case DRX_OOB_MODE_A:
                if (
                           /* signal is transmitted inverted */
-                          ((oob_param->spectrum_inverted == true) &
+                          ((oob_param->spectrum_inverted == true) &&
                            /* and tuner is not mirroring the signal */
                            (!mirror_freq_spect_oob)) |
                           /* or */
                           /* signal is transmitted noninverted */
-                          ((oob_param->spectrum_inverted == false) &
+                          ((oob_param->spectrum_inverted == false) &&
                            /* and tuner is mirroring the signal */
                            (mirror_freq_spect_oob))
                    )
        case DRX_OOB_MODE_B_GRADE_A:
                if (
                           /* signal is transmitted inverted */
-                          ((oob_param->spectrum_inverted == true) &
+                          ((oob_param->spectrum_inverted == true) &&
                            /* and tuner is not mirroring the signal */
                            (!mirror_freq_spect_oob)) |
                           /* or */
                           /* signal is transmitted noninverted */
-                          ((oob_param->spectrum_inverted == false) &
+                          ((oob_param->spectrum_inverted == false) &&
                            /* and tuner is mirroring the signal */
                            (mirror_freq_spect_oob))
                    )
        default:
                if (
                           /* signal is transmitted inverted */
-                          ((oob_param->spectrum_inverted == true) &
+                          ((oob_param->spectrum_inverted == true) &&
                            /* and tuner is not mirroring the signal */
                            (!mirror_freq_spect_oob)) |
                           /* or */
                           /* signal is transmitted noninverted */
-                          ((oob_param->spectrum_inverted == false) &
+                          ((oob_param->spectrum_inverted == false) &&
                            /* and tuner is mirroring the signal */
                            (mirror_freq_spect_oob))
                    )