Over Wifi.

En EEUU, los canales óptimos a usar en puntos de acceso cercanos o adyacentes para eliminar el solapamiento entre canales y minimizar las interferencias son tres: el 1, el 6 y el 11. En Europa, puesto que tenemos dos canales más disponibles que en EEUU, el 12 y el 13, podemos usar la combinación 1, 6 y 11, la 2, 7 y 12 o la 3, 8 y 13, pero sin duda alguna, lo más conveniente es separar un poco más los canales usados y que la diferencia entre ellos quede en 30 MHz. Por tanto: En Europa, los canales más óptimos a usar en puntos de acceso cercanos o adyacentes para eliminar el solapamiento entre canales y minimizar las interferencias son tres: el 1, el 7 y el 13 . channel frequency (MHz) U.S. and Canada Europe Spain France Japan Australia Venezuela Israel 1 2412 Yes Yes No Yes Yes Yes Yes No 2 2417 Yes Yes No Yes Yes Yes Yes No 3 2422 Yes Yes No Yes Yes Yes Yes Yes 4 2427 Yes Yes No Yes Yes Yes Yes Yes 5 2432 Yes Yes No Yes Yes Yes Yes Yes 6 2437 Yes Yes No Yes Yes Yes

En España se permite el uso de los canales  36-64  y  100-140 , al igual que en el resto de Europa. La potencia máxima depende del escenario, pero generalmente sería 23 dBm y 30 dBm respectivamente para equipos nuevos con marcado CE a partir de 2015 (ETSI EN 301 893 V1.8.1). https://www.youtube.com/watch?v=9DG0Q1CRHeQ&feature=youtu.be

How to get 1.3Gbps throughput over WiFi Most manufacturers advertise impressive speeds of up to 1.3Gbps (Gigabits per second) for their latest WiFi gear.  That’s pretty quick. However, WiFi is a half-duplex technology that relies on substantial protocol overhead to transmit and receive. 1,300Mbps is actually only roughly 650Mbps in the equivalent wired domain, the domain that we are used to comparing speed and throughput.  Also, that target of 1300Mbps will not have a sustained throughput rate like a wired connection, it will be decidedly ‘spotty’. That said, to get 1.3Gbps [half-duplex] throughput on your WiFi, start with a high performance enterprise-grade wireless Access Point (AP) and a modern high performance laptop i.e. minimum of 3x antennas built-in. Next, we need to remove everybody else’s devices.  Turn off EVERY other WiFi capable device within 100 metres.  This includes all devices outside of your control.  Neighbouring WiFi modems and wireless Access Points, al

Moo-MIMO I readily admit that I could be all wet on this blog, so I have posed the title as a request rather than an assertion. I am going to state my current opinions on various aspects of 802.11ac Wave-2 technology, as it relates to enterprise customers, in the hopes that if I’m off-base, someone smarter than me will help me understand the error(s) of my thinking. If receive no arguments, or instruction, regarding the information listed below, then I will make the (hopefully correct) assumption that my current opinions are correct.  I’m going to go through a variety of Wave-2 related topics and list my thoughts – in no specific order. Transmit Beamforming (TxBF) * No WiFi Alliance certification and no certified equipment * High channel overhead due to channel matrix feedback for every participating client. * Not needed at short range (because RSSI is already plenty high) unless you’re trying to do MU-MIMO (which has even more overhead). * Not good at long r

The WLAN provides connectivity for data and voice for employees, guests, and the Internet of Things (IoT). Regardless of where the users are, wireless users need an excellent experience when using data and voice wireless services. More devices with critical functions are moving to the wireless medium making the WLAN increasingly important. And compared to before the time everyone used the WLAN, zero downtime is now expected of the WLAN. An outage of the WLAN has the same effect as an outage on the wired network. You, the engineer, is responsible for managing functions of the WLAN including RF management and mobility. Here are 5 Wi-Fi tips you can implement now on your WLAN to improve the wireless experience of your users. AP Orientation Install the AP and/or antenna properly. Know what the propagation is for each so you can install it with the correct orientation. These are known as the Azimuth and Elevation diagrams. There is a diagram for 2.4 GHz and 5 GHz. The wrong orien