Table Of Contents

Configuring Radio Settings

Enabling the Radio Interface

Configuring the Role in Radio Network

Bridge Features Not Supported

Configuring Radio Data Rates

Configuring Radio Transmit Power

Limiting the Power Level for Associated Client Devices

Configuring Radio Channel Settings

DFS Automatically Enabled on Some 5-GHz Radio Channels

Confirming that DFS is Enabled

Blocking Channels from DFS Selection

Configuring Location-Based Services

Understanding Location-Based Services

Configuring LBS on Access Points

Enabling and Disabling World Mode

Disabling and Enabling Short Radio Preambles

Configuring Transmit and Receive Antennas

Disabling and Enabling Aironet Extensions

Configuring the Ethernet Encapsulation Transformation Method

Enabling and Disabling Reliable Multicast to Workgroup Bridges

Enabling and Disabling Public Secure Packet Forwarding

Configuring Protected Ports

Configuring the Beacon Period and the DTIM

Configure RTS Threshold and Retries

Configuring the Maximum Data Retries

Configuring the Fragmentation Threshold

Enabling Short Slot Time for 802.11g Radios

Performing a Carrier Busy Test

Configuring Radio Settings

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This chapter describes how to configure radio settings for the wireless device. This chapter includes these sections:

•Enabling the Radio Interface

•Configuring the Role in Radio Network

•Configuring Radio Data Rates

•Configuring Radio Transmit Power

•Configuring Radio Channel Settings

•Configuring Location-Based Services

•Enabling and Disabling World Mode

•Disabling and Enabling Short Radio Preambles

•Configuring Transmit and Receive Antennas

•Disabling and Enabling Aironet Extensions

•Configuring the Ethernet Encapsulation Transformation Method

•Enabling and Disabling Reliable Multicast to Workgroup Bridges

•Enabling and Disabling Public Secure Packet Forwarding

•Configuring the Beacon Period and the DTIM

•Configure RTS Threshold and Retries

•Configuring the Maximum Data Retries

•Configuring the Fragmentation Threshold

•Enabling Short Slot Time for 802.11g Radios

•Performing a Carrier Busy Test

Enabling the Radio Interface

The wireless device radios are disabled by default.

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Note In Cisco IOS Release 12.3(7)JA there is no default SSID. You must create a Radio Service Set Identifier (SSID) before you can enable the radio interface.

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Beginning in privileged EXEC mode, follow these steps to enable the access point radio:

	Command	Purpose
Step 1	configure terminal	Enter global configuration mode.
Step 2	interface dot11radio { 0 | 1 }	Enter interface configuration mode for the radio interface. The 2.4-GHz radio is radio 0, and the 5-GHz radio is radio 1.
Step 3	ssid	Enter the SSID. The SSID can consist of up to 32 alphanumeric characters. SSIDs are case sensitive.
Step 4	no shutdown	Enable the radio port.
Step 5	end	Return to privileged EXEC mode.
Step 6	copy running-config startup-config	(Optional) Save your entries in the configuration file.

Use the shutdown command to disable the radio port.

Configuring the Role in Radio Network

Table 6-1 shows the role in the radio network for each device.

Table 6-1 Device Role in Radio Network Configuration

Role in Radio Network	WGB350	AP350	AP1200	AP1100	AP1130	AP1240
Workgroup bridge	X	-	X	X	X	X
Root access point	-	X	X	X	X	X
Repeater access point	-	X	X	X	X	X
Root bridge with clients	-	-	X	-	-	X
Non-root bridge with clients	-	-	X	-	-	X
Root bridge without clients	-	-	X	-	-	X
Non-root bridge without clients	-	-	X	-	-	X
Scanner	-	X	X	X	X	X

You can also configure a fallback role for root access points. The wireless device automatically assumes the fallback role when its Ethernet port is disabled or disconnected from the wired LAN. There are two possible fallback roles:

•Repeater—When the Ethernet port is disabled, the wireless device becomes a repeater and associates to a nearby root access point. You do not have to specify a root access point to which the fallback repeater associates; the repeater automatically associates to the root access point that provides the best radio connectivity.

•Shutdown—the wireless device shuts down its radio and disassociates all client devices.

