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-rw-r--r--gr-qtgui/lib/WaterfallDisplayPlot.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/gr-qtgui/lib/WaterfallDisplayPlot.cc b/gr-qtgui/lib/WaterfallDisplayPlot.cc
index 3dc182bca..1476be2bd 100644
--- a/gr-qtgui/lib/WaterfallDisplayPlot.cc
+++ b/gr-qtgui/lib/WaterfallDisplayPlot.cc
@@ -125,7 +125,7 @@ public:
virtual void SetZeroTime(const gruel::high_res_timer_type newTime)
{
- _zeroTime = newTime;
+ _zeroTime = newTime - gruel::high_res_timer_epoch();
}
virtual void SetSecondsPerLine(const double newTime)