Sep 302012
 
VIRTUAL WAREHOUSE  for Wireless ISPs:
Data Alliance serves as a “virtual warehouse” for several large WISPs:
  • Data Alliance maintains stock levels for the items that they need
  • Major cash flow benefit for the WISP:  They order stock as they need it & only have to stock what they need this week
  • If stock are getting scarce, we give them preferential treatment:  We’ll hold stock for them
  • Our shipping is always the same day
  • Volume pricing for all items that they purchase
We spend our time and resources to make sure that we have the stock on hand to anticipate their needs – so they don’t have to spend time trying to find who’s got stock.
One of our WISP customers credits Data Alliance for enabling them to expand their WISP much faster because they can depend on getting the equipment that they need without a wait, and without paying second day shipping fees because we are close by and always ship the same day.
 Posted by at 6:40 pm Top WiFi Tips Tagged with:  Comments Off on WISP Solutions
Sep 212012
 

The 64MB version does not work with an older version of the Open-WRT kernel:  You have to download the latest kernel.

The 8MB version will work with ther older and the newer kernels.

If you use an older kernet, you will not be able to ping the router, and DHCP services will not be working.

Through the console cable, you will see errors like this:

VFS: Cannot open root device “(null)” or unknown-block(0,0)
Please append a correct “root=” boot option; here are the available partitions:
Kernel panic – not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

You can find and download the latest kernel here:

https://downloads.openwrt.org/attitude_adjustment/12.09-beta/ar71xx/generic/

openwrt-ar71xx-generic-hornet-ub-jffs2-sysupgra..> 04-Sep-2012 19:11
7242296
openwrt-ar71xx-generic-hornet-ub-squashfs-facto..> 04-Sep-2012 19:11

 Posted by at 12:51 pm Open-WRT Tagged with:  Comments Off on Hornet-UB 64MB version: Only works with latest Open-WRT kernel
Sep 172012
 

airMAX™ is Ubiquiti’s primary platform / protocol, and is mostly on their outdoor access points and bridges

AirMax 802.11n products:   AirMax MIMO 2×2 technology & dual-polarity antenna technology enable much faster data-throughput & higher bandwidth:  Therefore these technologies enable high concentrations of VOIP, streaming media, IP cameras, IPTV. AirMax products have a capital M in the sku or the name (example: NanoStationM2 sku NSM2).  For

Data Alliance has stock of almost all Ubiquiti items

Data Alliance has almost all Ubiquiti items in stock

maximum data-throughput & highest bandwidth: Use AirMax products that are MIMO / 2×2, and if an external antenna is required, combine with a dual-polarity antenna.

Unlike standard WiFi protocol, Ubiquiti’s Time Division Multiple Access (TDMA) airMAX protocol allows each client to send and receive data using pre-designated time slots scheduled by an intelligent AP controller. This “time slot” method eliminates hidden node collisions and maximizes airtime efficiency. It significantly improves performance in throughput, reduces latency, and increases scalability compared to all other outdoor systems in its class.

  • Intelligent QoS Priority is given to voice or video for seamless streaming.
  • Scalability High capacity and scalability.
  • Long Distance Capable of high-speed links up to 100+ km.
  • Latency Multiple features dramatically reduce noise.

See also:

 Posted by at 2:05 pm Frequency Bands: LTE, GSM, WiMax & WiFi 802.11 standards, Ubiquiti Gear Tagged with: , , ,  Comments Off on Ubiquiti airMAX: TDMA using pre-designated time slots
Sep 152012
 
 Posted by at 11:09 am USB WiFi adapters: Alfa Tagged with:  Comments Off on Alfa Network WiFi USB Adapters, Antennas, Mounts, Accessories, Access Points
Sep 122012
 
Ed Koloski
5:01 PM

Reply
to Data
 I’ve got to say, that is excellent customer service. Thank you!
I’ll send an email once I am back in town.Best regards,
Ed

