page_title: Received signal strength indication
hierarchical_section_title: Received signal strength indication
caption_attribution_description: English: Received Signal strength At to top row bar display of signal strength for two cellular networks, and arches representing signal strength of a WiFi network RSSI power -74dbm 66asu LTE Golan Telecom
context_page_description: In telecommunications, received signal strength indicator is a measurement of the power present in a received radio signal.
  RSSI is usually invisible to a user of a receiving device. However, because signal strength can vary greatly and affect functionality in wireless networking, IEEE 802.11 devices often make the measurement available to users.
  RSSI is often derived in the intermediate frequency stage before the IF amplifier. In zero-IF systems, it is derived in the baseband signal chain, before the baseband amplifier. RSSI output is often a DC analog level. It can also be sampled by an internal analog-to-digital converter and the resulting codes available directly or via peripheral or internal processor bus.
context_section_description: In telecommunications, received signal strength indicator (RSSI) is a measurement of the power present in a received radio signal.
  RSSI is usually invisible to a user of a receiving device. However, because signal strength can vary greatly and affect functionality in wireless networking, IEEE 802.11 devices often make the measurement available to users.
  RSSI is often derived in the intermediate frequency (IF) stage before the IF amplifier. In zero-IF systems, it is derived in the baseband signal chain, before the baseband amplifier. RSSI output is often a DC analog level. It can also be sampled by an internal analog-to-digital converter (ADC) and the resulting codes available directly or via peripheral or internal processor bus.
caption: RSSI of -74dBm (or 66 asu) displayed on a smartphone. Also shown signals bars of 2 cellular networks, and signals bar of a Wi-Fi network
exif: {"Image Orientation": "Horizontal (normal)"}