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| Thread ID: 44612 | 2004-04-24 11:29:00 | Wireless gear - best for between two buildings? | Chilling_Silence (9) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 231803 | 2004-04-25 02:48:00 | >have you tried using different channels John H? Yes, whetu, I have. I was on 6, so I tried 8, 11, then 1. Still no change. Thanks for the suggestion. John H |
John H (8) | ||
| 231804 | 2004-04-25 03:40:00 | By two buildings, do you mean high rise towers with two offices across from each other? ------ ------ | | | | | |<-->| | | | | | | | | | |__ |___ |__ |___ Or are they both on the ground floor? ------ ------ | | | | |__ |<-->|__ |___ Because if they are on the ground level then a cable can easily suffice . Otherwise, I'd just use two bridges . Our school IT Technician and I were going to do this between our houses . We have line of sight, but are about 1km apart . My plan was to get a Wireless network card (I got the DLINK 108Mbps ones) and put it in an old computer which also has wired . I was going to get a BIG antenna (Dlink Grid panel antenna - range of 10KM) and use the computer to act as a bridge . He would have the wireless access point and the same kind of antenna at the other end . As far as routers are concerned, I presume you mean DSL routers, then pretty much any will suffice . If you dont mean DSL routers, then it is even more likely that any will suffice . But Cisco are good :D |
Growly (6) | ||
| 231805 | 2004-04-25 09:29:00 | A group I do some work for was contemplating a wireless connection between two buildings with concrete block walls about 20 metres apart, but couldn't get it to work. We found that the easiest test for practicality was to have a cordless phone base in one building then walk towards the other one while using the handset. Whammo! The phone worked perfectly while approaching the second building but died as soon as going inside. Hence wireless LAN (which uses the same band) was no go. |
rodb (1561) | ||
| 231806 | 2004-04-25 21:57:00 | Did you try out the idea of an external aerial rodb? That is how I got through an offending wall... John |
John H (8) | ||
| 231807 | 2004-04-25 22:42:00 | > However, the external antenna was all the go until > the neighbourly interference (probably a 2 . 4Ghz phone > or a competing WLAN) . My external antenna is sited > horizontally rather than vertically . If the interference is a telephone system, it will probably be vertically polarised so you may be able to reduce the interference effects by using external antennas at both ends of the link and trying horizontal or diagonal polarisation, choosing the one that gives the most reliable results . Accuracy of alignment is very important for the best results, and there are two options for diagonal polarisation i . e . clockwise or anticlockwise . Your better experience with horizontal alignment may be due to the broader acceptance angle which makes accurate aiming slightly less critical . Cheers Billy 8-{) |
Billy T (70) | ||
| 231808 | 2004-04-26 06:40:00 | Hi Billy Thanks for the hint Billy T. At the moment my wireless access point has two antennae, one vertical (internal) and one horizontal (external). I tried switching them both to horizontal, but unfortunately it hasn't changed anything. The usb adapter in the house doesn't have the facility for attaching an external antenna so I can't try that. Maybe I could try adopting another adapter that does, so as to try that out. I don't know what it is that is so powerful as to disrupt the system like this. I have a Centrino laptop in the office almost next to the WAP, and even that one drops the network as well, and both the WAP and that laptop are less than a metre apart within a tin shed! |
John H (8) | ||
| 231809 | 2004-04-26 12:10:00 | They gave up and laid a lan cable instead! | rodb (1561) | ||
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