Beginning in privileged EXEC mode, follow these steps to set the wireless device's radio network role and fallback role:

	Command	Purpose
Step 1	configure terminal	Enter global configuration mode.
Step 2	interface dot11radio { 0 | 1 }	Enter interface configuration mode for the radio interface. The 2.4-GHz radio is radio 0, and the 5-GHz radio is radio 1.
Step 3	station role non-root {bridge | wireless-clients} repeater root {access-point | ap-only | [bridge | wireless-clients] | [fallback | repeater | shutdown]} scanner workgroup-bridge	Set the wireless device role. •Set the role to non-root bridge with or without wireless clients, repeater access point, root access point or bridge, scanner, or workgroup bridge. •Bridge modes are available only on the 1200 and 1240AG series access points. When in bridge mode, they are interoperable with the 1300 series outdoor access point/bridge only on supported bridge features. See the "Bridge Features Not Supported" section. •The bridge mode radio supports point-to-point configuration only. •The Ethernet port is shut down when any one of the radios is configured as a repeater. Only one radio per access point may be configured as a workgroup bridge or repeater. •The dot11radio 0|1 antenna-alignment command is available when the access point is configured as a repeater. •Spanning Tree Protocol (STP) is configurable on 1200 and 1240AG series access points in bridge modes. •(Optional) Select the root access point's fallback role. If the wireless device's Ethernet port is disabled or disconnected from the wired LAN, the wireless device can either shut down its radio port or become a repeater access point associated to any nearby root access point.
Step 4	end	Return to privileged EXEC mode.
Step 5	copy running-config startup-config	(Optional) Save your entries in the configuration file.

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Note When you enable the Bridge/WGB role in the radio network and enable the interface using the
no shut command, the physical status and the software status of the interface is UP, only if the device on the other end is also UP. Otherwise, only the physical status of the device is UP. The software status of the device comes UP only when the device on the other side is configured and UP.

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Bridge Features Not Supported

The following features are not supported when a 1200 or 1240AG series access point is configured as a bridge:

•Clear Channel Assessment (CCA)

•Interoperability with 1400 series bridge

•Concatenation

•Install mode

•EtherChannel and PageP configuration on switch

Configuring Radio Data Rates

You use the data rate settings to choose the data rates the wireless device uses for data transmission. The rates are expressed in megabits per second. The wireless device always attempts to transmit at the highest data rate set to Basic, also called Require on the browser-based interface. If there are obstacles or interference, the wireless device steps down to the highest rate that allows data transmission. You can set each data rate to one of three states:

•Basic (the GUI labels Basic rates as Required)—Allows transmission at this rate for all packets, both unicast and multicast. At least one of the wireless device's data rates must be set to Basic.

•Enabled—The wireless device transmits only unicast packets at this rate; multicast packets are sent at one of the data rates set to Basic.

•Disabled—The wireless device does not transmit data at this rate.

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Note At least one data rate must be set to basic.

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You can use the Data Rate settings to set an access point to serve client devices operating at specific data rates. For example, to set the 2.4-GHz radio for 11 megabits per second (Mbps) service only, set the 11-Mbps rate to Basic and set the other data rates to Disabled. To set the wireless device to serve only client devices operating at 1 and 2 Mbps, set 1 and 2 to Basic and set the rest of the data rates to Disabled. To set the 2.4-GHz, 802.11g radio to serve only 802.11g client devices, set any Orthogonal Frequency Division Multiplexing (OFDM) data rate (6, 9, 12, 18, 24, 36, 48, 54) to Basic. To set the 5-GHz radio for 54 Mbps service only, set the 54-Mbps rate to Basic and set the other data rates to Disabled.

You can configure the wireless device to set the data rates automatically to optimize either the range or the throughput. When you enter range for the data rate setting, the wireless device sets the 1 Mbps rate to basic and the other rates to enabled. When you enter throughput for the data rate setting, the wireless device sets all four data rates to basic.

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Note When a wireless network has a mixed environment of 802.11b clients and 802.11g clients, make sure that data rates 1, 2, 5.5, and 11 Mbps are set to required (basic) and that all other data rates are set to enable. The 802.11b adapters do not recognize the 54 Mbps data rate and do not operate if data rates higher than 11Mbps are set to require on the connecting access point.

