Wireless Access

I've read that it's best practice to only have 3DB difference between min and max for 2.4ghz and 5ghz would that be the case when using a mobility conductor. it should adjust the EIPR power. Would it be best to have a wider range to allow it to adjust more.  What about 6ghz would that have even a wider range. 

Others have said the radio power and the client power should be a close match. My impression is the mobility conductor only adjusts the power based on AP interference trying to not let AP's overlap. Does it try to match the AP radio to the clients.   

Thanks 

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Kelly
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It doesn't matter if you have a Mobility Conductor or not. This is about the RF design.

The 3dB between min-max mostly applies if you have a uniform RF environment, as in APs spreaded at equal distances and same type of environment like open offices, or meeting rooms. The idea behind the reasoning is that clients tend to pick the strongest signal (for that reason, set 5GHz 6dB higher than 2.4; and use wider channels if your channel plan allows that). If you get in a situation where you have 2 adjacent APs, one with 10 dBm EIRP (selected by Airmatch), the other with 20 dBm EIRP (extreme example for illustration purposes only); the clients are likely to select the 20 dBm stronger signal, and the AP with 10 dBm will not be used. For roaming and the spreading of clients efficiently across your APs, you don't want some APs to be 'more attractive' to clients than others; however there may be situations where you can use that property.

The client to AP power matching appears to be an 'urban legend'. There is no need to control your client power; or rather you can't control your client power. The receivers in APs (at least the APs that HPE creates) are much better than the ones in your clients. Still it's recommended to keep the AP power as low as possible while maintaining a good signal strength. 

What you can do is let Airmatch run initially without any restrictions, and see what it comes up with; let it run for a week or so if you can. Then check what power is assigned to the APs, and check situations where you have very low, or very high power assigned; as in a proper designed network (evenly distributed APs) the selected AP power settings per radio should be roughly the same within the same band (2.4/5/6). From that point you could select more strict boundaries and you may end up with that 3 dB (or 6dB) range.

If you see issues, it may be good to work with an experienced WiFi engineer, but one of the 'problems' with Wi-Fi is that you need to do a lot wrong before it really stops working. It's more for optimizing and getting the best network. And for that, you need to adapt to the type of clients that you have, a warehouse is different from an office space and different from an public venue or university; but AirMatch tries to do the best where it can, and is quite accurate, at least to get a good idea of how your environment works for RF/WiFi.

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Herman Robers
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