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Cisco Aironet 2.4GHz Diversity Patch Antenna, Clearance

Cisco Aironet 2.4GHz Diversity Patch Antenna, Clearance
Cisco Aironet 2.4GHz Diversity Patch Antenna, Clearance
Cisco Aironet 2.4GHz 6.5dBi Antenna with RP-TNC connector. Compatible with Aironet 1200 and 1240 Series Access Points. This antenna is pre-owned in good condition.
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Cisco Aironet 2.4GHz Diversity Patch Antenna, AIR-ANT2012, Clearance

The Cisco Aironet AIR-ANT2012 is a 2.4GHz, 6.5dBi diversity patch antenna which is compatible with Cisco Aironet 1200 and 1240 series wireless access points. To determine if the AIR-ANT2012 is the correct component for your wireless network, please see the information below, or contact us.

The Problem:

Deploying wireless technology in today's diverse environments requires using hardware and software capable of offsetting and eliminating some of the common negative effects these environments have on wireless signals. Large, cluttered spaces filled with metal shelving and racks, coupled with the varying composition of structural components such as walls, ceilings and roofs, offer an array of factors that lead to poor network performance and, in some instances, failure. This condition is known as Multipath Distortion and can lead to Packet loss, decreased bandwidth, and signal nulling, which can wreak havoc on a network and cause loss of productivity and data.

When signals reflect, refract and diffract off objects, it can delay the packet's arrival and can harm the integrity of the packet as well. The receiving access point will then get multiple versions of the packet and have to shift through them to determine which one it will use. This can confuse the access point, causing errors.

The Solution:

By deploying a Diversity Antenna, you can minimize, if not eliminate, some of these negative effects. Diversity utilizes two antennas instead of one to essentially “pick” the best signal. Due to the antennas being in separate physical locations they are able to sample two different zones in the transmission range. This increases the likelihood the access point will field a signal that’s usable. It will "see" the same signal from two different points of view, compare them, and then pick.

In addition, the 802.11 wireless standard requires that the access point receiving the data send an acknowledgement packet confirming receipt. If the data is corrupt, null or takes too long, no acknowledgement packet is sent and the transmitting access point will re-send. The more bad data, the more re-sent packets and the longer the packets in queue will have to wait to be sent from the transmitting access point.

Best Practices:

  • Diversity is best used in manufacturing facilities, mills, warehouses, etc. 
  • Use diversity to cover only one cell at a time. 
  • Conduct a site survey to identify the final mounting position based on best reception and absence of null points. 
  • When using diversity antennas that are not in the same housing, the distance that separates them should be a multiple of the frequency (i.e. 2.4Ghz has a wavelength of 4.92", so they should be roughly 5", 10", etc. apart), but should not be more than four multiples apart.
Condition: Clearance, units are yellow from sun damage
Model/Part#: AIR-ANT2012
Availability: 5 in stock  
Ships: Monday  
Weight: 0.63 lbs  
Cisco Aironet 2.4GHz Diversity Patch Antenna, Clearance  $18.31

What does "In Stock" mean?

We currently have 5 of this product (part number AIR-ANT2012) in inventory and ready to be shipped from our Buford, GA warehouse. The stock counts reflected for each of our products are real-time numbers. We go through great lengths to keep these numbers as up to date as possible to be sure we have quantities on-hand and available to meet the needs of our customers. It is extremely rare that the stock quantity reflected here is inaccurate.

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When a product shows a future ship date it means one of two things. 1. If the product is in stock, it means our shipping deadline has passed and we will ship the product on the next business day. 2. If the product is not in stock, or is marked as “Available”, it means we will order this product when we receive your order and ship as soon as possible. The date displayed is a pretty accurate estimation of when your order would ship, should you place it today. We typically meet or exceed all ship date estimations.

If you need to know exactly when you can expect to receive this item, or if you need it faster than the date displayed on the website, please call us; there are sometimes other options for getting items to you faster (like shipping directly from our vendor, offering you an alternative item, etc).

What does "Qualifies for FREE Shipping" mean?

This product (part number AIR-ANT2012) qualifies for our FREE Standard Shipping offer. If your order total exceeds $99, and is made up of items that qualify for Free Standard Shipping, you will receive free shipping on the order, or those items. Basically, certain items in our store do not qualify for free shipping due to size or weight, and this is not one of them! As always, you are also free to upgrade to other shipping methods including Ground and Express services to have this item as quickly as 10am next business day.

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