Need a help to find a long range Transceiver module

Hi,

I need a help to find a Transceiver module. which need to have a transmit range even 1Km or 2Km. Or else can I get this much of range by using an antenna ? if so which type of antenna is better ?

And also need to support multiple channels(8 channels are enough).

better if it has a SPI interface.but UART or USB also ok.

Regards to you all,

Kushan

WiFi 802.11g and a diy aluminum 20 inch dish has a 100 mile range

line of sight .

A WT54G Linksys WiFi / router can hook an SD card . find the holes

along the edge of PCB . Many ppl have been modifing the WRT54G

to divorce it from a PC and M$ InternetExplorer .

Ham Radio can use much higher power outputs on 2.45 Gigahrtz

WiFi channels .

Garage door openers … www.rfhope.com , about $8 each .