Comparing a char with the symbols '.-'
Your first problem is that there is no way for schar to contain two characters in the first place; Since schar is declared as a char, it can only contain one character. 

You need to make a String out of the serial input. Serial.read() only returns one character at a time, so you will need to make sure you iterate over all the input. Then you can compare the whole String with another, and see if both characters match at once. Just look at this code to see different ways of manipulating Strings: http://arduino.cc/en/Tutorial/StringComparisonOperators

Notice that string literals use double quotes, not single quotes like characters.

Also, be aware of the fact that string and String are different things. lowercase 's' is an array of characters, capitol 'S' is the class that has those useful string comparison member functions. The class is more resource intensive, but I think in your case the readability and convenience are worth it.