user manual

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Cisco Aironet 1200 Seres Access Point Software Configuration Guide
OL-2159-05
Chapter 3 Radio Configuration and Basic Settings
Radio Configuration
Figure 3-8 AP Radio Restrict Searched Channels Page for the Internal Radio
The page lists all the channels in the access point’s regulatory domain. Click the Search check boxes
beside the channels to include channels in the scan for less-congested channels. All the channels are
included in the scan by default.
Receive Antenna and Transmit Antenna
Pull-down menus for the receive and transmit antennas offer three options:
• Diversity—This default setting tells the access point to use the antenna that receives the best signal.
If your access point has two fixed (non-removable) antennas, you should use this setting for both
receive and transmit.
• Right—If your access point has removable antennas and you install a high-gain antenna on the
access point’s right connector, you should use this setting for both receive and transmit. When you
look at the access point’s back panel, the right antenna is on the right.
• Left—If your access point has removable antennas and you install a high-gain antenna on the access
point’s left connector, you should use this setting for both receive and transmit. When you look at
the access point’s back panel, the left antenna is on the left.
Note The access point receives and transmits using one antenna at a time, so you cannot increase range by
installing high-gain antennas on both connectors and pointing one north and one south. When the access
point used the north-pointing antenna, it would ignore client devices to the south.
Entering Advanced Configuration Information
Use the AP Radio Advanced pages to assign special configuration settings for the access point radios.
The internal radio and the radio module both have an AP Radio Advanced page. Both pages contain the
same settings, but the Advanced page for the external radio module does not contain the Radio
Modulation and Radio Preamble settings. Figure 3-9 shows the AP Radio Advanced page for the internal
radio.