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Beginning in privileged EXEC mode, follow these steps to configure the radio data rates:

	Command	Purpose
Step 1	configure terminal	Enter global configuration mode.
Step 2	interface dot11radio { 0 | 1 }	Enter interface configuration mode for the radio interface. The 2.4-GHz radio is radio 0, and the 5-GHz radio is radio 1.
Step 3	speed These options are available for the 802.11b, 2.4-GHz radio: {[1.0] [11.0] [2.0] [5.5] [basic-1.0] [basic-11.0] [basic-2.0] [basic-5.5] | range | throughput} These options are available for the 802.11g, 2.4-GHz radio: {[1.0] [2.0] [5.5] [6.0] [9.0] [11.0] [12.0] [18.0] [24.0] [36.0] [48.0] [54.0] [basic-1.0] [basic-2.0] [basic-5.5] [basic-6.0] [basic-9.0] [basic-11.0] [basic-12.0] [basic-18.0] [basic-24.0] [basic-36.0] [basic-48.0] [basic-54.0] | range | throughput [ofdm] | default } These options are available for the 5-GHz radio: {[6.0] [9.0] [12.0] [18.0] [24.0] [36.0] [48.0] [54.0] [basic-6.0] [basic-9.0] [basic-12.0] [basic-18.0] [basic-24.0] [basic-36.0] [basic-48.0] [basic-54.0] | range | throughput |default }	Set each data rate to basic or enabled, or enter range to optimize range or throughput to optimize throughput. •(Optional) Enter 1.0, 2.0, 5.5, and 11.0 to set these data rates to enabled on the 802.11b, 2.4-GHz radio. Enter 1.0, 2.0, 5.5, 6.0, 9.0, 11.0, 12.0, 18.0, 24.0, 36.0, 48.0, and 54.0 to set these data rates to enabled on the 802.11g, 2.4-GHz radio. Enter 6.0, 9.0, 12.0, 18.0, 24.0, 36.0, 48.0, and 54.0 to set these data rates to enabled on the 5-GHz radio. •(Optional) Enter basic-1.0, basic-2.0, basic-5.5, and basic-11.0 to set these data rates to basic on the 802.11b, 2.4-GHz radio. Enter basic-1.0, basic-2.0, basic-5.5, basic-6.0, basic-9.0, basic-11.0, basic-12.0, basic-18.0, basic-24.0, basic-36.0, basic-48.0, and basic-54.0 to set these data rates to basic on the 802.11g, 2.4-GHz radio. Note The client must support the basic rate that you select or it cannot associate to the wireless device. If you select 12 Mbps or higher for the basic data rate on the 802.11g radio, 802.11b client devices cannot associate to the wireless device's 802.11g radio. Enter basic-6.0, basic-9.0, basic-12.0, basic-18.0, basic-24.0, basic-36.0, basic-48.0, and basic-54.0 to set these data rates to basic on the 5-GHz radio. •(Optional) Enter range or throughput to automatically optimize radio range or throughput. When you enter range, the wireless device sets the lowest data rate to basic and the other rates to enabled. When you enter throughput, the wireless device sets all data rates to basic. (Optional) On the 802.11g radio, enter speed throughput ofdm to set all OFDM rates (6, 9, 12, 18, 24, 36, and 48) to basic (required) and set all the CCK rates (1, 2, 5.5, and 11) to disabled. This setting disables 802.11b protection mechanisms and provides maximum throughput for 802.11g clients. However, it prevents 802.11b clients from associating to the access point. •(Optional) Enter default to set the data rates to factory default settings (not supported on 802.11b radios). On the 802.11g radio, the default option sets rates 1, 2, 5.5, and 11 to basic, and rates 6, 9, 12, 18, 24, 36, 48, and 54 to enabled. These rate settings allow both 802.11b and 802.11g client devices to associate to the wireless device's 802.11g radio. On the 5-GHz radio, the default option sets rates 6.0, 12.0, and 24.0 to basic, and rates 9.0, 18.0, 36.0, 48.0, and 54.0 to enabled.
Step 4	end	Return to privileged EXEC mode.
Step 5	copy running-config startup-config	(Optional) Save your entries in the configuration file.

Use the no form of the speed command to remove one or more data rates from the configuration. This example shows how to remove data rates basic-2.0 and basic-5.5 from the configuration:

ap1200# configure terminal

ap1200(config)# interface dot11radio 0

ap1200(config-if)# no speed basic-2.0 basic-5.5

ap1200(config-if)# end

Configuring Radio Transmit Power

Radio transmit power is based on the type of radio or radios installed in your access point and the regulatory domain in which it operates. To determine what transmit power is available for your access point and which regulatory domain it operates in, refer to the hardware installation guide for that device. hardware installation guides are available at cisco.com. Follow these steps to view and download them:

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Step 1 Browse to http://www.cisco.com.

