Basic station AS923

Hi,
I am running V4 server. It works fine and I am getting data from my gateways and senores.
My server and hardware are configured to AU915 Basic station.
I need to configure AS923 as well.
I built a new server and I am not sure about the configuration in the Toml. Would appreciate any help.
Here is what I have now for AU915.

# This configuration provides a Semtech UDP packet-forwarder backend and
# integrates with a MQTT broker. Many options and defaults have been omitted
# for simplicity.
#
# See https://www.chirpstack.io/gateway-bridge/install/config/ for a full
# configuration example and documentation.


# Gateway backend configuration.
[backend]
# Backend type.
type="basic_station"

  # Semtech UDP packet-forwarder backend.
  [backend.semtech_udp]

  # ip:port to bind the UDP listener to
  #
  # Example: 0.0.0.0:1700 to listen on port 1700 for all network interfaces.
  # This is the listener to which the packet-forwarder forwards its data
  # so make sure the 'serv_port_up' and 'serv_port_down' from your
  # packet-forwarder matches this port.
  udp_bind = "0.0.0.0:1700"


#Amir

# Basic Station backend.
  [backend.basic_station]

  # ip:port to bind the Websocket listener to.
  bind=":3001"

  # TLS certificate and key files.
  #
  # When set, the websocket listener will use TLS to secure the connections
  # between the gateways and ChirpStack Gateway Bridge (optional).
  tls_cert=""
  tls_key=""

  # TLS CA certificate.
  #
  # When configured, ChirpStack Gateway Bridge will validate that the client
  # certificate of the gateway has been signed by this CA certificate.
  ca_cert=""

  # Stats interval.
  #
  # This defines the interval in which the ChirpStack Gateway Bridge forwards
  # the uplink / downlink statistics.
  stats_interval="30s"

  # Ping interval.
  ping_interval="1m0s"

  # Timesync interval.
  #
  # This defines the interval in which the ChirpStack Gateway Bridge sends
  # a timesync request to the gateway. Setting this to 0 disables sending
  # timesync requests.
  timesync_interval="1h0m0s"

  # Read timeout.
  #
  # This interval must be greater than the configured ping interval.
  read_timeout="1m5s"

  # Write timeout.
  write_timeout="1s"


  # Region.
  #
  # Please refer to the LoRaWAN Regional Parameters specification
  # for the complete list of common region names.
  region="AU915"

  # Minimal frequency (Hz).
  frequency_min=915200000

  # Maximum frequency (Hz).
  frequency_max=927800000

  #[network_server.band]
  #name="AU915"

  #[network_server.network_settings]
  #enabled_uplink_channels=[0, 1, 2, 3, 4, 5, 6, 7]


####################   Amir


[[backend.basic_station.concentrators]]
     # Multi-SF channel configuration.
     [backend.basic_station.concentrators.multi_sf]

     # Frequencies (Hz).
     frequencies=[915200000,915400000,915600000,915800000,916000000,916200000,916400000,916600000]

     # LoRa STD channel.
     [backend.basic_station.concentrators.lora_std]

     # Frequency (Hz).
     frequency=915900000

     # Bandwidth (Hz).
     bandwidth=500000
  
     # Spreading factor.
     spreading_factor=8
  
     # FSK channel.
     [backend.basic_station.concentrators.fsk]
  
     # Frequency (Hz).
     frequency=915600000


####################################

# Integration configuration.
[integration]
# Payload marshaler.
#
# This defines how the MQTT payloads are encoded. Valid options are:
# * protobuf:  Protobuf encoding
# * json:      JSON encoding (easier for debugging, but less compact than 'protobuf')
marshaler="protobuf"

  # MQTT integration configuration.
  [integration.mqtt]
  # Event topic template.
  event_topic_template="au915_0/gateway/{{ .GatewayID }}/event/{{ .EventType }}"

  # Command topic template.
  command_topic_template="au915_0/gateway/{{ .GatewayID }}/command/#"

  state_topic_tamplate="au915_0/gateway/{{ .GatewayID }}/state/{{ .StateType }}"
  # MQTT authentication.
  [integration.mqtt.auth]
  # Type defines the MQTT authentication type to use.
  #
  # Set this to the name of one of the sections below.
  type="generic"

    # Generic MQTT authentication.
    [integration.mqtt.auth.generic]
    # MQTT server (e.g. scheme://host:port where scheme is tcp, ssl or ws)
    server="tcp://127.0.0.1:1883"

    # Connect with the given username (optional)
    username=""

    # Connect with the given password (optional)
    password=""