On Wed, Sep 12, 2012 at 7:37 PM, Data Alliance wrote:

Hello,
Thank you for letting us know, we can most definitely initiate the process after you have returned, there won’t be any need for you to return the malfunctioning item.
If you can  give us a heads up when you’re back in town so that we may ship you a new one.
-Anne

On Wed, Sep 12, 2012 at 4:32 PM, Ed Koloski wrote:

Hello,

I recently placed an order, number 71699, for one antenna as well as a BNR2 magnetic mount. I have received both and verified that the antenna itself is functional, however the mount appears to have an issue.

The center conductor of the coax cable does not appear to be connected to the center pin of the antenna mount, I have verified this with an ohm meter. I have also tested the SWR of the antenna using this mount as well as another N connector mount I have on hand. When the antenna is connected to the new mount, its SWR is off the scale – when connected to my older mount, the SWR is at a reasonable 1.4.

I would like to return this antenna mount for a functional one as either the coax has a break, or it is not connected to the N connector.

One side note, the timing for this is somewhat unfortunate as I will be leaving the country on vacation on Friday 9-14-12 for just over a week. Would we be able to initiate the RMA process once I have returned?

Thank you,
Edward Koloski

 Posted by at 5:09 pm Customer Comments & Product Reviews Comments Off on … ” excellent customer service” …
Sep 022012
 

There are multiple merchants currently selling counterfeit AWUS036H on Google Shopping / Google Product Search!! (Nov. 2012).  We are working with Alfa to bring Google to eliminate those counterfeit items from their search site.

Data Alliance is working with Alfa to increase awareness of a proliferation of fake/counterfeit/phony, low-quality imitations of AWUS036H. The image below-left is an anti-counterfeiting sticker on Alfa AWUS036H-V5 shipped after Feb 12, 2010, to avoid rampant counterfeit of this item on online marketplaces and in Mexico.

During 2012, a company in Guadalajara, Mexico has been selling thousands of fake AWUS036H.   In late 2009/early 2010, Alfa removed five online marketplace listings that were counterfeit Alfa AWUS036H wireless USB adapters. In most cases, the seller’s location was China or Hong Kong.

A fake Alfa product only looks very similar on the outside: On the inside the hardware is inferior, the performance is sub-par, and there is no warranty from Alfa. Here are some tips to help ensure you are buying a genuine Alfa product, and to help keep the market clear of pirated products.

1. Always be sure to purchase from an authorized reseller of Alfa products. Authorized resellers have passed a multi-faceted test with Alfa to ensure they give the best customer service and support, and it also confirms they buy the products directly from Alfa to ensure they are 100% genuine. Alfa will be launching a reseller verification page very soon, but in the meantime you can confirm if a seller is authorized by contacting Alfa directly via their web site.

2. Be cautious of “great deals.” If it is too good to be true, it probably is. All of the removed listings mentioned in paragraph one were selling well below the regular market price. Sellers of pirated items can sell them very cheap because they are not quality items and cost very little to make.

3. When in doubt, contact Alfa directly with a link to the advertisement or web page of the seller. If you have already received a product and want to make sure it is genuine, email Alfa with the name of the place you purchased the item, the date of the sale, the serial number, and MAC address of the item you received.

AWUS036H is the only Alfa model that has been replicated as a fake, as of Sept. 2012.

Counterfeiting of name-brands has been happening with all sorts of technical products. For example, this BusinessWeek article (June 2009) tells about a midsize office supply chain in the US caught selling pirated HP ink products: In this case, they were an otherwise legitimate business but their owner decided to buy from a new “distributor” that offered lower prices than HP direct.

Data Alliance is the authorized distributor for Alfa in the Americas, since January 2007.

 Posted by at 12:14 pm Alfa AWUS036H Tagged with: ,  Comments Off on Beware of fake / counterfeit versions of Alfa AWUS036H
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