Quote:
Originally Posted by esquared
If our new radios continue to have problems, I plan to run a poor man's RS103 test (1 V/m, 30MHz-9GHz) in a 3m shielded room to see if I can cause the problem to crop up at a specific frequency range. I might be able to push the field strength with some hacking up to 5 V/m from 1-8GHz, which includes the cell phone band.
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Esqaured,
The modems operate in the 918MHz FRC band. So most cell phone interference is from cell phones operating just under 900 MHz and obvious FRC radios and Ham operators in the adjacent band. I suspect you might find that interference is not as big a problem as the AGC overload caused by nearby signals forcing the input gain down.
Please check for EMI as well, I think it will prove to be useful data.