diff --git a/Conf.cpp b/Conf.cpp
index ca7bbfd..bf8ad05 100644
--- a/Conf.cpp
+++ b/Conf.cpp
@@ -101,7 +101,7 @@ m_dstarModule("C"),
 m_dstarSelfOnly(false),
 m_dstarBlackList(),
 m_dstarAckReply(true),
-m_dstarAckTime(1000U),
+m_dstarAckTime(750U),
 m_dstarErrorReply(true),
 m_dmrEnabled(false),
 m_dmrBeacons(false),
diff --git a/DStarControl.cpp b/DStarControl.cpp
index 61e6ee7..02abbde 100644
--- a/DStarControl.cpp
+++ b/DStarControl.cpp
@@ -59,8 +59,8 @@ m_networkWatchdog(1000U, 0U, 1500U),
 m_rfTimeoutTimer(1000U, timeout),
 m_netTimeoutTimer(1000U, timeout),
 m_packetTimer(1000U, 0U, 300U),
-m_ackTimer(ackTime, 0U, 750U),
-m_errTimer(1000U, 0U, 750U),
+m_ackTimer(1000U, 0U, ackTime),
+m_errTimer(1000U, 0U, ackTime),
 m_interval(),
 m_elapsed(),
 m_rfFrames(0U),
diff --git a/MMDVM.ini b/MMDVM.ini
index d2c8f08..cd85630 100644
--- a/MMDVM.ini
+++ b/MMDVM.ini
@@ -64,7 +64,7 @@ Enable=1
 Module=C
 SelfOnly=0
 AckReply=1
-AckTime=1000
+AckTime=750
 ErrorReply=1
 
 [DMR]