[mythtv] [PATCH] Experimental full DVB-T scan

Andrew Dennison andrew-lists at optusnet.com.au
Tue Apr 12 12:44:03 UTC 2005


Nigel Pearson wrote:
> 
>     Hi Andrew. Thanks for this. I am still working on and testing my
> own patch from the weekend, and should have an exhaustive email today.
> 
>     Two questions though:
> 
>> {177500000,228500000,7000000,INVERSION_OFF,BANDWIDTH_7_MHZ,FEC_AUTO,FEC 
>> _AUTO,QAM_64,TRANSMISSION_MODE_AUTO,GUARD_INTERVAL_AUTO,HIERARCHY_NONE, 
>> 125000,0},
> 
> 
>     That end frequency is not an even step of 7MHz above the start.
> By my understanding, it should be 226500000.

I worked out the channel ranges using a channel listing by frequency 
from the aba website:

http://www.aba.gov.au/broadcasters/pdfrtf/tv_7.pdf

Your correct - looks like I wrote down the wrong number:(

> 
>> {529500000,809500000,7000000,INVERSION_OFF,BANDWIDTH_7_MHZ,FEC_AUTO,FEC 
>> _AUTO,QAM_64,TRANSMISSION_MODE_AUTO,GUARD_INTERVAL_AUTO,HIERARCHY_NONE, 
>> 125000,0},
> 
> 
>     The references I am using say that it should be UHF 26 thru 69,
> which would be through to 816500000, but that 68 and 69 "may be re-
> allocated when DTV is fully established, and will be avoided"
> (whatever that means)

I just went to the last channel listed in the above doc. Couldn't find a 
proper document that outlined the spectrum.

Good to see peer review at work:)


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