Thank you for response.
I think I see problem.
RID set manually to not zero (and channels names not messed up):
From 10722 to 10762:
GetByChannelID: S4.0W-4369-1-1 0 0 sid = 1 GetByChannelID: S4.0W-0-110762-1 0 0 sid = 1
Same case (10722->10762) with RID=0:
GetByChannelID: S4.0W-4369-1-1 0 0 sid = 1 channel->Sid() = 1 channel->Nid() = 4369 channel->Tid() = 1 channel->Transponder() = 110722 channel->GetChannelID() = S4.0W-4369-1-1
Transponder value is wrong. It must be 110762. Or isn't? And in first entry each channels printed out 2 times (with and without transponder frequency). With RID=0 second printouts are skipped. Sorry, I have only wery basic knowledge of C and can't understand most of complex sources.
Regards, SK