RS-232 Rf module

If you just want an RF module that takes in and spits out RS-232, why do you care whether the RF transceiver uses CDMA, TDMA, FSK, or any of the other bazillions of modulation/division schemes out there?

I suspect your cheapest solution would be to purchase RS-232 to Ethernet converters and then just use off-the-shelf 802.11g WiFi equipment; it easily meets your speed and distance requirements. However, obtaining a converter that works at 1.25Mbps "RS-232" may be pretty challening; that's much higher than usual.

---Joel

Hello Ayman,

Check out Nordic, they have serial port RF chips:

Regards, Joerg

Joel, The main project is a CDMA Communication System, simply it is my graduation project.

I do not care about the RS-232 interface or whatever interface, just it was the preferred since it is already attached to the Spartan-3 board from Xilinx.

Sure I concern about CDMA since it is my project. The 1.25 Mb/s is the spread spectrum data not the data rate itself (9.6 kb/s). In CDMA, Bandwidth is scarified for other purposes, like security, anti jamming.......

Really I have tried to use the USB Bluetooth dongle with the USB 2.0 & Bluetooth 2.0, cores embedded on the FPGA but unfortunately I found no data sheets for this widely available device so I turned to RS-232.

Joel, The main project is a CDMA Communication System, simply it is my graduation project.

I do not care about the RS-232 interface or whatever interface, just it was the preferred since it is already attached to the Spartan-3 board from Xilinx.

Sure I concern about CDMA since it is my project. The 1.25 Mb/s is the spread spectrum data not the data rate itself (9.6 kb/s). In CDMA, Bandwidth is scarified for other purposes, like security, anti jamming.......

Really I have tried to use the USB Bluetooth dongle with the USB 2.0 & Bluetooth 2.0, cores embedded on the FPGA but unfortunately I found no data sheets for this widely available device so I turned to RS-232.