from rtlsdr import *

sdr = RtlSdr()

sdr.rs = 0.5e6
sdr.fc = 100e6
sdr.gain = 10

print 'Rs (pyrtlsdr):', sdr.rs
print 'Fc (pyrtlsdr):', sdr.fc
print 'Fc (librtlsdr):', librtlsdr.rtlsdr_get_center_freq(sdr.dev_p)