It would be useful to have a function that returned the as-aliased frequency for
any given input frequency (up to the maximum input frequency of the A/D).
Trivial, I suppose, but less opportunity for brain farts that way.



Matt Ettus wrote:

Quoting mj <[EMAIL PROTECTED]>:



Am i missing something obvious?



Fixed it. the "freq1 = blah * 1e6" evaded me.

Still not sure on how to receive 433Mhz if anyone
knows.




As RF frequency rises from 0 to 32 MHz, the "digital" frequency goes from 0 to
32 MHz.  As RF frequency goes from 32 to 64, digital frequency goes back down
to 0.  It the repeats from there.

So you can receive 433.0 MHz at:

433 - (6*64) = 49 MHz.

433 appears where 49 would

49-32 = 17.

32 - 17 = 15 MHz

So tune to 15 MHz to hear 433.

This will all be much easier once there are proper RF sections available.

Matt


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