[mythtv-users] finetuning channels?
Tako Schotanus
quintesse at palacio-cristal.com
Tue Nov 25 08:49:38 EST 2003
Forget about it, the Europe-West table is useless for The Netherlands.
We have an awfull situation here where every cable operator decides for
itself which frequencies they want to use and how to map frequencies to
channel numbers, depending on where you live channel number 66 (for
example) could have 2 different frequencies!!! This can happen even when
looking at the frequency tables of the same cable company but in two
different cities!
I've made a large list of frequencies of just 6 cities spread around the
country from only two cable companies and there are several duplicate
channel numbers in there. That's the reason why I never tried to include
the frequencies into MythTV because I have no idea how to handle those
duplicates.
-Tako
> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org
> [mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Pete's MythTV
> Sent: dinsdag 25 november 2003 12:57
> To: Discussion about mythtv
> Subject: RE: [mythtv-users] finetuning channels?
>
>
> Europe-West should be correct for you. Europe-East is the
> same tables, but
> adds some extra freqs for you. These are not standard in
> western europe,
> but are often used in cable systems.
>
> You can look at the frequency tables in the source code. If
> you don't have
> the source, browse the CVS and find the file "frequencies.c".
> This contains
> the tuning tables. (This link should work)
>
> http://cvs.mythtv.org/cgi-bin/viewcvs.cgi/*checkout*/mythtv/li
> bs/libmythtv/f
> requencies.c?content-type=text%2Fplain&rev=1.5
>
> When running the setup, for channels above 470MHz you use the channel
> number. For the others you have to find the equivalent or
> nearest frequency
> and use the channel id from the table. As far as I know you
> must enter it
> as it appears in the table, ie for Ned1 on 203.250MHz you need to use
> channel E9 with finetune=0.
>
> Most of your frequencies should not need a finetune offset
> unless your cable
> operator has changed the freqs for some reason.
>
> Hope this helps,
> Rgds,
> Pete
>
>
>
> p.s. Just in case, I have pasted the Europe tables below for you.
>
>
> /*
> --------------------------------------------------------------
> ------- */
> /* europe
> */
>
> /* CCIR frequencies */
>
> #define FREQ_CCIR_I_III \
> { "E2", 48250 }, \
> { "E3", 55250 }, \
> { "E4", 62250 }, \
> \
> { "S01", 69250 }, \
> { "S02", 76250 }, \
> { "S03", 83250 }, \
> \
> { "E5", 175250 }, \
> { "E6", 182250 }, \
> { "E7", 189250 }, \
> { "E8", 196250 }, \
> { "E9", 203250 }, \
> { "E10", 210250 }, \
> { "E11", 217250 }, \
> { "E12", 224250 }
>
> #define FREQ_CCIR_SL_SH \
> { "SE1", 105250 }, \
> { "SE2", 112250 }, \
> { "SE3", 119250 }, \
> { "SE4", 126250 }, \
> { "SE5", 133250 }, \
> { "SE6", 140250 }, \
> { "SE7", 147250 }, \
> { "SE8", 154250 }, \
> { "SE9", 161250 }, \
> { "SE10", 168250 }, \
> \
> { "SE11", 231250 }, \
> { "SE12", 238250 }, \
> { "SE13", 245250 }, \
> { "SE14", 252250 }, \
> { "SE15", 259250 }, \
> { "SE16", 266250 }, \
> { "SE17", 273250 }, \
> { "SE18", 280250 }, \
> { "SE19", 287250 }, \
> { "SE20", 294250 }
>
> #define FREQ_CCIR_H \
> { "S21", 303250 }, \
> { "S22", 311250 }, \
> { "S23", 319250 }, \
> { "S24", 327250 }, \
> { "S25", 335250 }, \
> { "S26", 343250 }, \
> { "S27", 351250 }, \
> { "S28", 359250 }, \
> { "S29", 367250 }, \
> { "S30", 375250 }, \
> { "S31", 383250 }, \
> { "S32", 391250 }, \
> { "S33", 399250 }, \
> { "S34", 407250 }, \
> { "S35", 415250 }, \
> { "S36", 423250 }, \
> { "S37", 431250 }, \
> { "S38", 439250 }, \
> { "S39", 447250 }, \
> { "S40", 455250 }, \
> { "S41", 463250 }
>
> /* OIRT frequencies */
