Index: firmware/drivers/tuner/lv24020lp.c
===================================================================
--- firmware/drivers/tuner/lv24020lp.c	(revision 18053)
+++ firmware/drivers/tuner/lv24020lp.c	(working copy)
@@ -474,7 +474,7 @@
 
     /* start counter, delay for specified time and stop it */
     lv24020lp_write_set(CNT_CTRL, CNT_EN);
-    udelay(duration*1000 - 16);
+    udelay(duration*1000 - 24); /* CONSTANT! */
     lv24020lp_write_clear(CNT_CTRL, CNT_EN);
 
     /* read tick count */
@@ -684,10 +684,10 @@
 
     sd_set = tuner_measure(MSS_SD, 1000, 32);
 
-    if (abs(sd_set - 38300) <= 31)
+    if (abs(sd_set - 38000) <= 31)
         return 0;
 
-    return sd_set < 38300 ? -1 : 1;
+    return sd_set < 38000 ? -1 : 1;
 }
 
 static void set_sleep(bool sleep)
@@ -701,12 +701,12 @@
 
     enable_afc(false);
 
-    /* 2. Calibrate the IF frequency at 110 kHz: */
+    /* 2. Calibrate the intermediate frequency (IF) at 110 kHz: */
     lv24020lp_write_clear(RADIO_CTRL2, IF_PM_L);
     fine_step_tune(if_setcmp, 0x80, 8);
     lv24020lp_write_set(RADIO_CTRL2, IF_PM_L);
 
-    /* 3. Calibrate the stereo decoder clock at 38.3 kHz: */
+    /* 3. Calibrate the stereo decoder (SD) clock at 38.0 kHz: */
     lv24020lp_write_set(STEREO_CTRL, SD_PM);
     fine_step_tune(sd_setcmp, 0x80, 8);
     lv24020lp_write_clear(STEREO_CTRL, SD_PM);