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Wilson 18" Building Mount Omni Antenna w/ Mount (Cables Sold Separately)

In Stock

Item Number: 2290



Sales Tax (?):

$0.00 tax collected outside of Illinois

This antenna does NOT include cabling. You must select a length of cable from the list (for the ultra-low-loss cabling, we bundle the connector you'll need to connect the cable to your adapter). If you already have a compatible cable you plan to use (this antenna has an N/Female connector), you may select the "I already have a cable" option at the bottom of the list.

How much cable should you use? Unless you plan on using an amplifier as well, we recommend using LESS THAN 50' OF CABLE to minimize signal loss. The longer the cable you use, the more signal you lose. Mounting the antenna outside and reasonably high up is recommended, but using long lengths of cable for the express purpose of mounting the antenna higher up is NOT worth it - you will lose more signal from the cable than you will gain from mounting it up higher. For example, using a 20' cable and mounting the antenna at the roof line would be better than using a 50' cable and running the antenna high up a pole on the roof.
Select a Cable (required) - details
You will need an adapter cable or connector to connect this antenna to your device. Simply select your device from the menu and we will include the appropriate adapter with your antenna. If you already own the necessary adapter, you can select the "I already have an adapter" option from the bottom of the list.
Select Your Adapter Cable or Connector (required) - details

Fast Facts About This Product:

  • This antenna is best for: Stationary home/office/building users who want to select their length of cable. This antenna can also be used in an RV/truck/car, but remember that the lack of a spring base increases the potential of damage if it hits anything on the road!
  • Compatibility: 700-1900mhz networks, which are used by most 2G, 3G, and 4G providers in the USA and Canada. Confirm which frequency your provider is using and make sure this antenna supports it before purchasing! Contact us if you need any assistance.
  • Height: 18" tall.
  • Cable: NO cable is included with this antenna. Various lengths are available; you can select your cable above.
  • Ground Plane: The Building Omni uses included radials as a built-in ground plane.
  • Weatherproof? Yes, this antenna is designed for exterior use.
  • Mounting Requirements: Mounting hardware is included to mount to any pole up to 1-3/4" in diameter or to flat surface.
  • Portability: This antenna is designed to be affixed to a structure and as such is not a very portable option.

Do a site survey before buying this antenna! If you're purchasing this to use in just one location, we strongly recommend doing a site survey first to determine whether the antenna will help your signal and performance and to give you an idea of what kind of results you can expect from it. Start here: Will an Antenna/Amplifier Help Me?

Included in this package:

  • Wilson 311203 antenna
  • Mounting hardware


  • Model: 311203 (formerly 301202)
  • Frequency range: 700-800 / 824-894 / 880-960 / 1710-1880 / 1850-1990 mhz
  • Antenna gain: 3.2db / 5.12db / 2.7db / 0.6db / 6.12db
  • Impedance: 50 Ohms
  • Cable: None included - select a cable from the menu above
  • Height: 18"
  • Connector: N/Female
  • Mount: Pole mount
  • Polarization: Vertical
  • Material: Fiberglass

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All Reviews (19)

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Only customers who bought this item from 3Gstore can write a review - these are all verified 3Gstore purchases

Date Added: 11/13/2015 by Jonathan t. (benton, LA)
Nice!!! I play online with att mifi. I was at 2 bars and -114 dbm. Now 4 bars and 78 dbm. It was super easy to setup. I love it so far today is the first day so i hope it keeps up the good signal. 3gstore was awesome also super fast shipping :)

Date Added: 08/06/2014 by Brian E. (West Sacramento, CA)
I bought this antenna to help pick up the verizon 4G signal that was going over my clients business, because it is sitting to below a levy and has very large trees, 50' to 100' tall around it. I attached to a old TV antenna on the roof and up 8'. The connection ping went from a slow 320ms to, wait for this, 30ms. Signal has been strong and reliable. No returns calls about bad internet connection.

Date Added: 05/07/2014 by Keith S. (Sweet Valley, PA)
My 4G router was dropping signal multiples times a day with the included antenna. With the Wilson 301202 antenna I now have 4-5 bars, from 1-2). By the way, I didn't have a chance to mount the antenna outside. I temporally mounted near my ceiling.

Date Added: 11/05/2012 by Robert T. (GLOBE, AZ)

Date Added: 07/30/2012 by jim a. (Grand Marais, MN)
Antenna is the bomb. now on the roof moved me from-97 to -105 to -88 - -86 and from 2 bars to a solid 3 three bars with a Verizon supply. Now it is back to DSL I had 18 years ago in Minneapolis MN.

Date Added: 11/08/2011 by Paul J. (Pinckney, MI)
Very simple install with excellent customer service during the sale. They ensured I had everything needed to complete the install as described.

Date Added: 09/29/2011 by Dennis J. (Navarre, FL)
I was right at the edge of the tower area. Put this up and got perfect connections.

Date Added: 09/22/2011 by COREY A. (THORNDALE, TX)
3G Rep, told me this was the best one to use out in the country, but this antenna was a waste of money. I wouldn't advise buying this antenna or shopping at 3G to my friends.

3Gstore Comments:
Hello, sorry that it isn't working for you. It really depends how "far our in the country" you are. It usually is a good idea to do a "site survey" at to see how good or bad your signal is. Antennas really do work and amplifiers increase signal even more. The problem is that every location is different and depending on how far away you are and what is in between you and the signal makes a huge difference. If signal is 20 miles away from you and by the time it gets to you, there is no signal left. Multiplying zero by anything still gets you zero. You do have a 30 day return privilege - so if you are not completely happy, email or give us a call.

Date Added: 06/02/2011 by Adam H. (Ironton, OH)
This antenna provided a consistantly stronger signal,

Date Added: 05/31/2011 by Robert B. (Cadillac, MI)
Very well made, you can tell it's a Wilson antenna from the quality. It works well to improve my signal to the Verizon 3G card.

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