Opened 9 years ago

Closed 9 years ago

Last modified 8 years ago

#7688 closed defect (fixed)

UK DVB-T changes call for change to full scanning code

Reported by: Justin Hornsby Owned by: Stuart Auchterlonie
Priority: minor Milestone: 0.23
Component: MythTV - Channel Scanner Version: head
Severity: low Keywords: DVB-T UK freeview transmission 2k 8k switchover
Cc: Ticket locked: no

Description

The upcoming analogue switch-off in the UK will result in a change to the transmission mode used for DVB-T broadcasts. Before switchover, 2k mode is used. Post switchover, 8k in 64QAM will reportedly be used on all SDTV DVB-T multiplexes where previously a mixture of 2k 16QAM & 2k 64QAM was used.

The attached patch sets default parameters for a full UK DVB-T scan to AUTO. It would probably be beneficial to backport this change to -fixes too.

Attachments (1)

ukfullscan.diff (738 bytes) - added by Justin Hornsby 9 years ago.

Download all attachments as: .zip

Change History (6)

Changed 9 years ago by Justin Hornsby

Attachment: ukfullscan.diff added

comment:1 Changed 9 years ago by Justin Hornsby

FYI the section of the patch where heirarchy & guard interval are changed to AUTO can be disregarded

comment:2 Changed 9 years ago by danielk

Priority: criticalminor
Severity: mediumlow

comment:3 Changed 9 years ago by Stuart Auchterlonie

Resolution: fixed
Status: newclosed

(In [23075]) Closes #7688. Updates to the UK fullscan parameters. With the move to 8k transmission mode, explicitly setting a transmission mode of 2k is a bad thing (tm)

comment:4 Changed 9 years ago by Stuart Auchterlonie

Owner: changed from danielk to Stuart Auchterlonie

comment:5 Changed 8 years ago by Stuart Auchterlonie

(In [23345]) Refs #7688. Revert GuardInterval? and Hierarchy changes as they aren't required.

Note: See TracTickets for help on using tickets.