On Monday 21 January 2008, Bruce Schultz wrote:
  

On 20/01/08 20:47, Peter D. wrote:
    

On Sunday 20 January 2008, Jeff Bailes wrote:
      

Hi,
	Back in November, channel Seven changed their fec_hi from 2/3 to 3/4
causing scans to not pick it up
( http://www.dba.org.au/index.asp?sectionID=39&newsID=982&display=news
). The new entry in the au-Melbourne file for channel seven should be:
# Seven
T 177500000 7MHz 3/4 NONE QAM64 8k 1/16 NONE

I attached the complete updated file anyway.
	Jeff
        

They are a pain.

Anyway, according to the web site that you quoted, all tuners that
comply with Australian standards will cope without adjustment. 
Unfortunately not all tuners comply with Australian standards.  :-(

Presumably all au-tuning_files should have their channel 7 entry
updated. Can this be done at the data base end, or do all files have to
be re-submitted?  Also the GI in Brisbane is noted as changing as well.
      

I can confirm that the au-Brisbane scan file needs to change. It works
now for me with the same channel 7 line that Jeff included above. Scan
wasn't finding channel 7 without the change.
    

Did you just change fec_hi, or did you change the Guard Interval as 
well?  The quoted web page states that the GI is now 1/16.  (It is 
possible that your card is smart enough to sort out GI by itself, 
but not fec_hi.)