![]() That would equate to 8 dBm in Mist, using the formula from the previous section (6 dBm of MIMO gain). Which means to convert Ekahau power, you must subtract MIMO gain to get to Mist transmit power.įor example, the transmit power of the 5 GHz radio on this simulated AP43 in Ekahau is 14 dBm. Ekahau represents the total transmit power of the access point (total power out), that is the combination of all the transmitters. When performing a predictive design in Ekahau, here is how to convert the transmit power in Ekahau to transmit power in Mist. ![]() Go here more information about PSD: Considerations for Ekahau ![]() Here is a diagram to compare EIRP and PSD across channel bandwdiths. This is for the US, where PSD limit is 5 dBm/MHz. Reference of PSD and EIRP for Low Power Operation 21 dBm EIRP = 5 dBm/MHz PSD + 10log(40 MHz).We can convert between PSD and EIRP with this formula: EU allows 10 dBm/MHz up to 23 dBm EIRP for LPI.In the US, the FCC allows up to 5 dBm/MHz up to 30 dBm EIRP for low power indoor (LPI) operations.So an 80 MHz channel would allow for higher max EIRP than a 20 or 40 MHz channel. With PSD, the density of power decreases as you increase channel bandwidth. With 6 GHz, in some regulatory domains, such as the FCC transmit power is limited by power spectral density (PSD), rather than EIRP. EIRP = total power out + antenna gain – antenna losses.Example: 17 dBm per chain + 6 dB MIMO gain = 23 dBm total power out.Rule of thumb, add 6 dB for AP41 or AP43 or AP 45 and 3 dB for AP34 for MIMO gain.Total Power Out (TPO) = per chain tx power + 10log(num.Here is how to convert to other common industry notations: That is, the maximum transmit power allowed for any data rate. Transmit power throughout the Mist GUI and API is represented per Tx Chain.
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