diff --git a/Modem.cpp b/Modem.cpp
index b24bf99..c6bab00 100644
--- a/Modem.cpp
+++ b/Modem.cpp
@@ -1044,10 +1044,18 @@ bool CModem::setConfig()
 bool CModem::setFrequency()
 {
 	unsigned char buffer[16U];
+	unsigned char len;
+	
+	if (m_hwType == HWT_DVMEGA)
+		len = 12U;
+	else {
+		buffer[12U]  = (unsigned char)(m_rfLevel * 2.55F + 0.5F);
+		len = 13U;
+	}
 
 	buffer[0U]  = MMDVM_FRAME_START;
 
-	buffer[1U]  = 13U;
+	buffer[1U]  = len;
 
 	buffer[2U]  = MMDVM_SET_FREQ;
 
@@ -1062,13 +1070,11 @@ bool CModem::setFrequency()
 	buffer[9U]  = (m_txFrequency >> 8) & 0xFFU;
 	buffer[10U] = (m_txFrequency >> 16) & 0xFFU;
 	buffer[11U] = (m_txFrequency >> 24) & 0xFFU;
-	
-	buffer[12U]  = (unsigned char)(m_rfLevel * 2.55F + 0.5F);
 
-	// CUtils::dump(1U, "Written", buffer, 13U);
+	// CUtils::dump(1U, "Written", buffer, len);
 
-	int ret = m_serial.write(buffer, 13U);
-	if (ret != 13)
+	int ret = m_serial.write(buffer, len);
+	if (ret != len)
 		return false;
 
 	unsigned int count = 0U;