I want to connect a Pocket PC PDA to a measurement device used in land surveying [total station] that has a standard RS232C serial port.

At the moment this is done using a custom serial cable. I would like to eliminate the cable and use a wireless connection that would work up to around 10ft [3m] from the measurement device. No great bandwith is needed, the connection to the measurement device is fixed at 2400 baud. Given that these devices work outside and in varying light conditions, I don't think that infrared is a viable option.

Does anybody know if there is a feasible, reasonably cheap way to connect a Pocket PC device to an RS232C port without a direct cable connection?

Many Thanks

krg