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The demand for those system is very high and we can't keep enough inventory for drop shipping. One night I can have 30 units and 24 hours later everything is gone! Do you have some amateur Radio experiences?

Well, I haven't pursued the license yet, but have made an air-powered AM radio, have you ever been to http://websdr.org/ ?? This place is awesome, you can change frequency digitally between thousands of frequencies -- edit: Its basically just a wide-band radio in the netherlands I believe but thousands of users can listen on all the frequencies :D

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