Home > Forum > Wireless LAN products > Wireless connection from home to router in the office
- This topic has 17 replies, 7 participants and was last updated 7 years, 10 months ago da Sergio Bertana.
-
AuthorPost
-
January 7, 2009 at 4: 36 pm #34758Authorlessnot ready yet
I have seen on your site internet navigation equipment that can be connected to a router located even at a distance of Km, our problem is the following:
We have telecom adsl business internet access at our office, one of our technicians lives 500 meters from this office and like him many others in this area do not have the possibility to connect to the adsl service due to lack of adequate facilities.
I am asking you if you have a HOMOLOGATED device available and not contrary to the law in force on communications authorizations, which can allow you to connect the technician's home to the router in the office.
January 8, 2009 at 8: 31 am #36259Sergio BertanaAdministrator ForumI recommend the product to solve your problem Nano Station at 2.4Ghz or 5GHz. Using two products, one connected to the office router and one at the technician's home, it is possible to connect the technician with the company network and / or with the Internet access router. The product can also be used outdoors, and as regards the connection distance I point out that all the distances reported refer to connections where the path between the antennas is clear, this path is called LOS (line of sight), but even if we have optical visibility between the two points this does not necessarily mean that a radio link is possible between them, any obstacles could fall within the Fresnel zone disturbing the signal. I attach for the download a brief guide on the Fresnel zone found on the web. With regard to the regulations in force on the use of the product, I refer to reading this post.
December 18, 2009 at 7: 34 am #36410AuthorlessIdleI have to create a point-to-point connection to share the internet in a distance of 2/3 km to 2 points that can be seen, one is 30 meters high from the sea the other at 250 meters. I have already porvato with 2 Gregorian antennas but nothing…. the only thing from the base point where the signal starts is a high voltage cable nearby. What should i use?
December 18, 2009 at 7: 42 am #36411Sergio BertanaAdministrator ForumBut the distance you are talking about should be easily overcome, I find it strange that he could not overcome it. The solution you tried uses two Gregorian antennas, but what is the total gain in dBm of the transmitter + antenna and of the receiver + antenna?
We have several customers who have made connections between two points even at distances much greater than the one you requested both using Power Stations and Nano Stations. The transmission power is required by law to:
(100 mW) 20 dBm EIRP on 2.400-2.483,5 MHz
(1W) 30 dBm EIRP on 5.470-5.725 MHzSo both models can reach this limit largely (They are self-limited by the software by setting the country in which they operate). But while the antenna of the Nano Station has a gain of 10 dBi that of the Power Station has a gain of 18 dBi, and with the same sensitivity of the -97 dBi receiver, the Power Station certainly guarantees a much greater transmission distance.
Some additional notes on device placement.
Attention to the Fresnel zone of the signal, the antennas must be positioned high from the ground and the area under the antenna must be free.The antennas must be visually visible, houses and other obstacles, even trees have severe limitations on the signal. I honestly don't know the possible limitations given by high voltage cables.
August 24, 2011 at 2: 10 pm #36901AuthorlessIdleI should take the ADSL signal from the company to the house, about 350 mt. From what I read on your site I should buy the 2 or 5 picostation, right?
What do you recommend?
The company already has a swicth. Can I connect directly to one of its ports?
August 24, 2011 at 2: 15 pm #36902Sergio BertanaAdministrator ForumWhat you need to create is a bridge between two points, the distance is minimal so there are no particular problems, as long as the two antennas are in optical view. I don't recommend the Picostations which are equipped with an omnidirectional antenna, but rather the ones NanoStation Loco M 2.4 / 5GHz. The choice of model is personal, but since you make a bridge I recommend 5Ghz, you have to configure the two Nanostations in bridged mode, one access point and the other station. The Nanostation access point connects it directly to the company switch, in the home if you have only one PC you connect it directly to the Nanostation, or put a switch. If you want to create a wireless network inside your home, I recommend using a Picostation configured as an access point and connected to the Nanostation to radiate the signal throughout the house. Here I recommend the 2.4GHz version which is more compatible with all devices, even those of old construction. If the house is very large you can use several Picostations configured as WDS access points, in practice only one of the Picostations is connected with the network cable, the others are only powered (See post).
November 22, 2011 at 5: 18 pm #37042AuthorlessIdleI engage in this discussion because what I also have to create is a wireless connection (bridge) to extend an ADSL between a company and a house just under 2Km away. I have read several posts about it but I still have some doubts about the equipment I should buy.
