diff --git a/src/main/java/ru/r2cloud/util/Util.java b/src/main/java/ru/r2cloud/util/Util.java
index 9db27ee0..8228ed4b 100644
--- a/src/main/java/ru/r2cloud/util/Util.java
+++ b/src/main/java/ru/r2cloud/util/Util.java
@@ -646,8 +646,8 @@ public static double convertAzimuthToDegress(double azimuth) {
 	private static long findClosest(long fromSampleRate, long baudRate) {
 		long carsonCutoff = 5000 + baudRate / 2;
 		long toSampleRate = baudRate * 3;
-		if (toSampleRate < carsonCutoff) {
-			toSampleRate = carsonCutoff;
+		if (toSampleRate < carsonCutoff * 2) {
+			toSampleRate = carsonCutoff * 2;
 		}
 		int[] primeNumbers = new int[] { 11, 7, 5, 3, 2 };
 		long result = fromSampleRate;
diff --git a/src/test/java/ru/r2cloud/util/UtilTest.java b/src/test/java/ru/r2cloud/util/UtilTest.java
index 50575166..098d6dcf 100644
--- a/src/test/java/ru/r2cloud/util/UtilTest.java
+++ b/src/test/java/ru/r2cloud/util/UtilTest.java
@@ -157,20 +157,20 @@ public void testGoodSampleRateSdrServer() {
 	public void testMinDividableSampleRate() {
 		assertEquals(40_000L, Util.getSmallestDividableSampleRate(5_000, 240_000L));
 		assertEquals(16_000L, Util.getSmallestDividableSampleRate(5_100, 240_000L));
-		assertEquals(7_000L, Util.getSmallestDividableSampleRate(1600, 21_000L));
+		assertEquals(21_000L, Util.getSmallestDividableSampleRate(1600, 21_000L));
 	}
 
 	@Test
 	public void testDemodulatorInput() {
 		assertEquals(46_875, Util.getDemodulatorInput(2_400, 46_875));
-		assertEquals(9_375, Util.getDemodulatorInput(2_600, 46_875));
-		assertEquals(10_000, Util.getDemodulatorInput(1200, 2000000));
+		assertEquals(15_625, Util.getDemodulatorInput(2_600, 46_875));
+		assertEquals(20_000, Util.getDemodulatorInput(1200, 2000000));
 	}
 
 	@Test
 	public void testSymbolSyncInput() {
 		assertEquals(9_375L, Util.getSymbolSyncInput(1250, 46_875));
-		assertEquals(7_000L, Util.getSmallestDividableSampleRate(1600, 21_000L));
+		assertEquals(21_000L, Util.getSmallestDividableSampleRate(1600, 21_000L));
 	}
 
 	@Test