diff --git a/ChangeLog b/ChangeLog
index fe43ae96..39c0c330 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -21431,3 +21431,6 @@
        * Changed the way in which the VU Meter UDP port is chosen. One
        can now specify the base port number and the maximum number of UDP
        ports to consider when caed(8) sets up the VU meter port.
+2021-04-14 Fred Gleason <fredg@paravelsystems.com>
+	* Documented the 'MeterPortBaseNumber=' and 'MeterPointRange='
+	directives in the rd.conf(5) man page.
diff --git a/docs/manpages/rd.conf.xml b/docs/manpages/rd.conf.xml
index e5fa39f7..fc31b557 100644
--- a/docs/manpages/rd.conf.xml
+++ b/docs/manpages/rd.conf.xml
@@ -789,6 +789,36 @@
 	   </listitem>
 	 </varlistentry>
        </variablelist>
+
+
+       <variablelist>
+	 <varlistentry>
+	   <term>
+	     <userinput>MeterPortBaseNumber = </userinput><replaceable>udp-port</replaceable>
+	   </term>
+	   <term>
+	     <userinput>MeterPortRange = </userinput><replaceable>size</replaceable>
+	   </term>
+	   <listitem>
+	     <para>
+	       These parameters define the range of UDP ports to reserve for
+	       processing audio meter updates. The
+	       <userinput>MeterPortBaseNumber</userinput> parameter specifies
+	       the first port in the range (valid values between
+	       <userinput>1</userinput> and <userinput>32767</userinput>) while
+	       <userinput>MeterPortRange</userinput> specifies how many ports
+	       to reserve (valid values between
+	       <userinput>1</userinput> and <userinput>999</userinput>).
+	       The default values
+	       are <userinput>30000</userinput> and <userinput>100</userinput>
+	       respectively.
+	     </para>
+	     <para>
+	       It should seldom be necessary to change these.
+	     </para>
+	   </listitem>
+	 </varlistentry>
+       </variablelist>
      </listitem>
    </varlistentry>
  </variablelist>