How tune up sensitivity of a wfi receiver of ASUS RT-AC68U

[travelboy]

Hi! I want to use Router ASUS RT-AC68U, firmware: 374.43_2 (Merlin build) inside an apartment with a complex geometry and reinforced concrete walls. Among connected devices there are an IPad and smartphones. Changing place for the router is highly undesirable, because there are many stationary devices attached to it by cables.
I'm trying to adjust the settings with nvram commands, using telnet.
With nvram commands I can get rid off regional restrictions pci/1/1/ccode=#a, and set a necessary power required for wifi transmitter - wl1_TxPower. But I have no idea how to tune up sensitivity of a wifi receiver to have wifi available in the whole apartment.
I would like to ask the specialists to give me advice: which parameter is responsible for a sensitivity of the wifi receiver?
Thank you in advance.

 

[RMerlin]

Increased output power will not help. You need higher gain antenna if you need to increase sensitivity of the receiving chain.

 

[bill1228]

At least Travelboy understands the two way communication required in wifi. I see so many folks that think just turning up the transmit power will fix their connectivity issues not understanding that the router has to hear the client as well. It is a two way street folks.
--bill

 

[travelboy]

Increased output power will not help. You need higher gain antenna if you need to increase sensitivity of the receiving chain.

At least Travelboy understands…

I've been dealing with this wifi problem in my apartment for about 10 years. It's just a new stage of this struggle. The rate of equipment has increased, and smartphones and notepads have appeared...
Surely, I am aware of some methods for solution of this problem, such as:
- using high gain antenna;
- installation of a metal reflector behind the router;
- using repetitor (By the way, in Moscow the cost of three higher gain antenna totals the cost of one repetitor)
...
...
- change the apartment .

But when I approached specialists on the forum, I inquired about the possibility of increasing sensitivity of receiver by programming methods.
I need to note, that in case of router ASUS RT-AC68U I have seen for the first time, that the manufacturer did not specify the power of the transmission unit, or sensitivity of the receiver.
Judging by the power of the transmission unit, the router has a bigger capacity than its factory settings. It can be expected, that the router also has a capacity for sensitivity of the receiver.
From my experience I can say that all wifi devices with a powerful transmission unit had the high sensitivity for receiving signals.

I have compared the number of Access Points that detect nearby ASUS RT-AC68U and a laptop with installed mini-PCI wifi card EnGenius (transmitter power/ receiver sensitivity - 400mW/-95dBm). The router detects 19 AP, while the laptop 58 AP.
Returning to the initial question:
Is there a known possibility programmed regulation of receiver sensitivity?
Is it possible to set receiver sensitivity by nvram commands?

 

[ColinTaylor]

Is there a known possibility programmed regulation of receiver sensitivity?

No

Is it possible to set receiver sensitivity by nvram commands?

No

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[travelboy]

Is there a threshold, below which the signals get cut off?
Maybe this threshold can be set by software means?

 

[RMerlin]

The low-level details of the Broadcom driver are only available through their SDK, which is only available to their partners. None of us on this forum have access to that documentation.

 

[lukesan]

Read your stuff about sensitivity on the router side, but since it works both ways you would need to increase it on the other device too.
As your more AP's go on the laptop. I have also seen that one but it might have to do with that your AP scans shorter than the laptop and that it might take multiple tries to get the other AP's to show up.

I would go for the antenna reflector approach. Should be easy to experiment with aluminium foil before making something wife proof .
I have a wavemaster T90 sat dish in my garden about 50 meters away from the rt-n66, 2 thick (non US ;-) ) walls in between and when I put my phone in front of it the signal will go up a lot of dB's. Next to the sat dish wifi is almost useless.