Transmission power EAP650 & EAP653
Please confirm that transmission power of EAP650 and EAP653 are different for EU market:
EAP650:
• CE:
<20 dBm(2.4 GHz, EIRP)
<23 dBm(5 GHz, Band1 & Band2, EIRP)
<30 dBm(5 GHz, Band3, EIRP)
EAP653:
• CE:
<20 dBm(2.4 GHz, EIRP)
<23 dBm(5 GHz, Band1 & Band2, EIRP)
<27 dBm(5 GHz, Band3, EIRP)
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My EU EAP653 seems to be limited to 20dBm on both bands in standalone mode.
Frequencies: * 5180 MHz [36] (20.0 dBm) * 5200 MHz [40] (20.0 dBm) * 5220 MHz [44] (20.0 dBm) * 5240 MHz [48] (20.0 dBm) * 5260 MHz [52] (20.0 dBm) * 5280 MHz [56] (20.0 dBm) * 5300 MHz [60] (20.0 dBm) * 5320 MHz [64] (20.0 dBm) * 5500 MHz [100] (20.0 dBm) * 5520 MHz [104] (20.0 dBm) * 5540 MHz [108] (20.0 dBm) * 5560 MHz [112] (20.0 dBm) * 5580 MHz [116] (20.0 dBm) * 5600 MHz [120] (20.0 dBm) * 5620 MHz [124] (20.0 dBm) * 5640 MHz [128] (20.0 dBm) * 5660 MHz [132] (20.0 dBm) * 5680 MHz [136] (20.0 dBm) * 5700 MHz [140] (20.0 dBm) Frequencies: * 2412 MHz [1] (20.0 dBm) * 2417 MHz [2] (20.0 dBm) * 2422 MHz [3] (20.0 dBm) * 2427 MHz [4] (20.0 dBm) * 2432 MHz [5] (20.0 dBm) * 2437 MHz [6] (20.0 dBm) * 2442 MHz [7] (20.0 dBm) * 2447 MHz [8] (20.0 dBm) * 2452 MHz [9] (20.0 dBm) * 2457 MHz [10] (20.0 dBm) * 2462 MHz [11] (20.0 dBm) * 2467 MHz [12] (0.0 dBm) * 2472 MHz [13] (0.0 dBm)
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@tomekpro1069 using EAP653 I am able to select 25 dBm on channel 100, 160MHz wide (it scans for 10 minutes before it's ready). Still based on the specs and EU regulations I should be able to 1000mW in U-NII-2c bands (30 dBm). I am not sure why this is blocked. Additionally I am missing U-NII-3 bands (149-165 channels) - in which it's legally possible to go up to 4000mW.
Do you know how to enable U-NII-3 bands?
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The rule seems to be max 50mW/Mhz including antenna gain in the EU...so 20Mhz channel=30dB or 1W, 80Mhz bonded=4W?
Depending on the radio design, you may have to reduce max power by 3dB (so 27dB or 0.5W).
Depending on the antenna design, like say there's a 7dB antenna gain and no TPC (power control) then your max radio output power is 30-3-7 = 20dB
You also have radar avoidance issues to deal with. There are a couple of frequency blocks where you are capped at 25mW too.
From the Wiki page on Wifi Channels, specifically the interesting section of 5.8Ghz channels.
and note 7 details from https://en-wikipedia-org/wiki/List_of_WLAN_channels
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Here is what've learnt recently:
- there is no possiblity to select channels in U-NII-3 (a.k.a band4 in TP-link docs, 149-165 channels) for indoor EAPs - but I don't own any outdoor version so I can't tell
- "power" is spread across whole channel width - which means using 80MHz channel will give you "stronger" signal than using 160MHz channel
- 160MHz channel is only useful when you have >700Mbps WAN
- the speed depends on number of WiFi antenas in you device
- there is only place for 2x160MHz channels in indoor spectrum for EU (36-64 and 100-128)
I just bought EAP670 (totally overkill for home, it's uglily large) but it's possible to select 30 dBm.
I have AP per each floor (500m2 house) in my setup and currently I am testing 160MHz channels, (100 basement, 36 ground, 100 roof). But it's too strong anyway - I see that my phone tends to not roam from roof AP when I am on groud floor. I'll be testing AI option with 80MHz channels and power adjustments soon.
I think I'll eventually stick to 3x80MHz non-overlapping channels.
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