What transmit power do you use in your RF link budget?Ģ7dBm since it is the transmit power for the Access Point for the data encoding and the band you plan to use. Now, you design your short-haul PTP link using Wi-Fi Access Points and directional antennas. You have a Wi-Fi Access Point and the total transmit power is 27dBm. In above product spec example, the transmit power stated is the aggregate transmit power for the 3 MIMO data streams.
For Wi-Fi devices, the limits apply to the aggregate transmit power of the device. The FCC limits and regulates maximum transmit power from an intentional emitter, e.g. This is typical, and not a surprise, but what is this transmit power really stating. Now, there is one specification that is commonly misunderstood and leads to confusion when evaluating MIMO capable Wi-Fi Access Points and using them in either PTP or point-to-multipoint (PMP) IIoT networks as wireless infrastructure.Ĭonfusion and mistakes arise from the difference between the transmit power stated on the product data sheet and the transmit power of a single MIMO data stream of the Access Point.įor example, a 3×3 MIMO Access Point data sheet states the transmit power is 27dBm for MCS4/12/20 data encoding in either the 2.4 or 5GHz band. You evaluate potential Wi-Fi Access Points from their data sheet specs. Short-haul RF links out to 8 miles are very doable using industrial Wi-Fi Access Points with directional antennas. So, you consider using industrial Wi-Fi Access Points to implement this short-haul, point-to-point (PTP) RF link between the two sites. You need to link a two production sites together in your IIoT network in order to move critical voice, video, data and sensor data (VVDS™) between the sites by deploying access points. Image courtesy of Flickr Creative Commons
Request Email Response from Technical Supportĭifference Between Data Sheet Transmit Power & Data Stream Transmit Power.
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