Specifications
REVIEW DRAFT—CISCO CONFIDENTIAL
5-11
Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide
OL-11321-08
Chapter 5 Cisco Aironet 1200 Series Access Points
Changing the Lightweight Access Point Output Power
Step 7 In the Tx Power Level field, select the appropriate power level setting (1 to 8).
Based on the operating channel, the regulatory domain, and the controller power level setting (1 to 8),
the actual transmit power at the access point can be reduced to comply with special regulatory or country
restrictions.
Table 5-10 lists the controller power settings and the corresponding output power levels for these two
examples:
• 2.4-GHz (802.11b/g) operation:
–
(–E) regulatory domain and channel 2 using 11-Mbps data rates
–
6-dBi external antenna
• 5-GHz (802.11a) operation:
–
(–E) regulatory domain and channel 52 using 36-Mbps data rates
–
RM22A with 6-dBi external antenna
• For 802.11b (CCK) and 802.11g (OFDM) data rates (see Table 5-3 and Table 5-10), the manual
controller Tx Power Level setting is 3.
• For only 802.11b (CCK) data rates (see Table 5-3 and Table 5-10), the manual controller Tx Power
Level setting is 2.
• For 802.11a (see Table 5-7 and Table 5-10), the manual controller Tx Power Level setting is 2.
Step 8 Click Apply.
Step 9 Close your Internet browser.
For additional configuration information, refer to the Cisco Wireless LAN Controller Configuration
Guide.
Ta b l e 5-10 Example of Output Power Levels
Controller
Tx Power Settings
1
1. The Tx Power Level setting of 1 represents the maximum conducted power setting for the access point. Each
subsequent controller power level (such as 2, 3, 4, etc.) represents approximately a 3-dBm reduction in transmit
power from the previous power level.
Radio Output Power
802.11b (mW) 802.11g (mW) 802.11a (dBm)
1 (maximum) 50
2
2. The maximum output power levels obtained from Table 5-3 and the values converted using Table 5-9.
30
2
17
3
3. The maximum output power level of 17 dBi obtained from Table 5-6.
2 25 15 14
3 12 8 11
4 6 4 8
5 3 2 5
6 2 1 2
7 1 – -1
8 – – –