diff --git a/libraries/AP_Airspeed/AP_Airspeed_Params.cpp b/libraries/AP_Airspeed/AP_Airspeed_Params.cpp
index 749fa9d6121641..97403e88b13586 100644
--- a/libraries/AP_Airspeed/AP_Airspeed_Params.cpp
+++ b/libraries/AP_Airspeed/AP_Airspeed_Params.cpp
@@ -75,7 +75,8 @@ const AP_Param::GroupInfo AP_Airspeed_Params::var_info[] = {
 
     // @Param: PIN
     // @DisplayName: Airspeed pin
-    // @Description: The pin number that the airspeed sensor is connected to for analog sensors. Set to 15 on the Pixhawk for the analog airspeed port. 
+    // @Description: The pin number that the airspeed sensor is connected to for analog sensors. Values for some autopilots are given as examples. Search wiki for "Analog pins".
+    // @Values: -1:Disabled, 2:Pixhawk/Pixracer/Navio2/Pixhawk2_PM1, 5:Navigator, 13:Pixhawk2_PM2/CubeOrange_PM2, 14:CubeOrange, 16:Durandal, 100:PX4-v1
     // @User: Advanced
     AP_GROUPINFO("PIN", 5, AP_Airspeed_Params, pin, 0),
 #endif // HAL_BUILD_AP_PERIPH
diff --git a/libraries/AP_BattMonitor/AP_BattMonitor_FuelLevel_Analog.cpp b/libraries/AP_BattMonitor/AP_BattMonitor_FuelLevel_Analog.cpp
index f1dfead2bba7bf..ecd2c79b89b259 100644
--- a/libraries/AP_BattMonitor/AP_BattMonitor_FuelLevel_Analog.cpp
+++ b/libraries/AP_BattMonitor/AP_BattMonitor_FuelLevel_Analog.cpp
@@ -54,8 +54,8 @@ const AP_Param::GroupInfo AP_BattMonitor_FuelLevel_Analog::var_info[] = {
 
     // @Param: FL_PIN
     // @DisplayName: Fuel level analog pin number
-    // @Description: Analog input pin that fuel level sensor is connected to. Airspeed ports can be used for Analog input. When using analog pin 103, the maximum value of the input in 3.3V.
-    // @Values: -1:Not Used,11:Pixracer,13:Pixhawk ADC4,14:Pixhawk ADC3,15:Pixhawk ADC6/Pixhawk2 ADC,103:Pixhawk SBUS
+    // @Description: Analog input pin that fuel level sensor is connected to.Analog Airspeed or RSSI ports can be used for Analog input( some autopilots provide others also). Values for some autopilots are given as examples. Search wiki for "Analog pins".
+     // @Values: -1:Disabled, 2:Pixhawk/Pixracer/Navio2/Pixhawk2_PM1, 5:Navigator, 13:Pixhawk2_PM2/CubeOrange_PM2, 14:CubeOrange, 16:Durandal, 100:PX4-v1
     AP_GROUPINFO("FL_PIN", 43, AP_BattMonitor_FuelLevel_Analog, _pin, -1),
 
  // index 44 unused and available
diff --git a/libraries/AP_RSSI/AP_RSSI.cpp b/libraries/AP_RSSI/AP_RSSI.cpp
index 033e6122b76795..7db287006324e1 100644
--- a/libraries/AP_RSSI/AP_RSSI.cpp
+++ b/libraries/AP_RSSI/AP_RSSI.cpp
@@ -48,7 +48,7 @@ const AP_Param::GroupInfo AP_RSSI::var_info[] = {
 
     // @Param: ANA_PIN
     // @DisplayName: Receiver RSSI sensing pin
-    // @Description: Pin used to read the RSSI voltage or PWM value
+    // @Description: Pin used to read the RSSI voltage or PWM value. Analog Airspeed ports can be used for Analog inputs (some autopilots provide others also), Non-IOMCU Servo/MotorOutputs can be used for PWM input when configured as "GPIOs". Values for some autopilots are given as examples. Search wiki for "Analog pins" for analog pin or "GPIOs", if PWM input type, to determine pin number.
     // @Values: 8:V5 Nano,11:Pixracer,13:Pixhawk ADC4,14:Pixhawk ADC3,15:Pixhawk ADC6/Pixhawk2 ADC,50:AUX1,51:AUX2,52:AUX3,53:AUX4,54:AUX5,55:AUX6,103:Pixhawk SBUS
     // @User: Standard
     AP_GROUPINFO("ANA_PIN", 1, AP_RSSI, rssi_analog_pin,  BOARD_RSSI_ANA_PIN),
diff --git a/libraries/AP_RangeFinder/AP_RangeFinder_Params.cpp b/libraries/AP_RangeFinder/AP_RangeFinder_Params.cpp
index 83816dd8653764..4ac78ad799d80f 100644
--- a/libraries/AP_RangeFinder/AP_RangeFinder_Params.cpp
+++ b/libraries/AP_RangeFinder/AP_RangeFinder_Params.cpp
@@ -16,7 +16,7 @@ const AP_Param::GroupInfo AP_RangeFinder_Params::var_info[] = {
 
     // @Param: PIN
     // @DisplayName: Rangefinder pin
-    // @Description: Analog or PWM input pin that rangefinder is connected to. Airspeed ports can be used for Analog input, AUXOUT can be used for PWM input. When using analog pin 103, the maximum value of the input in 3.3V. For PWM input, the pin must be configured as a digital GPIO, see the Wiki's "GPIOs" section for details.
+    // @Description: Analog or PWM input pin that rangefinder is connected to. Analog RSSI or Airspeed ports can be used for Analog inputs (some autopilots provide others also), Non-IOMCU Servo/MotorOutputs can be used for PWM input when configured as "GPIOs". Values for some autopilots are given as examples. Search wiki for "Analog pins" for analog pin or "GPIOs", if PWM input type, to determine pin number.
     // @Values: -1:Not Used,11:Pixracer,13:Pixhawk ADC4,14:Pixhawk ADC3,15:Pixhawk ADC6/Pixhawk2 ADC,50:AUX1,51:AUX2,52:AUX3,53:AUX4,54:AUX5,55:AUX6,103:Pixhawk SBUS
     // @User: Standard
     AP_GROUPINFO("PIN",     2, AP_RangeFinder_Params, pin, -1),