Specifications

REVIEW DRAFT—CISCO CONFIDENTIAL
7-2
Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide
OL-11321-08
Chapter 7 Cisco Aironet 1250 Series Lightweight Access Points
Channels and Maximum Power Levels
Channels and Maximum Power Levels
Note The access point has been designed to operate with the antennas listed in the product hardware
installation guide and having a maximum gain of 10 dBi for 2.4 GHz and 6 dBi for 5 GHz. Antennas not
included in this list or having a higher gain are strictly prohibited for use with the access point. The
required antenna impedance is 50 ohms.
Note To reduce potential radio interference to other users, the antenna type and its gain should be chosen so
that the equivalent isotropically radiated power (e.i.r.p.) is not more than required for successful
communication.
2.4 GHz Band (IEEE 802.11n Version 2.0)
An improper combination of power level and antenna gain can result in equivalent isotropic radiated
power (EIRP) above the amount allowed per regulatory domain.
Table 7-1 indicates the channel
identifiers, channel center frequencies, and maximum power levels for each channel allowed by the
–A regulatory domain for a 2.4-GHz radio.
2.4 GHz Band (Draft IEEE 802.11n Version 2.0)
Ta b l e 7-1 802.11 b/g/n 2.4-GHz Maximum Transmit Power
Channel
Frequency
(MhZ)
North
America
ETSI Japan
B G B G B G
1 2412 17 17 17 17 17 17
2 2417 17 17 17 17 17 17
3 2422 17 17 17 17 17 17
4 2427 17 17 17 17 17 17
5 2432 17 17 17 17 17 17
6 2437 17 17 17 17 17 17
7 2442 17 17 17 17 17 17
8 2447 17 17 17 17 17 17
9 2452 17 17 17 17 17 17
10 2457 17 17 17 17 17 17
11 2462 17 17 17 17 17 17
12 2467 14 14 17 17
13 2472 14 14 14 17
14 2484 14 17