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  • Hawking Hi-Gain Indoor Corner 15db Wi-Fi Antenna (HAI15SC)
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Hawking Hi-Gain Indoor Corner 15db Wi-Fi Antenna (HAI15SC)

by Hawking

Price: £90.80 FREE UK delivery.
Only 5 left in stock.
Dispatched from and sold by SELECT ELITE.
2 new from £90.80
  • Increase Your Wireless Network Strength
  • Works with 2.4GHz 802.11b /g Wireless Standards
  • Extend your Network Range
  • Great for Large Conference Rooms or Open Spaces
  • East Installation (No Software Required)
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£90.80 FREE UK delivery. Only 5 left in stock. Dispatched from and sold by SELECT ELITE.

Product Information

Technical Details
Item Weight499 g
Product Dimensions26 x 16.5 x 6.4 cm
Item model numberHAI15SC
Wireless Type802.11B, 802.11G
Additional Information
Best Sellers Rank 337,838 in Computers & Accessories (See top 100)
Shipping Weight499 g
Date First Available6 Oct. 2006

Product Description

The Hi-Gain Corner Antenna is the perfect solution for providing Wireless coverage in very large rooms, conference halls or buildings. The high power level of the antenna ensures full wireless coverage. The Hi-Gain Antenna has been specifically designed for easy installation in the corner of a wall. This also allows for easier coverage of an entire building, room or wall. Hawking's Hi-Gain Antennae are designed to work with all Wireless Access Points, Wireless Routers and Wireless Network Adaptors that have

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Most Helpful Customer Reviews

3 of 3 people found the following review helpful By Mr. Selva S. Naidu on 27 Jan. 2009
I had bought this with the hope that it would solve WiFi deadspots in my home. It does improves signal strength in one direction but not enough to overcome concrete walls that crop up in older houses. So, it hardly solved any of the WiFi deadspots in my home. I eventually found the Devolo DLAN wired and wireless system a more effective solution.
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1 of 1 people found the following review helpful By Mr. M. Mcilhagga on 1 Mar. 2011
I was able to double the range of my WIFI through brick walls, etc. Better than replacing your WIFI box.
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Most Helpful Customer Reviews on Amazon.com (beta)

Amazon.com: 126 reviews
209 of 215 people found the following review helpful
Rip it apart! 9 May 2007
By desolder - Published on Amazon.com
This is a "deconstructive" review of Hawking's corner reflector. Basically I took it apart so you don't have to! BTW - I am an RF engineer, so I apologize if it gets too technical.

First let me provide a explanation of what a "corner reflector antenna" is. A corner reflector antenna is a very simple, but high gain type of antenna. It consists of a dipole antenna (a dipole is just a straight piece of wire cut in a precise way) and behind the dipole is an angled metal screen or plate which is called the reflector. The angle of the reflector is typically 90 degrees, which forms a corner and thus the name. The reflector focuses the signal so it is more concentrated, which results in higher gain versus a simple dipole.

Taking apart the corner reflector is straightforward, but it does take some time and muscle. I carefully but forcefully pulled on the gray plastic end caps. After some time, the end caps finally came off. This revealed an unlabeled, rather ordinary black "stick" antenna inside the white plastic pipe. It's probably a 5dBi collinear dipole. The antenna is connected to the coax cable via a panel mount SMA connector. I was able to remove this antenna, but it does take some torque because Hawking applied thread locking glue.

Based on it's construction, I have no reason to doubt the 15dbi gain claim. However, I seriously doubt the 90 degree vertical and horizontal beamwidths that the manual seems to claim. I guesstimate that 3dB beamwidths are in the order of 40 degrees horizontal and 30 degrees vertical, based on my experience with similar corner reflectors. This makes orientation MUCH more critical. If you are 15-20 degrees off, you could be losing half (3dB) of your signal! On the other hand, such a narrow beamwidth is a good thing if other people's AP's/client's are interfering. Any other transmitters outside of the main beam will be weakened, reducing your noise and improving signal quality.

Now to analyze the coax cable. The outer jacket is unlabeled white plastic, so you can't tell who made it or what type of cable it is. It's thin, about 1/8" thick . I cut off one end to see what's inside. The shielding is quite good. It's a dual shield, foil plus braid. The foil provides complete coverage. The braid is tin plated copper and has excellent coverage, probably 95%. The center conductor looks and cuts like pure solid copper, not copper clad steel. The center insulator (the dielectric) is a clear translucent, solid (not foam) plastic. When I soldered on an SMA pin, the dielectric easily melted! It's probably NOT teflon, but cheaper, higher loss polyethylene. Based on this, it's probably a RG-174 type cable, not the lower loss RG-316. Cables of this type generally have a loss of 0.6dB per foot at 2.4Ghz. The cable is 6 feet long , so you lose more than half (3.6dB) of your signal in the coax! Making a shorter cable and/or using better cable would help.

