Update CAR INSTALL.md

CAR INSTALL.md

@@ -116,51 +116,32 @@ Disable both of these services from starting at boot time (this is because we wi
 #### Configure HostAPD
 Configure `hostapd` by creating `/etc/hostapd/hostapd.conf` with the following contents which will set up an open network with the name BMW. You might wish to change the name:
 ``` 
-# This is the name of the WiFi interface we configured above
+# Thanks to https://wiki.gentoo.org/wiki/Hostapd#802.11b.2Fg.2Fn_triple_AP
+
+# The interface used by the AP
 interface=wlan0
 
-# Use the nl80211 driver with the brcmfmac driver
-driver=nl80211
-
-# This is the name of the network -- yours might be different
+# This is the name of the network -- yours may be different
 ssid=BMW
 
-# Use the 2.4GHz band
+# "g" simply means 2.4GHz band
 hw_mode=g
 
-# Use channel 6 or some other channel of your choice
-channel=6
+# Channel to use
+channel=11
 
-# Enable 802.11n
+# Limit the frequencies used to those allowed in the country
+ieee80211d=1
+
+# The country code
+country_code=IE
+
+# Enable 802.11n support
 ieee80211n=1
 
-# Enable WMM
+# QoS support, also required for full speed on 802.11n/ac/ax
 wmm_enabled=1
 
-# Enable 40MHz channels with 20ns guard interval
-#ht_capab=[HT40][SHORT-GI-20][DSSS_CCK-40]
-
-# Accept all MAC addresses
-macaddr_acl=0
-
-# Use WPA authentication
-#auth_algs=1
-
-# Require clients to know the network name
-ignore_broadcast_ssid=0
-
-# Use WPA2
-#wpa=2
-
-# Use a pre-shared key
-#wpa_key_mgmt=WPA-PSK
-
-# The network passphrase
-#wpa_passphrase=none
-
-# Use AES, instead of TKIP
-#rsn_pairwise=CCMP
-
 ```
 #### Configure DHCP server