microcontroller - Suggestions for a Point-to-Point reliable Wireless Communication Module

I've to implement a wireless communication system. Details are as follows.

• Range is about 600m


• Point-to-point communication


• No LoS is available. (but not highly obstructed)


• Won't need much higher data rates.



• Should be reliable.


• No constraints with supply power, size etc...


• Intended to handle with PICs of Arduinos.


• Price is not a major issue (but prefer a reasonable price..)

Please point me to a proper transceiver module that can be used for the purpose. Don't have prior experience with wireless modules (so, you can assume fine details and then let me know of them), a straight answer is much appreciated..

Thanks!

Answer

You ask about the Xbee-Pro 900.

As the name suggests this works in the 900 MHz. The datasheet mentions a LoS range of 3 km, but since you don't have LoS that may be considerably less. The module has an RF connector, though, so you can connect an external high-gain antenna, which, again according to the datasheet, would increase the range to 10 km LoS. Should be enough for your application.

Your link is to an eBay reference. I wouldn't buy from sources like that. For Sri Lanka Digi has a distributor in India, which will probably give you better support. (Many product you buy on eBay you can't get any support for at all.)

Further reading
Xbee-Pro 900 Manual