What we've done is mount the AP and antennae units higher than the cable run. That way moisture won't go UP the AP or antennae enclosures. You can also get weather enclosures to protect either the AP or antennae (or both separately).
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NOTE: When you are perusing these links, pay close attention to the horizontal and veritical azimuth. This will tell you what the signal pattern is like.
Do I have to have all of the antennas in a row ? Or it does not matter.
Is the spacing between the antennas important ? If so .. what are the measurements ?
What I've read is that the antennas should be a multiple of the wavelength apart from each other, but no more than 4 multiples. 5 GHz averages a little over 2 inches and 2.4 GHz a little under 5 inches. So, 2.4 GHz antennas should be 5, 10, 15, or 20 inches apart for example.
Keep in mind on the 1250, 2 of the 3 antennas are used for transmitting and the 3rd is for rx only. The reasons for the multiple antennas depend on the client stations and include MIMO (11n) benefits, transmit beamforming and Clientlink, and tx/rx diversity.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
This is the start of a display filter cross reference between Wireshark
and OmniPeek. The 1st installment is a table of advanced filters. More
filters will be added as time allows. It is a living doc, so check back
for changes every so often Please feel f...