diff --git a/shortcuts.txt b/shortcuts.txt
index 10276a269..93c75585b 100644
--- a/shortcuts.txt
+++ b/shortcuts.txt
@@ -13,11 +13,11 @@
   <tr><td><b>F7       </b></td><td>Display Message Averaging window</td></tr>
   <tr><td><b>F11      </b></td><td>Move Rx frequency down 1 Hz</td></tr>
   <tr><td><b>Ctrl+F11 </b></td><td>Move identical Rx and Tx frequencies down 1 Hz</td></tr>
-  <tr><td><b>Shift+F11 </b></td><td>Move Tx frequency down 60 Hz</td></tr>
+  <tr><td><b>Shift+F11 </b></td><td>Move Tx frequency down 60 Hz (FT8) or 90 Hz (FT4)</td></tr>
   <tr><td><b>Ctrl+Shift+F11 </b></td><td>Move dial frequency down 2000 Hz</td></tr>
   <tr><td><b>F12      </b></td><td>Move Rx frequency up 1 Hz</td></tr>
   <tr><td><b>Ctrl+F12 </b></td><td>Move identical Rx and Tx frequencies up 1 Hz</td></tr>
-  <tr><td><b>Shift+F12 </b></td><td>Move Tx frequency up 60 Hz</td></tr>
+  <tr><td><b>Shift+F12 </b></td><td>Move Tx frequency up 60 Hz (FT8) or 90 Hz (FT4)</td></tr>
   <tr><td><b>Ctrl+Shift+F12 </b></td><td>Move dial frequency up 2000 Hz</td></tr>
   <tr><td><b>Alt+1-6  </b></td><td>Set now transmission to this number on Tab 1</td></tr>
   <tr><td><b>Ctl+1-6  </b></td><td>Set next transmission to this number on Tab 1</td></tr>