circumstances, signal strength close to a wireless access point will be around -30 dBm. Wi-Fi signal strength is measured in dBm, which is short for decibel-milliwatt. See also: Why Band Steering Means Better Wi-FiĪ Wi-Fi mechanism for determining whether a given channel is available / in use / subject to interference. See also: Bad Apple: How a Single Device Can Ruin Your Wi-FiĪlso known as spatial filtering, beamforming is a technology that shapes/directs the wireless signal towards a wireless client/device to deliver a stronger signal.Ī form of client steering, band steering is functionality that allows the wireless access point(s) to determine which frequency band a device should be connected to based on what the device supports and which frequency band will provide the better performance under the circumstances. See also: Router, Wi-Fi Repeater and Access Point-What's the Difference?Ī bad apple is a device that has so poor coverage that it consumes large portions of the wireless capacity (airtime) and thus kills Wi-Fi performance for everyone on the network. The most commonly used access points are wireless routers (routers with an access point embedded), Wi-Fi extenders, and separate wireless access points that sometimes have the capability to form a mesh network. See also: Bad Apple: How a Single Device Can Ruin Your Wi-FiĪn access point has one or more wireless radios that allow other devices to connect wirelessly to connect to the internet. Airtime is not limited to the actively used capacity of a network or access point and can therefore be entirely consumed by, for example, interference from nearby networks. See also: Why Internal Antennas Are Better For Home Wi-FiĪirtime is a measure of the wireless capacity in a given area and is measured in percentages. Any device meant to send or receive wireless signals must have one or more antennas either externally and visibly, or internal antennas, which are usually not visible. Notice anything missing? Let us know! TermĪn antenna is a component of a device dedicated to sending and/or receiving wireless signals. Here we have tried to compile the most common and some slightly lesser-known concepts in an up to date overview.
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