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-rw-r--r--src/nmt/dsp.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/nmt/dsp.c b/src/nmt/dsp.c
index 438f408..1033ed4 100644
--- a/src/nmt/dsp.c
+++ b/src/nmt/dsp.c
@@ -34,8 +34,8 @@
/* signalling */
#define TX_AUDIO_0dBm0 32767 /* works quite well */
-#define TX_PEAK_FSK 16384.0 /* peak amplitude of signalling FSK */
-#define TX_PEAK_SUPER 1638.0 /* peak amplitude of supervisory signal */
+#define TX_PEAK_FSK 10000.0 /* peak amplitude of signalling FSK */
+#define TX_PEAK_SUPER 1000.0 /* peak amplitude of supervisory signal */
#define BIT_RATE 1200 /* baud rate */
#define STEPS_PER_BIT 10 /* step every 1/12000 sec */
#define DIALTONE_HZ 425.0 /* dial tone frequency */