[time-nuts] PN sequence generation using GPS

jimlux jimlux at earthlink.net
Fri Feb 18 02:06:31 UTC 2011


On 2/17/11 2:46 PM, Hal Murray wrote:
>
> lists at rtty.us said:
>> The key item here is that the system is going to work via amateur radio here
>> in the US. The FCC only lets you use three very specific PN sequences. The
>> three are called out explicitly in the rules. The requirement that they not
>> be reset while transmitting except by feedback is also called out explicitly
>> in the rules. So no fancy stuff with multiple spreaders and the like.
>
> Thanks, but I'm having trouble understanding that.
>
> The problem is "not be reset while transmitting except by feedback".  I
> usually use reset to mean set the system to a specific state no matter what
> the current state.
>

you *could* call the FCC and ask them...

Or, just build whatever, and wait for someone to complain, and say you 
misinterpreted the rules.  Unless you're a jerk, I suspect that they 
won't fine you or anything else.



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