diff --git a/Common/IcomController.cpp b/Common/IcomController.cpp
index 0ad31e7..89bf52a 100644
--- a/Common/IcomController.cpp
+++ b/Common/IcomController.cpp
@@ -35,7 +35,7 @@ CIcomController::CIcomController(const wxString& port) :
 CModem(),
 m_port(port),
 m_serial(port, SERIAL_38400, true),
-m_txData(1000U),
+m_txData(2000U),
 m_txCounter(0U),
 m_pktCounter(0U),
 m_txSpace(true)