gnus-group-charset-alist

gnus-group-charset-alist is a variable defined in `gnus.el'.
Its value is shown below.

Documentation:
Alist of regexps (to match group names) and default charsets to be used when reading.

You can customize this variable.

Value:

(("\\(^\\|:\\)hk\\>\\|\\(^\\|:\\)tw\\>\\|\\" cn-big5)
 ("\\(^\\|:\\)cn\\>\\|\\" cn-gb-2312)
 ("\\(^\\|:\\)fj\\>\\|\\(^\\|:\\)japan\\>" iso-2022-jp-2)
 ("\\(^\\|:\\)tnn\\>\\|\\(^\\|:\\)pin\\>\\|\\(^\\|:\\)sci.lang.japan" iso-2022-7bit)
 ("\\(^\\|:\\)relcom\\>" koi8-r)
 ("\\(^\\|:\\)fido7\\>" koi8-r)
 ("\\(^\\|:\\)\\(cz\\|hun\\|pl\\|sk\\|hr\\)\\>" iso-8859-2)
 ("\\(^\\|:\\)israel\\>" iso-8859-1)
 ("\\(^\\|:\\)han\\>" euc-kr)
 ("\\(^\\|:\\)alt.chinese.text.big5\\>" chinese-big5)
 ("\\(^\\|:\\)soc.culture.vietnamese\\>" vietnamese-viqr)
 ("\\(^\\|:\\)\\(comp\\|rec\\|alt\\|sci\\|soc\\|news\\|gnu\\|bofh\\)\\>" iso-8859-1))