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Old January 11th 05, 09:01 PM
Dave Platt
 
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In article ,
Paul Burridge wrote:

Spread Spectrum = Legalized Jamming.


Is it even legal for hams, though??


Yes, with restrictions. See Part 97 section 311 for the detailed rules.

Briefly:

- SS is allowed, but must not be used for the purpose of obscuring
the meaning of the transmissions.

- SS transmissions must not cause harmful interference to non-SS
stations, and must accept all interference from non-SS stations.

- SS transmissions are limited to 100 watts, and if over 1 watt must
implement automatic transmitter power control which limits power to
the minimum needed to maintain a specified SNR.

- SS stations can be ordered to shut down or restrict their
transmissions, and/or required to maintain a complete record of
information transmitted via SS.

If I recall correctly, the FCC rules used to restrict amateur SS
tranmsissions to using certain specified coding techniques, but this
restriction appears to have been relaxed. I infer that the broader
rule about using publicly-documented modulation techniques is the one
which now applies.

--
Dave Platt AE6EO
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