diff --git a/doc/user_guide/en/vhf-features.adoc b/doc/user_guide/en/vhf-features.adoc
index 54fcf2af2..f6d1c30ec 100644
--- a/doc/user_guide/en/vhf-features.adoc
+++ b/doc/user_guide/en/vhf-features.adoc
@@ -26,7 +26,7 @@ on bands above 1.2 GHz.
 
 To activate the VHF-and-up features:
 
-- On the *Settings | General* tab check *Enable VHF/UHF/Microwave
+- On the *Settings | General* tab check *Enable VHF and submode
 features* and *Single decode*.
 
 - For EME, check *Decode after EME delay* to allow for extra path
@@ -291,14 +291,16 @@ communication.
 
 For lunar echoes, _WSJT_ generates short fixed-frequency transmissions
 that alternate with reception intervals at the appropriate
-Doppler-shifted frequency.  With *Split Operation* set to *Rig* or
-*Fake It* on the *Settings | Radio* tab, check *Doppler tracking* and
-*Own Echo* on the Astronomical Data window.  Point your antenna at the
-Moon and click *Enable Tx* on the main window to start a sequence of
-echo measurements.  Each cycle takes 6 seconds.  If strong enough,
-echoes will be visible in the waterfall.  Their average spectrum will
-be displayed in the Echo Graph window, and numerical parameters of the
-measurements appear in the main window:
+Doppler-shifted frequency.  Be sure that *Enable VHF and submode
+features* has been checked on the *Settings | General* tab.  With
+*Split Operation* set to *Rig* or *Fake It* on the *Settings | Radio*
+tab, check *Doppler tracking* and *Own Echo* on the Astronomical Data
+window.  Point your antenna at the Moon and click *Enable Tx* on the
+main window to start a sequence of echo measurements.  Each cycle
+takes 6 seconds.  If strong enough, echoes will be visible in the
+waterfall.  Their average spectrum will be displayed in the Echo Graph
+window, and numerical parameters of the measurements appear in the
+main window:
 
 image::Echo_1296.png[align="center",alt="Echo 144 MHz"]