isaacgerg wrote:
Hi,
I am hooked up to the BasicRx Daughterboard and wrote a simple applicate
using the GRC to survey the spectrum from 1MHz to 250MHz and run the user
tunable output through the WFM Demodulator. I can get FM radio stations in
the 88-108MHz region just find. However, I am also getting copies of these
stations at frequencies higher and lower than this range!!! It's as if the
frequency I request is out of range and the tuner wraps around. What's
going on here? When I tune to 50MHz, I expect to be at 50MHz, not some
other frequency!
On re-reading my first post, I realized it wasn't very clear. So,
to be more explicit:
A 0 - 32 MHz signal will produce the expected output.
Signals from 32 - 64 MHz will get mapped onto 32 - 0 MHz
(note the frequency inversion)
64 - 96 MHz will get mapped to 0 - 32 MHz
96 - 128 MHz will get mapped to 32 - 0 MHz
... and so on, up to the limits of the board.
@(^.^)@ Ed
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