diff --git a/doc/user_guide/en/protocols.adoc b/doc/user_guide/en/protocols.adoc
index 9c633b951..e2477d50b 100644
--- a/doc/user_guide/en/protocols.adoc
+++ b/doc/user_guide/en/protocols.adoc
@@ -274,6 +274,6 @@ and your QSO partner ± 200 Hz.
 |JT9F     |K=32, r=1/2|(206,72)| 8| 9-FSK| 50.0 |  450  | 0.19| 1.700 
 |JT9G     |K=32, r=1/2|(206,72)| 8| 9-FSK|100.0 |  900  | 0.19| 0.850 
 |JT9H     |K=32, r=1/2|(206,72)| 8| 9-FSK|200.0 | 1800  | 0.19| 0.425 
-|MSK144   |LDPC       |(128,72)| 2| OQPSK| 2000 | 2000  | 0.11| 0.072 
-|MSK144 Sh|LDPC       |(32,16) | 2| OQPSK| 2000 | 2000  | 0.20| 0.020 
+|MSK144   |LDPC       |(128,72)| 2| OQPSK| 2000 | 2400  | 0.11| 0.072 
+|MSK144 Sh|LDPC       |(32,16) | 2| OQPSK| 2000 | 2400  | 0.20| 0.020 
 |=====================================================================