Considering how it's made, a lot of the negative reviews make sense. It's a 15dBi antenna, but you lose 3.6dBi in the cable so effectively it's only 11.4dBi. Plus if you don't point it within 15 to 20 degrees of your target (both horizontally AND vertically), you will lose even more signal. Used indoors, there is so much RF scatter that the actual direction of maximum signal can very often NOT be in the direction of the target due to signals being bounced around. You'll have to rotate the antenna in different directions vertically and horizontally to find the maximum signal. Used outdoors or in unobstructed area, just point it at the target and you're done. However, keep in mind that this IS NOT a weatherproof antenna, so don't leave out outside where the rain and sun will beat down on it.

Used properly, this antenna really shines. It provides a tremendous value for under $50. Antennas with similar gain will cost MUCH more.
43 of 51 people found the following review helpful
This thing is awesome ! 19 Mar. 2004
By A Customer - Published on Amazon.com
I have no idea what the person writing the review above was talking about. I had exactly the opposite experience with both products. I put the HAI15SC on a D-Link DI-624 802.11 G/B wireless router and saw a huge improvement !! I'm using three Apple Powerbooks with airport cards - the D-link is a great wireless router but the signal was pretty weak in our house (lot of walls). Put the HAI15SC in and the signal strength increased significantly in the entire house. Rooms that had not signal were now able to get small signal. Highly recommended ! Friends who bought this also experienced a benefit. On the other hand I did buy the D Link DWL G800AP repeater - went through 2 of them in fact - and neither of them worked. I returned them both after weeks of trying to get them to work and some 16 calls to D Link tech support. D Link tech support finally admitted that they were not sure why they did not work - it was a new product and maybe had problems. Take a pass on the D Link repeater and try the antenna - its a lot cheaper. The D Link repeaters do NOT work - they drop signal. Trust me - I tried have set up several networks. Been through three wireless routers, three antennas (I'm big on buying, trying, returning if it does not perform.) The HAI15SC works very well.
17 of 19 people found the following review helpful
Don't believe the box for a minute... 17 Oct. 2005
By Amazon Customer - Published on Amazon.com
I got this this antenna to attatch to my pcmcia orinoco wifi card (a MC->RP-SMA adapter, obtained off ebay, was required) in my laptop. The antenna cost me $30 after mail in rebates at CompUSA.

Testing it right next to my router, signal strength with:

No antenna: ~32db

the HAI7SIP: ~41db

for contrast, a (highly directional) Cantenna: ~55db

I then walked upstairs to my bedroom (the router is in my living room), closed the door and ran the tests again. This time signal strength with:

No antenna: ~7db

the HAI7SIP: ~22db

the Cantenna: ~38db

I want to comment that when I went to store the antenna, the way I did it was by bending down the the "blade" on to the base then wrapping the cord around the blade. On whim I plugged it back into my wifi card in this state, and I found that doing so increased my range tremendously. My signal about 10 feer from my router jumped from about ~41db to about ~54db. This is amazing and I hope it will act this way consistently.

I just want to make one more comment that the build quality on HAI7SIP is first class. The antenna feels quite solid which is always a plus.

So overall, I'm satisfied with the HAI7SP, and I think it was worth the money as it did increase my singal at rather distant ranges by a good bit, but at the same time I don't think it's anywhere near amazing, and I certainly don't think the 3x range increase advertised on the box could be achieved in real life conditions. Rather I feel it's an average buy, and thus I rated it 3 stars.
23 of 28 people found the following review helpful
pay no attention 17 Jun. 2006
By B. Goodyear - Published on Amazon.com
Pay no attention to the negative reviews of this product. RF links are all about math and the gain of this antenna produces a directed signal that is hundreds of times stronger that what you get out of one of those standard wifi omni antennas. The people frowning on it are likely trying to use a radio link in an environment where rf is just not feasible.

For the record, it improved the signal strength on my point to point from around 35% to around 90%.
7 of 7 people found the following review helpful
Amazing... 8 Mar. 2007
By Victor Choy - Published on Amazon.com
Verified Purchase
My house floorplan is extremely spunky. That also means that setting up my WiFi network was going to be extremely difficult.

Up until the point that I bought this antenna, I spent a total of $400 trying to get all my signal strength bars up to max, but rather, ended up getting mediocre connectivity, with occasional connection drops.

After installing the antenna, I get perfect signal, without the use of any repeaters in between. Hawkings is truly the best IMHO, especially when the quality of home/office networking gear is going to sh**. I just hope that the frequencies don't cause any long term health effects :)
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