Problem tuning Channel 9
Posted: Sun Jan 29, 2023 2:34 am
I have two MythTV servers in slightly different locations on the far south coast of NSW. One is at Merimbula, the other near Bega.
In both cases the MythTV server is running on Debian GNU/Linux 10 (buster), both patched every few weeks.
The MythTV build dates back to 2019, and was cloned from:
I realise that I need to update, but it's been mostly reliable for a long time, and I have a specific new problem that has recently materialised in Merimbula, but not in Bega.
The local TV broadcasters are ABC, SBS, Seven, Nine, and Ten.
My DVB-T tuners are similar on both servers, with a pair of USB tuners on each host, and network connected HD Homeruns. They have all performed flawlessly for many years.
My new problem is that I can't use MythTV to tune anything from Channel 9 at Merimbula, no matter which tuner I select. I have no such problem at Bega (different signal source).
However, when I use the tuner in the TV set, I have no problems. Channel 9 is fine!
My signal is excellent typically 90 to 96%.
I have re-scanned the spectrum from the backend setup on the server several times. There is no problem identifying Nine with the scanning process.
When I try to watch anything from Nine, the text at the bottom of the screen will say:
and that's where it stops. The problem is identified by the lower case "s" in "TLMs". When tuning works, you get "TLMS".
I'm thinking that there is is issue with the broadcast signal for Nine at Merimbula.
My next step is to upgrade MythTV, but I'd like to see if I can understand the nature of the problem before making any more changes.
Does anyone have any insight into the problem?
In both cases the MythTV server is running on Debian GNU/Linux 10 (buster), both patched every few weeks.
The MythTV build dates back to 2019, and was cloned from:
Code: Select all
git clone https://github.com/MythTV/packaging.git -b fixes/30
The local TV broadcasters are ABC, SBS, Seven, Nine, and Ten.
My DVB-T tuners are similar on both servers, with a pair of USB tuners on each host, and network connected HD Homeruns. They have all performed flawlessly for many years.
My new problem is that I can't use MythTV to tune anything from Channel 9 at Merimbula, no matter which tuner I select. I have no such problem at Bega (different signal source).
However, when I use the tuner in the TV set, I have no problems. Channel 9 is fine!
My signal is excellent typically 90 to 96%.
I have re-scanned the spectrum from the backend setup on the server several times. There is no problem identifying Nine with the scanning process.
When I try to watch anything from Nine, the text at the bottom of the screen will say:
Code: Select all
Signal 91% | BE 0 | (TLMs) Partial Lock
I'm thinking that there is is issue with the broadcast signal for Nine at Merimbula.
My next step is to upgrade MythTV, but I'd like to see if I can understand the nature of the problem before making any more changes.
Does anyone have any insight into the problem?