Posts Tagged ‘TDMA’

RouterBoard SXT 5HnD

Friday, February 11th, 2011

Every day new surprise – here one from wisp supplier Mikrotik

Whole new outdoor cover design for 5ghz devices.

200 MBps, Dual Polarized Wireless Device with 802.11n and Nv2 TDMA Technology Support

RouterBoard SXT 5HnD features:

* Solid all-in-one design: quick and easy to mount
* Tower friendly one hand enclosure access
* 5GHz 802.11a/n wireless onboard
* 16dBi (+/- 2) dual chain antenna built-in
* Extended L2MTU support to avoid fragmentation overhead in MPLS, QinQ etc.
* Box contains: one SXT unit, PoE injector, 24V power adapter, mounting bracket, metallic mounting loop.
* Tx Power: 26dB Max
* Antenna Gain: 16dB (+/- 2dB)
* RAM: 32MB
* Integrated Wireless: Yes
* Wireless Standards: 802.11a, 802.11n
* Power Options: Power over Ethernet: 10..28V DC (except power over datalines).
* Temperature Range: -30C to +80C
* Dimensions: 140 x 140 x 56 (mm) Weight: 265g
* Operating System: MikroTik RouterOS v3, Level3 license




More Info About UBNT Antennas

Saturday, October 17th, 2009

There is a picture of 5ghz dish antenna on the slides from ubnt presentations.

Ubiquiti has an expanding line of dual polarized antennas that mate to the Rocket radio.

ubnt 5ghz dish feed

ubnt 5ghz dish feed

MIMO Sector Antennas


Ubiquiti Networks airMAX TDMA MIMO technology

Wednesday, September 23rd, 2009

airmax tdma

The advantages of Ubiquiti Networks airMAX TDMA MIMO technology:
– 300 + subscribers per sectored base station
– 150Mbps + Point to Multipoint speeds
– Low Stable latency responses for VoIP and Video applications as network scales

Be one of the first in the world to try the airMAX MIMO technology and place your order today and we will ship your order as soon as equipment becomes available by the end of August.

Time division multiple access (TDMA)

Technology used for example in GSM networks, Motorola Canopy, DVB, etc. This is a smart and sophisticated system sharing one frequency supporting multiple users on an accrual basis. Each of the users, who share the frequency, has a dedicated time slot. This is in very rapid succession of individual transmissions creates a transmission hannel, called timeslots, used for communication between client and base station unit (access point).


** To get full AirMax performance, all radios have to be AirMax products.

** AirMax is not compatible with AirOS 3.x or any other manufactures’ products or OS.

** Non-AirMax UBNT products and other manufactures’ products cannot be upgraded to an AirMax product.

And from
If you have AirMax on, and you take note of proper installations signals and fade margins, then you can reach in upwards of 100 user’s. However you must have the bandwidth to support this.