Asus RT-AC87U - What Tx power "Power Saving", "Fair", "Balance", "Good" and "Performance" mean?
- Thread starter Mare007
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JAnton
New Around Here
Transmitting power put into the antenna letting you transmit wireless data faster and further. This is only for sending a signal to your wireless device, your wireless device may not have the same range sending its own signal for the router to receive. Also more power transmitting slightly increases hardware temps of your antennas and potentially CPU lowering its life span over time, especially in hotter climates.
My question is, what does "Power Saving", "Fair", "Balance", "Good" and "Performance" mean in mW or dBm?
"Performance" = 100 mW? or maybe 80 mW?
"Good" = ??? mW
"Balance" = ??? mW
"Fair" = ??? mW
"Power Saving" = ??? mW
Or theese words mean "dinamic Tx power shemes", ... tx power varrying all the time (dependig which sheme is set), depending on signals strength?
D
Deleted member 22229
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Just leave it at performance then you get the full legal output for your region. Many people say adjusting it really don't make much of a difference and question if the slider even works.
I just did a test using my RT-AX58U while monitoring it's signal level with Ubiquiti's WiFiman on my Android phone. Going from "Performance" to "Power Saving" the received level went 9 dBm down.
Interesting. If "Performance" is/was 100 mW and then a 9 dBm reduction, that would mean a drop from 100 mW to 12.6 mW.
With my RT-AC1900U running Merlin I used the terminal command through ssh "wl -i eth1 txpwr_target_max".
Strangely I got the same result with both "Performance", "Good", "Balance", and "Fair". Which was 11.75 dBm = 14.96 mW. So might be a bug with the adjustment. I even rebooted the router to see if it made a difference. "Power Saving" was 11.50 dBm (14.13 mW). Would have been interesting to see which results you got if you tried.
"eth1" is the 2.4 Ghz. Didn't try "eth2" for the 5Ghz.
Using FreshTomato the different mW values show different dBm values accordingly.
dBm to mW conversion calculator
Decibel-milliwatts (dBm) to milliwatts (mW) power conversion: calculator and how to convert.
www.rapidtables.com
mW to dBm conversion - RapidTables.com
milliwatt (mW) to dBm, power conversion: calculator and how to convert.
www.rapidtables.com
Tech9
Part of the Furniture
This 12dBm/15mW is very low default power setting for RT-AC68U and variants for any region. I remember US/CA models had up to 26dBm/400mW for both bands, EU models perhaps have 20/23dBm or 100/200mW for 2.4/5GHz bands limited by local regulations. Power Saving setting on Asus routers switches the radios to single stream only and impacts the performance greatly, don't use.
Sorry, I forgot to mention that my settings with the 2.4 Ghz is b/g legacy. So that might have something to do with the same overall results from "Fair" to "Performance". I didn't think of that.
Thanks for the "single stream" info. Interesting to know.
Tech9
Part of the Furniture
I personally haven’t seen b/g client for many years. Why do you have your 2.4GHz radio set this way?
Have an old Lenovo tablet that is frequently used in the family
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