Strange RSSI Values

[Hawk]

Howdy Folks, I need to confirm is it even possible to have lower RSSI then Noise and still able to maintain communication . I have seen it go down as much as -101 dbm on android while still able to maintain link and transfer data.

According to picture my Rt-ac88u is giving me very strange reading. I am using Merlin 380.58_alpha3 on device, also did factory reset twice.

I am thinking reading of RSSI values is wrong.

[update]
I tried 380.57 and 380_1354-g82da4ac as well and it is identical in result. Yes I did factory reset on both times.

 

[Hawk]

So I did more test and this is what I found out, if I choose between 36- 48 my RSSI on average 10 to 20 dbm stronger than if I choose 149-161.

I know channel 149-161 allow more power but this is indeed strange.

What is even more surprising with Rt-ac68u I would get exact opposite reading of this in terms of RSSI.

Just want to add my neighbor is using channel 149 and in my old router it would show at least 1 bar out of 4, my current doesn't even show it even 1 bar.

 

[Hawk]

I did another test this time I decided to test power output of my router is sending to my android device. When on channel 36 I get -48dbm and -40dbm on 157.

I am hoping in future driver will enhance RSSI values for higher band and hopefully router will register correct RSSI values.

 

[Nullity]

Forget RSSI values and do actual throughput tests with iperf or by simply sending a file across the LAN.

 

[Hawk]

Forget RSSI values and do actual throughput tests with iperf or by simply sending a file across the LAN.

I did between two desktop , first I create 10 GB file in ram drive and transfer over wired connection to router and on second I plug USB 3 wireless adapter with ASUS Ac56 5GHZ and transfer files from ram drive to another ram drive on other computer. I was able to maintain 10MB/s with -56dbm registering on adapter and -90 RSSI on router.

However I will do more test and see what I get.

 

[Nullity]

Is the RSSI pretty steady?

 

[Hawk]

Is the RSSI pretty steady?

RSSI generally very stable, but change by 1-2dbm.

 

[Hawk]

Ran second test, this time I select channel 48, instead of 157 like last time. Signal at adapter is -57dbm and RSSI -66dbm and speed I got was 18MB/S
Rest of method remains same.

To make fair comparison I did when network was quiet.

 

[Hawk]

I just telnet to my router and ran nvram get country code and it says "TW" will that make a difference about having low RSSI on higher channel even though signal is strong by approx 10 dbm on channel 149-161 or is it driver from broadcom.