[mythtv-users] Signal strength now reporting 50% instead of 100%

[Jay Harbeston]

> On May 17, 2022, at 7:12 AM, James Abernathy <jfabernathy at gmail.com> wrote:
> 
> 
> 
> On Sat, May 7, 2022 at 7:42 AM Stephen Worthington <stephen_agent at jsw.gen.nz <mailto:stephen_agent at jsw.gen.nz>> wrote:
> 
> To check for these messages, these commands are useful:
> 
> grep -a "overall_score=\"0" /var/log/mythtv/mythbackend.log
> 
> That will find any overall_score value that starts with a 0, so any
> where mythbackend calculated the value as less than 1.0.
> 
> And this will find any non-zero continuity_error_count messages:
> 
> grep -a "continuity_error_count=\"[1-9]" /var/log/mythtv/mythbackend.log
> 
> Stephen, I've added your-v record to a test mythtv-backend that uses only the HDHR Quatro.  I set up 2 recordings.
>  The 2 recordings from station 11701 are the ones in the log below that concern me.  The earlier one is the one that was flagged in Yellow test in the media listing.
> 
> I ran the 2 commands you gave me and the results are below for 2 recordings. only the 2 from Station 11701 are of concern since they were both Prime time HD programs on a good signal station.  Is there a way to tell if these problems were Tuner or Network traffic related??

As far as I know, the only way to check network problems is using the hdhomerun_config command to dump video to null and watch for errors in the output.  I am pasting excepts from silicon dust on how to see the status during recording:   Network errors will show up as ’n’ in the output below.

excerpted from  https://info.hdhomerun.com/info/hdhomerun_config  :

Note that to use the below to set a frequency/channel for the tuner to capture from below:

Tuning a physical channel
----------------------------

To set a channel use the set channel command:

format: hdhomerun_config <id> set /tuner<n>/channel <modulation>:<frequency>
format: hdhomerun_config <id> set /tuner<n>/channel <modulation>:<channel>
eg:     hdhomerun_config FFFFFFFF set /tuner0/channel auto:651000000
eg:     hdhomerun_config FFFFFFFF set /tuner0/channel auto:60

Supported modulation types can be queried with the get sys-features command:

hdhomerun_config <id> get /sys/features

To stop the tuner set the channel to none:

format: hdhomerun_config <id> set /tuner<n>/channel none
eg:     hdhomerun_config FFFFFFFF set /tuner0/channel none


Saving a stream
---------------------------------------

The hdhomerun_config command can be used to automate the process of saving to the local filesystem:

format: hdhomerun_config <id> save /tuner<n> <filename>
eg:     hdhomerun_config FFFFFFFF save /tuner0 capture.ts

While saving the stream, a single period “.” will be displayed every second. Additionally, as of the 20080609 release, the hdhomerun_config will detect reception and network errors, replacing the “.” with an alternative character to indicate the problem.

Example output:

............n...............................n..........ts..........
-- Video statistics --
23323 packets recieved, 2 network errors, 1 transport errors, 1 sequence errors

Advanced: A filename of “null” indicates no file should be created, allowing the use of the save command as a diagnostic tool.

Advanced: “-” may be used as a filename to indicate standard output, allowing the save command to be used as a pipe on supported platforms.

eg:     hdhomerun_config FFFFFFFF save /tuner0 - | vlc -


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