What character(s) does a bitstring is encoded in each character set?

Bitstring:
Binary  Hexadecimal 
EncodingBitstringCharacter(s)
ISO-8859-13f81ca3f3f3f3f3f3f3f616b?Ê???????ak
SJIS-WIN3f81ca3f3f3f3f3f3f3f616b?¬???????ak
EUC-JP3f81ca3f3f3f3f3f3f3f616b?????????ak
UTF-83f81ca3f3f3f3f3f3f3f616b??????????ak
UHC3f81ca3f3f3f3f3f3f3f616b?곅???????ak