What is WLAN antenna?

WiFi Antenna (WLAN antenna) is installed on wireless devices like WLAN AP to reinforce signal strength. Wireless device will radiate signal in air at specified frequency 2.4GHz or 5.8GHz through WiFi antenna/ WLAN antennas and allow other WLAN devices like NB or smartphone to get signal at same frequency range.

Why do Wi-Fi cards have two antennas?

A dual antenna on either the router or the end user device offers a solution to the problem of Wi-Fi fading, dead spots, and drop-outs. If one of the antennas falls into a dead spot, the device can switch to the other antenna, which will most likely provide a usable signal.

What is dBi antenna Range?

dBis tend to vary with the most common indoor WiFi router antennas designed to work at 4-9 dBi, while outdoor antennas range between 15 and 24 dBi. outdoor antennas have better dBis than indoor antennas as they are directional antennas used in point to point and point to multipoint connections.

Is there a difference between 2.4 GHz and 5ghz antenna?

A 2.4 GHz connection travels farther at lower speeds, while 5 GHz frequencies provide faster speeds at shorter range. Your choice of 2.4 GHz or 5 GHz will depend on where and how you use your WiFi connection most.

Can Wi-Fi card work without antenna?

Polypheme. Yes, wifi chips do not have integrated antennas and thus require them. FYI, wired Ethernet will always be faster then wifi, both is mbps and in ping/latency (time it takes to send data to the server).

Do you need both antennas for Wi-Fi card?

Generally speaking, wireless cards have two antenna connections and you should use both.

Is a higher dB antenna better?

The higher the dBi number of the antenna, the higher the gain, but less of a broad field pattern, meaning that the signal strength will go further but in a narrower direction, as illustrated in the diagram below. Back in the days of 3G, an antenna with a single output was fine.

What does antenna dB gain mean?

Antenna gain: is the relative measurement of an antenna’s ability to direct or concentrate the radiated signal emitting from it. Gain is measured in Dbi (decibels relative to an isotropic radiator) or Dbd (decibels relative to a dipole radiator).

Does Deutsche Bahn have WiFi on trains?

WiFi at Deutsche Bahn stations and on ICE trains WiFi on board trains and at stations Free, uninterrupted WiFi is available on all ICE trains to Austria, France, Belgium, the Netherlands and Switzerland. With your WiFi-enabled device, you can access the internet at over 125 stations, in DB Lounges and on board ICE trains.

What kind of antennas does DBS offer?

Our expertise in these high-tech antennas includes TACAN, DME, IFF/SLS, Glide Slope, Localizer, EPOL VDB, ADS-B/UAT, Multilateration, GPS, and CD/FTS. dBs stays at the forefront of technology and we are committed to keeping our systems up to date as technology develops.

How do I use wifi@db when I travel?

Once you have logged in, you have continuous access to WIFI@DB at selected stations as well as on trains and buses. Thanks to this, you can use DB’s free wifi network from the moment you board to the moment you disembark. When you travel, simply connect to DB’s company-wide WIFI@DB network like normal.