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www.southgatearc.org
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FCC - No spread spectrum on HFThe FCC has responded to a request for clarification on the use of the ROS data mode and questions have been raised about the use of CHIP64 by US Radio Amateurs. In response to a request for clarification on the use of ROS, the FCC has reiterated that Spread Spectrum emission types are only authorized on the 222-225 MHz and higher frequency amateur bands. They also said: "The licensee of the station transmitting the emission is responsible for determining that the operation of the station complies with the rules. This would include determining the type of emission the station is transmitting and that the frequencies being used are authorized for that type of emission." CHIP64 is mode that US Radio Amateurs have used successfully on HF for several years. It is a Direct Sequence Spread Spectrum (DSSS) mode and would appear to fall in the same category as ROS. Read the FCC response on ROS on the Digital Radio Yahoo Group at The CHIP64 Digital Mode - Direct Sequence Spread Spectrum (DSSS) ARRL Virginia Section National Traffic System uses CHIP64 on 80m Digital Radio Yahoo Group
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