diff --git a/src/zapit/src/frontend.cpp b/src/zapit/src/frontend.cpp
index e0cd856bca..ee65441d71 100644
--- a/src/zapit/src/frontend.cpp
+++ b/src/zapit/src/frontend.cpp
@@ -1712,8 +1712,8 @@ uint32_t CFrontend::sendEN50494TuningCommand(const uint32_t frequency, const int
 			cmd.msg[4] = t & 0xFF;
 		}
 		fop(ioctl, FE_SET_VOLTAGE, SEC_VOLTAGE_18);
-		usleep(15 * 1000);		/* en50494 says: >4ms and < 22 ms */
-		sendDiseqcCommand(&cmd, 50);	/* en50494 says: >2ms and < 60 ms */
+		usleep(20 * 1000);		/* en50494 says: >4ms and < 22 ms */
+		sendDiseqcCommand(&cmd, 80);	/* en50494 says: >2ms and < 60 ms */
 		fop(ioctl, FE_SET_VOLTAGE, unicable_lowvolt);
 	}
 	return ret;
@@ -1742,8 +1742,8 @@ uint32_t CFrontend::sendEN50607TuningCommand(const uint32_t frequency, const int
 				(horizontal << 1)			|	/* horizontal == 0x02 */
 				high_band;					/* high_band  == 0x01 */
 			fop(ioctl, FE_SET_VOLTAGE, SEC_VOLTAGE_18);
-			usleep(15 * 1000);					/* en50494 says: >4ms and < 22 ms */
-			sendDiseqcCommand(&cmd, 50);				/* en50494 says: >2ms and < 60 ms */
+			usleep(20 * 1000);					/* en50494 says: >4ms and < 22 ms */
+			sendDiseqcCommand(&cmd, 80);				/* en50494 says: >2ms and < 60 ms */
 			fop(ioctl, FE_SET_VOLTAGE, SEC_VOLTAGE_13);
 		}
 		return ret;