[mythtv-users] Antenna pointing apps?

Bret Clark bac52266 at gmail.com
Thu Nov 7 11:57:33 UTC 2013


On 11/06/2013 03:25 PM, Zig wrote:
> On 11/6/2013 12:16 PM, Stefan Jones wrote:
>> Good News: Portland's TV towers are on the west slope of the West 
>> Hills, visible from my neighborhood.
>>
>> Bad News: My Myth setup is kind of in the wrong part of the house. I 
>> am having trouble pointing my indoor antenna in a way that picks up 
>> all stations.
>>
>> I would really love a live-feedback app that would read the signal 
>> strength from my pcHDTV and/or Hauppague 2250 digital tuner cards. 
>> Select a station, position the antenna, see the signal strength.
>>
>> Does anyone know of such a utility? A graph would be ideal, but a 
>> numeric read-out would be fine.
>>
> ALT-F7 is in the key bindings table for SIGNALMON and it used to bring 
> up an OSD with a signal strength meter when used during live TV.  I 
> used it years ago, and I just tried it now but it doesn't seem to do 
> anything anymore.  I tried it with the pcHD3000 and the HDHR.  I can't 
> recall if these were the tuner cards I had when it did work.
>
> Does this still work for anyone else out there?
>
>
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If using Linux, these are the (painful) steps I take

1) Stop Myth Backend
2) scan for channels (this is for United States): "sudo w_scan -fa -cUS 
-x > channels.txt"
3) To see what channels were found: "sudo cat ./channels.txt"
4) Now need to create a channels.conf file for azap: "sudo scan 
./channels.txt >./channels.conf"
5) See what channels were found: "sudo cat ./channels.conf" and take 
note of channel name.
6) Now tune to channel with azap: " sudo  azap -c ./channels.conf 'WFXT DT'
7) Once a station is tuned you can use: "femon" to monitor too.

What stinks is azap shows the signal strength in hex, but at least this 
way I can ssh into my HTPC with my wi-fi laptop and monitor signal 
levels. I've actually hacked the dvb-util source code a bit to put 
signal levels into decimal as well as increase the speed of the display.

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