![]() ![]() So, EIRP of your Ruckus AP is the combined value of the configured Tx power and the antenna gain (assuming minimal loss between transmitter and antenna).ĮIRP (dBm) = Conducted Power (dBm) + Antenna Gain (dBi) – Cable loss (dB) ![]() Equivalent Isotropically Radiated Power (EIRP)ĮIRP is the Tx power from IR combined with the antenna gain after any loss due to signal attenuation in the connection cable between the transmitter and antenna. If you want to know the max Tx power of an AP allowed in US, you can reach out to your Ruckus SE. Note – the Tx power listed on data sheets is the generic max power of the AP and it doesn’t show the actual reduced power that is applicable as per FCC rules in US. ![]() Tx power in 2.4 GHz and 19 dBm as the maximum Tx. The conducted power also varies based on the frequency and channel the AP chooses. A 3 dB reduction of power on one AP model could set your conducted power as low as 13 dBm (H510) vs. You need to keep this mind when setting a zone or venue-level Tx power settings as you might have different AP models in the same venue. Entry-level APs usually have lower maximum Tx power than high-end APs. Though 30 dBm is allowed to be transmitted from the AP, the manufacturer allowed power could vary based on the model of access point you have. Max Conducted Power allowed by FCC on Access Points When you set the Tx power in your management console (like Unleashed or Cloud), you’re configuring the Tx power before the AP passes it on the antenna and this is called as “conducted power”. The IR consists of the components inside your access point that generates the RF before passing it on the antenna. Intentional Radiator (IR)Īs per FCC, an Intentional Radiator (defined in Section 15.3 (o)) is a device that intentionally generates and emits radio frequency energy by radiation or induction that may be operated without an individual license. We should know the difference between an Intentional Radiator (IR) and Equivalent Isotropically Radiated Power (EIRP) to understand how a Wi-Fi manufacturer determines the maximum allowed Tx power of an AP in a country. As Ruckus doesn’t let you configure the absolute Tx power, this post shows how to find it. Knowing the Tx power of an AP is very important for predictive designs and also for engineers who like to manually configure it to match the Tx power of client devices. ![]()
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