WWV receiver
On Tue, 24 Jan 2006 17:20:35 GMT, "Michael A. Terrell"
wrote:
Joel Kolstad wrote:
"xpyttl" wrote in message
...
However, depending on where you are, you can typically only hear WWVB for a
small part of the day.
Does a bigger antenna help? Or is there just so much more background noise
than signal that it's a lost cause?
Hmm... isn't the data rate something like 1bps? Maybe they could do some
direct sequence spreading at 100Hz or so and improve the link margin a handful
of dB... :-)
If the problem is more or less random noise, what is the point of
spreading the transmit signal, since the same noise density would
appear in a specific bandwidth after despreading.
And lose the ability to be used as a frequency standard?
The GPS signal is DSSS and it can be used as a time and/or frequency
standard.
Paul
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