SU27 something confusing about training video

[ScEBlack1]

Under "pulse doppler radar" part 2 #57 it says this:

 

57.To launch the missile, we need to manually enter the anticipated target range by pressing Ralt + and Ralt .

 

then under "Radar warning reciever" next one down it says this:

 

17.You can increase and decrease the audio volume of the SPO-15 by pressing "RAlt +" and "RAlt -".

 

 

Both are 2 different things yet say to use the same controls or am I missing something here, just want to be sure, thanks.

[Sov13t]

Must be a mistake..

 

For the SPO Volume Ralt + . and Ralt + , are used, if I remember correctly.