The antennas would both be positioned at about 15m from the ground on the roof of the two buildings, I have no way to verify if there is perfect visibility between the two antennas and in between there are several buildings of height that should not exceed the antennas.
For more guarantees of reliability, could I think of Rocket M 5Ghz instead of NanoBridge? Or should I even upgrade to PowerStations? Do the two antennas have to be identical or can I take them of different powers?
November 23, 2011 at 8: 05 am #37043Sergio BertanaAdministrator ForumThe distance to cover is not much, but I am perplexed regarding the optical non-visibility between the two points, to have a good connection it is important that the Fresnel transmission area is free (See FAQ). In your case, the buildings between the two points could occupy part of the Fresnel zone reducing the range of radio communication. NanoBeam, the Rocket M and the PowerStation are disproportionate to your need. It is not important that the antennas are the same, but since you are building a bridge it is assumed that the power requirements are the same for both points.
November 23, 2011 at 1: 32 pm #37047AuthorlessIdleThanks for the answers, trying to do a simulation with the Ubiquity calculator, the Fresnel zone should be within a radius of about 8 m from the LOS maybe it is worth the 'risk'. Then I am not interested in having full bandwidth, 1Mbit would be enough for me.
Being able to choose between 2 and 5 Ghz does it make sense to choose a lower frequency to possibly have more chances in case of obstacles or does it have no influence?
November 23, 2011 at 3: 22 pm #37048Sergio BertanaAdministrator ForumThe cost of the pair of NanoBridge is not excessive, so the attempt is not too expensive. The antenna of the NanoBridge is not excessively large (40 cm) so even putting a pole slightly higher to have more Fresnel free zones should not have too many problems with the wind. As an alternative to the NanoBridge you can use two AirGrid M which, being a grid, do not offer wind resistance. In this case the maximum theoretical band drops to 100 Mbs which even in the worst case far exceeds your needs.It is however true that the use of a lower frequency guarantees a better connection, even if between 2,4 and 5 Ghz I don't think there are big differences.
December 9, 2011 at 4: 30 pm #37059AuthorlessIdleIn the end I opted for a pair of AirGrid M 23dB, the test did not have the desired result but I think we can work on it.
I fixed the Access Point dish on one side and on the other side, not having optical visibility, I fixed the Station dish on a temporary pole held by hand to 'find' the AP signal. For a few seconds I found the AP signal with a power of about 1/6 of the maximum, so also quite satisfactory if it had been 'constant'. In fact, the pole was not fixed but held by a person who even moving a few mm caused the connection to drop, so in practice I didn't even have time to do a simple 'ping' test.
The idea is to repeat the test also fixing the second antenna at a greater height but I was wondering how much the polarization can affect my connection. Now both dishes are with vertical polarization, is it possible that by changing the polarization they improve performance (unfortunately ignorant dream on the subject)?
October 9, 2015 at 3: 08 pm #39098AuthorlessIdleHello, in case it is not optical sight, or there are taller buildings between the 2 antennas, and the distance is short 400-500m, which device can you recommend?
October 16, 2015 at 9: 58 am #39099Sergio BertanaAdministrator ForumIf you ask a technician which device to use, no one will tell you. The theory says that if there is no optical visibility, communication on such high frequencies is very difficult, but in reality WiFi devices do not always read books, and therefore not knowing that they cannot work, they also work. I have clients who have made WiFi connections between home and basement, but we are all in the testing field so I cannot advise you. If you need to make this type of connection since the distance is short, you could also try some Bullet and two omnidirectional antennas with good gain (See SCO246 / 9).
February 25, 2016 at 10: 08 am #39415AlbertoParticipantI read the post in which you recommend NanoStations to create a link between two buildings but I also see that you indicate NanoStation 2,4 as no longer available and 5 as "while stocks last". Are products no longer available? Should I foresee other models?
Do I have to make the link between a house on the fourth floor and an office on the other side of the courtyard (optical distance about 50 meters) without obstacles, so do I have to install two devices, one on each side?
February 25, 2016 at 10: 46 am #39416Sergio BertanaAdministrator ForumThe post was a few years ago, and with the speed with which products are obsolete, it is still a coincidence to find traces. However, the whole NanoStation family has grown into NanoStation M, so you can use two NanoStatiom M to 5 GHz for your application. I recommend adding the NanoStation to every NanoStation support for universal pole mounting in order to better manage the alignment.
-
AuthorPost
- You must be logged in to reply to this topic.