Set country and language.

 | Data byte | Description                                                        | 
 | :---------: | -----------                                                        | 
 | 0         | Country/Language code.                                             | 
 | 1         | Zone for which event applies to (0-255). 255 is all zones.         | 
 | 2         | Sub-zone for which event applies to (0-255). 255 is all sub-zones. | 
 | 3-7       | Country/Language code specific                                     | 

 | Language code | Description          | Example                                           | 
 | :---------: | -----------          | -------                                           | 
 | 0             | Custom coded system  | Byte 3 = 0 English, Byte 3 = 1 German or similar. | 
 | 1             | ISO 639-1            | nl for Dutch, en for English.                     | 
 | 2             | ISO 639-2/T          | nid for Dutch, eng for English.                   | 
 | 3             | ISO 639-2/B          | dut for Dutch, eng for English.                   | 
 | 4             | ISO 639-3            | nid for Dutch, eng for English.                   | 
 | 5             | IETF (RFC-5646/4647) | en-US for American English. en-GB British.        | 


ISO codes can be found [here](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes)
