[mythtv-users] Stepper Directed HDTV Antenna

Dave Badia dbadia at gmail.com
Wed Feb 9 13:55:00 UTC 2011


>> Erik Hovland wrote:
>>>
>>> http://hackaday.com/2011/01/26/stepper-directed-hdtv-antenna/
>>>
>>> The last sentence in the paragraph throws down the gauntlet:
>>> What we would like to see is this antenna attached to a HTPC,
>>> and some kind of script to automatically direct the antenna
>>> for the best possible signal for the current channel.
>>
>> I couldn't quite make out what they are doing here. Are they a) moving the
>> antenna to use different transmitters for different channels, or b) moving
>> it about to get the best signal from a specific transmitter.
>
> This is for the former.  You have stations in multiple directions, and you
> want to record off all of them.  This cannot be done reliably without
> altering the code.  You would need the backend to support channel changing
> scripts for digital tuners, to get the rotor in place before trying to tune.
>  You probably could do something with the system event scripts, having
> mythbackend call a script on recording start, but you're likely to run into
> timing issues.

Isn't this possible given Myth's current ability to invoke a channel
change script before recording a channel?  My experience has been that
myth calls the script, waits however long it takes to complete, then
starts recording.

Dave


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