Solved freq unit problem

uhd_cpp/uhd_spectrum/uhd_device_win32.cpp

@@ -267,7 +267,7 @@ quint64 uhd_device::set_center_freq(const quint64 freq_in_hz)
     double freq = 0;
     UHD_DO(uhd_usrp_get_rx_freq(usrp, m_channel, &freq));
     fprintf(stderr, "Actual RX frequency: %f MHz...\n", freq / 1e6);
-    return (quint64)(freq * 1e6 +.5);
+	return (quint64)(freq +.5);
 }
 double  uhd_device::set_sample_rate(const double sprate)
 {