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Old Dec 19, 2005, 04:40 PM
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900Mhz observes the same rules. That is, if it is not DS Spread Spectrum, then the effective radiated signal must be lesss than 500mV/meter at 3 meters. In practical RF power terms, that is 0.7mW driven into an antenna system with no realized gain. If the antenna system has gain, then the RF power drive must be further reduced to prevent exceeding the limit.

Most importantly, if the Tx is not specifically labeled as FCC Part 15 approved, it isn't license free for use in the USA.
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