We have a CR1000 data logger. The distance between the Data logger and the Computer in the Office is approx. 300 m (flat area). We would like to transfer data wireless. I think that we had better to communicate by RF modem. My question in that point is:
1) Can we use the BTWIN Model: BM1001 wireless bluetooth RS232 serial adaptor for communication with CR1000?
http://www.widecastint.com/english/Bluetooth-RS232_adaptors.asp
If yes. How we can do it. Should we write in the program some commands. If No, should we use only RF modem produced by Campbell? Here, RF modem for this purpose is very expensive (more than 3000 USD + tax (for receiver and transmitter)). Is there any costly type RF modem for the communication?
Levent
* Last updated by: Levent on 6/7/2009 @ 5:28 AM *
According to Wikipedia, the maximum allowed transmit power for a "class 1" bluetooth device is 100 mw with an associated approximate range of 100 meters. You could, perhaps, extend this range somewhat using directional or higher gain antennas but I doubt that you would achieve the 300 meter range that you specify above.
I am not sure where you get the $4000 USD price from for radios or which particular radio you had in mind, but I believe that the RF401 (or RF411, Rf416 depending upon your country of operation) is priced for much less than this and should provide adequate performance for your application. There may be other vendors data radios that would work but the RF401 would give you much less integration hassle.