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=""

Have you seen the example files? There is one for AS923: https://github.com/chirpstack/chirpstack-docker/blob/master/configuration/chirpstack-gateway-bridge/chirpstack-gateway-bridge-basicstation-as923.toml

There are also other examples for other regions, including the other variants of AS923.

Please customize the file to fit your purposes. This should align with the channels you configured within the Chirpstack Network Server component.