From 1621b40aff2fc4684aa17ea44c1534fb38d4a66d Mon Sep 17 00:00:00 2001
From: f4exb <f4exb06@gmail.com>
Date: Sat, 23 Apr 2016 06:58:54 +0200
Subject: [PATCH] DSD demod: allow no squelch time gate

---
 plugins/channel/demoddsd/dsddemod.cpp   | 15 +++++++++++----
 plugins/channel/demoddsd/dsddemodgui.ui |  2 +-
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/plugins/channel/demoddsd/dsddemod.cpp b/plugins/channel/demoddsd/dsddemod.cpp
index a546a1802..cda32efb5 100644
--- a/plugins/channel/demoddsd/dsddemod.cpp
+++ b/plugins/channel/demoddsd/dsddemod.cpp
@@ -119,18 +119,25 @@ void DSDDemod::feed(const SampleVector::const_iterator& begin, const SampleVecto
 
             if (getMagSq() > m_squelchLevel)
             {
-                if (m_squelchCount < m_squelchGate)
+                if (m_squelchGate > 0)
                 {
-                    m_squelchCount++;
+                    if (m_squelchCount < m_squelchGate) {
+                        m_squelchCount++;
+                    }
+
+                    m_squelchOpen = m_squelchCount == m_squelchGate;
+                }
+                else
+                {
+                    m_squelchOpen = true;
                 }
             }
             else
             {
                 m_squelchCount = 0;
+                m_squelchOpen = false;
             }
 
-            m_squelchOpen = m_squelchCount == m_squelchGate;
-
             if (m_squelchOpen)
             {
                 sample = demod;
diff --git a/plugins/channel/demoddsd/dsddemodgui.ui b/plugins/channel/demoddsd/dsddemodgui.ui
index cef8fadf2..59ea28e8d 100644
--- a/plugins/channel/demoddsd/dsddemodgui.ui
+++ b/plugins/channel/demoddsd/dsddemodgui.ui
@@ -522,7 +522,7 @@
          <string>Squelch gate (ms)</string>
         </property>
         <property name="minimum">
-         <number>1</number>
+         <number>0</number>
         </property>
         <property name="maximum">
          <number>50</number>