How to improve CURWB speed?

[JustTakeTheFirstStep]

	CURWB1	CURWB2
Antenna	IW-ANT-OMH-2567-N	IW-ANT-OMH-2567-N
PID	IW9167EH	IW9167EH
IP ADDR	192.168.1.10	192.168.1.11
MODE	MESH END	MESH POINT

AP1# show dot11Radio 1 config

Interface:              enabled

Mode:                   fixed infrastructure

Frequency:              5180 MHz
Channel:                36
Channel width:          80 MHz
Antenna number:         4
TX power level:         auto
TX power:               20 dBm
Antenna gain:           unselected
Maximum tx mcs:         11
High-efficiency:        enabled
Maximum tx nss:         4
RTS protection:         disabled
guard-interval:         800 ns
ampdu max length:       255
distance:               1000 m

The ampdu Tx    
priority 0:             enabled
priority 1:             enabled
priority 2:             enabled
priority 3:             enabled
priority 4:             enabled
priority 5:             enabled
priority 6:             disabled
priority 7:             disabled

Enhanced Distributed Channel Access (EDCA) configuration
vo: aifs=1 cw_min=2 cw_max=3 txop=15
vi: aifs=1 cw_min=3 cw_max=4 txop=31
be: aifs=3 cw_min=4 cw_max=6 txop=31
bk: aifs=7 cw_min=3 cw_max=4 txop=0

Passphrase:             CiscoURWB
AES encryption:         enabled
AES key-control:        disabled
Key rotation:           disabled
Key rotation timeout:   0(second)

We put two CURWB APs on a single desk and connected them with MESH.

Then we connected a PC to the DC injector and measured the network with PC to PC and iperf.

But we are not satisfied with the speed.

I need some advice to improve the speed.

[Leo Laohoo]

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@JustTakeTheFirstStep wrote:

Then we connected a PC to the DC injector and measured the network with PC to PC and iperf.

But we are not satisfied with the speed.

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What speed are you getting?
What firmware are the two APs on?
How far (distance-wise) are the two APs situation from each other?

[JustTakeTheFirstStep]

There is an APs on my desk. The distance to the AP is within 1 meter.

The speed is sometimes 100 Mbps and on average 200 Mbps.

[I0T]

• The distance between the APs with a Tx power of 20 dBm is too short, which can cause overmodulation. Set the Tx power to the minimum for testing purposes.
• Ensure that the antenna gain is configured correctly (7 dBi for 5 GHz).
• Make sure the distance between antennas connected to the same AP is at least 20 cm