>
> #define FREQ_OIRT_I_III \
> { "R1", 49750 }, \
> { "R2", 59250 }, \
> \
> { "R3", 77250 }, \
> { "R4", 85250 }, \
> { "R5", 93250 }, \
> \
> { "R6", 175250 }, \
> { "R7", 183250 }, \
> { "R8", 191250 }, \
> { "R9", 199250 }, \
> { "R10", 207250 }, \
> { "R11", 215250 }, \
> { "R12", 223250 }
>
> #define FREQ_OIRT_SL_SH \
> { "SR1", 111250 }, \
> { "SR2", 119250 }, \
> { "SR3", 127250 }, \
> { "SR4", 135250 }, \
> { "SR5", 143250 }, \
> { "SR6", 151250 }, \
> { "SR7", 159250 }, \
> { "SR8", 167250 }, \
> \
> { "SR11", 231250 }, \
> { "SR12", 239250 }, \
> { "SR13", 247250 }, \
> { "SR14", 255250 }, \
> { "SR15", 263250 }, \
> { "SR16", 271250 }, \
> { "SR17", 279250 }, \
> { "SR18", 287250 }, \
> { "SR19", 295250 }
>
> #define FREQ_UHF \
> { "21", 471250 }, \
> { "22", 479250 }, \
> { "23", 487250 }, \
> { "24", 495250 }, \
> { "25", 503250 }, \
> { "26", 511250 }, \
> { "27", 519250 }, \
> { "28", 527250 }, \
> { "29", 535250 }, \
> { "30", 543250 }, \
> { "31", 551250 }, \
> { "32", 559250 }, \
> { "33", 567250 }, \
> { "34", 575250 }, \
> { "35", 583250 }, \
> { "36", 591250 }, \
> { "37", 599250 }, \
> { "38", 607250 }, \
> { "39", 615250 }, \
> { "40", 623250 }, \
> { "41", 631250 }, \
> { "42", 639250 }, \
> { "43", 647250 }, \
> { "44", 655250 }, \
> { "45", 663250 }, \
> { "46", 671250 }, \
> { "47", 679250 }, \
> { "48", 687250 }, \
> { "49", 695250 }, \
> { "50", 703250 }, \
> { "51", 711250 }, \
> { "52", 719250 }, \
> { "53", 727250 }, \
> { "54", 735250 }, \
> { "55", 743250 }, \
> { "56", 751250 }, \
> { "57", 759250 }, \
> { "58", 767250 }, \
> { "59", 775250 }, \
> { "60", 783250 }, \
> { "61", 791250 }, \
> { "62", 799250 }, \
> { "63", 807250 }, \
> { "64", 815250 }, \
> { "65", 823250 }, \
> { "66", 831250 }, \
> { "67", 839250 }, \
> { "68", 847250 }, \
> { "69", 855250 }
>
> static struct CHANLIST europe_west[] = {
> FREQ_CCIR_I_III,
> FREQ_CCIR_SL_SH,
> FREQ_CCIR_H,
> FREQ_UHF
> };
>
> static struct CHANLIST europe_east[] = {
> FREQ_OIRT_I_III,
> FREQ_OIRT_SL_SH,
> FREQ_CCIR_I_III,
> FREQ_CCIR_SL_SH,
> FREQ_CCIR_H,
> FREQ_UHF
> };
>
>
>
> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org
> [mailto:mythtv-users-bounces at mythtv.org]On Behalf Of Jelle Kalf
> Sent: 25 November 2003 10:22
> To: 'Discussion about mythtv'
> Subject: RE: [mythtv-users] finetuning channels?
>
>
> Tuning table I selected was: PAL-EUROPE-WEST
>
> I think I presume I made a mistake there.... I can't see NED1, NED2,
> NED3....
> Can you help me with the correct tuning table ?
>
>
> Jelle.
>
> And yeah, I'm dutch. Trying to build a cheap Digital vcr ;)
> Thinking of building it into one of these small quiet itx cases:
> http://www.myelectronics.nl/nl/dept_139.html
>
>
>
> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org
> [mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Pete's MythTV
> Sent: dinsdag 25 november 2003 10:36
> To: Discussion about mythtv
> Subject: RE: [mythtv-users] finetuning channels?
>
> I presume from your earlier link, that you are based in Den Haag.
>
> What tuning table have you selected in Mythtv-setup ?
>
> Pete
>
> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org
> [mailto:mythtv-users-bounces at mythtv.org]On Behalf Of Jelle Kalf
> Sent: 24 November 2003 22:37
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] finetuning channels?
>
>
> ok I tested it.. and it seemed that on most I vary from 1 to
> 25 maximum on
> some channels.
>
> I think that's fairly normal isn't it ?
>
> On Mon, 24 Nov 2003 22:11:50 -0000
> "Pete's MythTV" <myth at scantech.no-ip.com> wrote:
>
> > The finetune values are 16 steps per 1MHz or 62500 Hz per step.
> >
> > Pete
>
>
>
>
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