Question: is it tnx or thx?
Answer: TNX, TKS, THX or THNX? A common modern practice is to use THX or THNX abbreviations as an expression of thanks. ... So, please note that TNX or TKS are ham radio abbreviations, having their distinctive meaning and sound on the CW mode. THX or THNX are internet abbreviations, hardly acceptable among hams.