Step 2 Click Technical Support & Documentation. A small window appears containing a list of technical support links.

Step 3 Click Technical Support & Documentation. The Technical Support and Documentation page appears.

Step 4 In the Documentation & Tools section, choose Wireless. The Wireless Support Resources page appears.

Step 5 In the Wireless LAN Access section, choose the device you are working with. An introduction page for the device appears.

Step 6 In the Install and Upgrade section, choose Install and Upgrade Guides. The Install and Upgrade Guides page for the device appears.

Step 7 Choose the hardware installation guide for the device. The home page for the guide appears.

Step 8 In the left frame, click Channels and Antenna Settings.

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Table 6-2 shows the relationship between mW and dBm.

Table 6-2 Translation between mW and dBm

dBm	-1	2	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24
mW	1	2	3	4	5	6	8	10	12	15	20	25	30	40	50	60	80	100	125	150	200	250

Beginning in privileged EXEC mode, follow these steps to set the transmit power on access point radios:

	Command	Purpose
Step 1	configure terminal	Enter global configuration mode.
Step 2	interface dot11radio { 0 | 1 }	Enter interface configuration mode for the radio interface. The 2.4-GHz radio is radio 0, and the 5-GHz radio is radio 1.
Step 3	power local These options are available for the 802.11b, 2.4-GHz radio (in mW): { 1 | 5 | 20 | 30 | 50 | 100 | maximum } These options are available for the 5-GHz radio (in mW): { 5 | 10 | 20 | 40 | maximum } These options are available for the 802.11a, 5-GHz radio (in dBm): {-1 | 2 | 5 | 8 | 11 | 14 | 15 | 17 | maximum } If your access point contains an AIR-RM21A 5-GHz radio module, these power options are available (in dBm): { -1 | 2 | 5 | 8 | 11 | 14 | 16 | 17 | 20 | maximum }	Set the transmit power for the 802.11b, 2.4-GHz radio or the 5-GHz radio to one of the power levels allowed in your regulatory domain. Note See the hardware installation guide for your access point to determine the power settings for your regulatory domain.
Step 4	power local These options are available for the 802.11g, 2.4-GHz radio: power local cck settings: { -1 | 2 | 5 | 8 | 11 | 14 | 17 | 20 | maximum } power local ofdm settings: { -1 | 2 | 5 | 8 | 11 | 14 | 17 |maximum }	Set the transmit power for the 802.11g, 2.4-GHz radio to one of the power levels allowed in your regulatory domain. All settings are in mW. On the 2.4-GHz, 802.11g radio, you can set Orthogonal Frequency Division Multiplexing (OFDM) power levels and Complementary Code Keying (CCK) power levels. CCK modulation is supported by 802.11b and 802.11g devices. OFDM modulation is supported by 802.11g and 802.11a devices. Note See the hardware installation guide for your access point to determine the power settings for your regulatory domain. Note The 802.11g radio transmits at up to 100 mW for the 1, 2, 5.5, and 11Mbps data rates. However, for the 6, 9, 12, 18, 24, 36, 48, and 54Mbps data rates, the maximum transmit power for the 802.11g radio is 30 mW.
Step 5	end	Return to privileged EXEC mode.
Step 6	copy running-config startup-config	(Optional) Save your entries in the configuration file.

Use the no form of the power command to return the power setting to maximum, the default setting.

Limiting the Power Level for Associated Client Devices

You can also limit the power level on client devices that associate to the wireless device. When a client device associates to the wireless device, the wireless device sends the maximum power level setting to the client.

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Note Cisco AVVID documentation uses the term Dynamic Power Control (DTPC) to refer to limiting the power level on associated client devices.

