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does any one have an idea of the cheapet wirless solution that can go for 500m.
If not 500m, then what is the cheapest solution anf what is the max range?
The range is very dependant on the enviroment it is used in. 500m is easy if the fixed transceiver is 50m above the ground and you can see it from 500m away.
If there are several concrete and steel building in the path of the radio waves then it mostly won't work.
The cheapest option is 315MHz/433MHz modules that carry a data rate of typically 9600bits/second.
Apparently, i will just use 2.4 GHz, i know with lower frequency i can get more penetration. But because of required bit rates and frequency regulation i can only use the 2.4Ghz band.
I was thinking of ZigBee with mesh netwrok. However, ZigBee is still very new and apparently there is no a lot of success stories!
I checked Atmel and other comanies that produce the modules. I was wondering if i want to write a the sfotware for my application (Mesh network), how can i proceed with that? Any ideas?
Some drivel:
- Intel 2100 series Centrino uses wireless chips from Philips.
- IPW is Intel ProSet Wireless starting with 2200.
- Orinocco is actually a mess of manufacturers (in order) from:
Wavelan, Orinoco, Lucent, Agere, Avaya, and Proxim which use Prism
chipsets from Harris, Intersil, Conexant, Frisbee, and Javelin.
- Symbol uses various chip foundries.
- NWN is "No Wires Needed" in Netherlands. I think (not sure) they're
now part of Alvarion/Breezecom.
- Aironet is owned by Cisco.
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