Hi, I'm designing a complex Cisco Unified Wireless solution with several AIR-LAP1310G-A-K9R (access point role), and have the following doubts:
- Can I use two Cisco antennas (same model) on the same equipment, for example: two 8.5dBi Patch (AIR-ANT2485P-R) to have greater coverage, and expect the WLAN controller to work fine with them?
- Can I use two different Hyperlink antennas, for example, one 9dBi Omni down-tilt (HG2409UDT-PRO) and one 12dBi Omni (HG2412U-RTP), OR one 6dBi omni (HGV-2406U) and 8dBi omni (HG2408U-RTP), to have greater coverage, and expect the WLAN controller to work fine with them?
Thank you so much.
The question becomes, is every client in the coverage area detectable by both antennas? If so, then they have effectively the same coverage area and you're fine.
However, if some clients can be seen by one antenna but not at all by the other, then those clients will have a completely unreliable wireless experience. If multipath for the "shared" clients causes the antenna selector to switch back and forth frequently, then those clients may be served well, but there's no deterministic way to guarantee that.
So, in your sector example, the clients at the outside of each antenna's angle, where the other antenna can't see them, might as well be on Cisco's golf course. They won't get signal unless the antenna switches towards them as a result of processing some other client's conversation.
Instead, go with a weaker gain (i.e. wider angle) antenna, or multiple APs, or both. A patch antenna might cover all 4 floors where your Yagi won't.