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Beginning in privileged EXEC mode, follow these steps to specify a maximum allowed power setting on all client devices that associate to the wireless device:

	Command	Purpose
Step 1	configure terminal	Enter global configuration mode.
Step 2	interface dot11radio { 0 | 1 }	Enter interface configuration mode for the radio interface. The 2.4-GHz radio is radio 0, and the 5-GHz radio is radio 1.
Step 3	power client These options are available for 802.11b, 2.4-GHz clients (in mW): { 1 | 5 | 20 | 30 | 50 | 100 | maximum} These options are available for 802.11g, 2.4-GHz clients (in mW): { 1 | 5 | 10 | 20 | 30 | 50 | 100 | maximum} These options are available for 5-GHz clients (in mW): { 5 | 10 | 20 | 40 | maximum } If your access point contains an AIR-RM21A 5-GHz radio module, these power options are available for 5-GHz clients (in dBm): { -1 | 2 | 5 | 8 | 11 | 14 | 16 | 17 | 20 | maximum }	Set the maximum power level allowed on client devices that associate to the wireless device. Note The settings allowed in your regulatory domain might differ from the settings listed here.
Step 4	end	Return to privileged EXEC mode.
Step 5	copy running-config startup-config	(Optional) Save your entries in the configuration file.

Use the no form of the client power command to disable the maximum power level for associated clients.

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Note Aironet extensions must be enabled to limit the power level on associated client devices. Aironet extensions are enabled by default.

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Configuring Radio Channel Settings

The default channel setting for the wireless device radios is least congested; at startup, the wireless device scans for and selects the least-congested channel. For the most consistent performance after a site survey, however, we recommend that you assign a static channel setting for each access point. The channel settings on the wireless device correspond to the frequencies available in your regulatory domain. See the access point's hardware installation guide for the frequencies allowed in your domain.

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Note Cisco Aironet CB20A client radios sometimes fail to associate to the AIR-RM21A radio module because the CB20A client does not support all the channels supported by the AIR-RM21A radio module. The default channel setting for the AIR-RM21A radio module, least congested, often results in the access point settling on one of these frequencies that the CB20A client radio does not support: channel 149 (5745 GHz), channel 153 (5765 GHz), channel 157 (5785 GHz), and channel 161 (5805 GHz). To avoid this problem, set the channel on the AIR-RM21A radio module to one of the channels supported by the CB20A client.

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Each 2.4-GHz channel covers 22 MHz. The bandwidth for channels 1, 6, and 11 does not overlap, so you can set up multiple access points in the same vicinity without causing interference. Both 802.11b and 802.11g 2.4-GHz radios use the same channels and frequencies.

The 5-GHz radio operates on eight channels from 5180 to 5320 MHz. Each channel covers 20 MHz, and the bandwidth for the channels overlaps slightly. For best performance, use channels that are not adjacent (44 and 46, for example) for radios that are close to each other.

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Note Too many access points in the same vicinity creates radio congestion that can reduce throughput. A careful site survey can determine the best placement of access points for maximum radio coverage and throughput.

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Beginning in privileged EXEC mode, follow these steps to set the wireless device's radio channel:

	Command	Purpose
Step 1	configure terminal	Enter global configuration mode.
Step 2	interface dot11radio {0 | 1 }	Enter interface configuration mode for the radio interface. The 2.4-GHz radio is radio 0, and the 5-GHz radio is radio 1.
Step 3	channel frequency | least-congested	Set the default channel for the wireless device radio. Table 6-3 through Table 6-6 show the available channels and frequencies for all radios. To search for the least-congested channel on startup, enter least-congested. Note The channel command is disabled for 5-GHz radios that comply with European Union regulations on dynamic frequency selection (DFS). See the "DFS Automatically Enabled on Some 5-GHz Radio Channels" section for more information.
Step 4	end	Return to privileged EXEC mode.
Step 5	copy running-config startup-config	(Optional) Save your entries in the configuration file.

Table 6-3 shows the available channels and frequencies for the IEEE 802.11b 2.4-GHz radio.

Table 6-3 Channels and Frequencies for IEEE 802.11b 2.4 GHz Radio

Channel Identifier	Center Frequency (MHz)	Regulatory Domains
		Americas (-A)	China (-C)	EMEA (-E)	Israel (-I)	Japan (-J)
1	2412	X	X	X	-	X
2	2417	X	X	X	-	X
3	2422	X	X	X	-	X
4	2427	X	X	X	-	X
5	2432	X	X	X	X	X
6	2437	X	X	X	X	X
7	2442	X	X	X	X	X
8	2447	X	X	X	X	X
9	2452	X	X	X	-	X
10	2457	X	X	X	-	X
11	2462	X	X	X	-	X
12	2467	-	-	X	-	X
13	2472	-	-	X	-	X
14	2484	-	-	-	-	X

Table 6-4 shows the available frequencies for the 802.11g 2.4 GHz radio.

Table 6-4 Channels and Available Frequencies for IEEE 802.11g 2.4 GHz Radio

Channel Identifier	Center Frequency (MHz)	Regulatory Domains
		Americas (-A)		EMEA (-E)		Israel (-I)		Japan (-J)
		CCK	OFDM	CCK	OFDM	CCK	OFDM	CCK	OFDM
1	2412	X	X	X	X	-	-	X	X
2	2417	X	X	X	X	-	-	X	X
3	2422	X	X	X	X	-	-	X	X
4	2427	X	X	X	X	-	-	X	X
5	2432	X	X	X	X	X	X	X	X
6	2437	X	X	X	X	X	X	X	X
7	2442	X	X	X	X	X	X	X	X
8	2447	X	X	X	X	X	X	X	X
9	2452	X	X	X	X	X	-	X	X
10	2457	X	X	X	X	X	-	X	X
11	2462	X	X	X	X	X	-	X	X
12	2467	-	-	X	X	X	-	X	X
13	2472	-	-	X	X	X	-	X	X
14	2484	-	-	-	-	-	-	X	-

Table 6-5 shows the available channels and frequencies for the RM20A IEEE 802.11a radio

Table 6-5 Channels and Available Frequencies for the RM20A IEEE 802.11a Radio

Channel Identifier	Center Frequency (MHz)	Regulatory Domains
		Americas (-A)		EMEA (-E)		Israel (-I)		Japan (-J)
		CCK	OFDM	CCK	OFDM	CCK	OFDM	CCK	OFDM
1	2412	X	X	X	X	-	-	X	X
2	2417	X	X	X	X	-	-	X	X
3	2422	X	X	X	X	-	-	X	X
4	2427	X	X	X	X	-	-	X	X
5	2432	X	X	X	X	X	X	X	X
6	2437	X	X	X	X	X	X	X	X
7	2442	X	X	X	X	X	X	X	X
8	2447	X	X	X	X	X	X	X	X
9	2452	X	X	X	X	X	-	X	X
10	2457	X	X	X	X	X	-	X	X
11	2462	X	X	X	X	X	-	X	X
12	2467	-	-	X	X	X	-	X	X
13	2472	-	-	X	X	X	-	X	X
14	2484	-	-	-	-	-	-	X	-

Table 6-6 shows the available frequencies for the RM21A and RM22A IEEE 802.11a 5-GHz radios.

Table 6-6 Channels and Available Frequencies for the RM21A and RM22A IEEE 802.11a 5-GHz Radios

Channel ID	Center Freq (MHz)	Americas (-A)	China (-C)	EMEA (-E)	Japan (-J)	South Korea (-K)	North America (-N)	Japan (-P)	Singapore (-S)	Tiawan (-T)	-
34	5170	-	-	-	x	-	-	-	-	-	-
36	5180	x	-	x	-	x	x	x	x	-	-
38	5190	-	-	-	x	-	-	-	-	-	-
40	5200	x	-	x	-	x	x	x	x	-	-
42	5210	-	-	-	x	-	-	-	-	-	-
44	5220	x	-	x	-	x	x	x	x	-	-
46	5230	-	-	-	x	-	-	-	-	-	-
48	5240	x	-	x		x	x	x	x	-	-
52	5260	x	-	x	-	x	x	x	x	-	-
56	5280	x	-	x	-	x	x	x	x	x	-
60	5300	x	-	x	-	x	x	x	x	x	-
64	5320	x	-	x	-	x	x	x	x	x	-
100	5500	-	-	x	-	x	-	-	-	x	-
104	5520	-	-	x	-	x	-	-	-	x	-
108	5540	-	-	x	-	x	-	-	-	x	-
112	5560	-	-	x	-	x	-	-	-	x	-
116	5580	-	-	x	-	x	-	-	-	x	-
120	5600	-	-	x	-	x	-	-	-	x	-
124	5620	-	-	x	-	x	-	-	-	x	-
128	5640	-	-	x	-	-	-	-	-	x	-
132	5660	-	-	x	-	-	-	-	-	x	-
136	5680	-	-	x	-	-	-	-	-	x	-
140	5700	-	-	x	-	-	-	-	-	x	-
149	5745	x	x	-	-	x	x	-	x	x	-
153	5765	x	x	-	-	x	x	-	x	x	-
157	5785	x	x	-	-	x	x	-	x	x	-
161	5805	x	x	-	-