diff mbox

us-ATSC-center-frequencies-8VSB: Added channel numbers in comments to make the file easier to use by comparing against local channel lists.

Message ID 3DC79E44-2C1C-40C8-B9AA-D77614D50C3E@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Maury Markowitz Dec. 10, 2015, 2:47 a.m. UTC 
This is my first attempt at a patch, so please be gentle.

Signed-off-by: Maury Markowitz <maury.markowitz@gmail.com>

---
 atsc/us-ATSC-center-frequencies-8VSB | 78 ++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)

Comments

Mauro Carvalho Chehab Dec. 10, 2015, 10:05 a.m. UTC | #1 
Em Wed, 9 Dec 2015 21:47:10 -0500
Maury Markowitz <maury.markowitz@gmail.com> escreveu:

> This is my first attempt at a patch, so please be gentle.
> 
> Signed-off-by: Maury Markowitz <maury.markowitz@gmail.com>
> 
> ---
>  atsc/us-ATSC-center-frequencies-8VSB | 78 ++++++++++++++++++++++++++++++++++++
>  1 file changed, 78 insertions(+)
> 
> diff --git a/atsc/us-ATSC-center-frequencies-8VSB b/atsc/us-ATSC-center-frequencies-8VSB
> index e744878..abb05fb 100644
> --- a/atsc/us-ATSC-center-frequencies-8VSB
> +++ b/atsc/us-ATSC-center-frequencies-8VSB
> @@ -1,410 +1,488 @@
>  # US ATSC center frequencies, use if in doubt
>  
> +# VHF low-band, channels 2 to 6, no longer used for television broadcasting
> +
> +#channel 2
>  [CHANNEL]

You could, instead, put the channel number inside the [], like:

[CHANNEL 2]

I actually think that this makes the file better readable. Take a look
at this file, for example:
	isdb-t/br-Brazil

(that's basically the basic channeling used on NTSC, except that ISDB-T
 main carrier is not at the center of the channel, so the frequencies
 there have a shift when compared with the analog TV frequencies).

There, I opted to put a notes about the unused frequencies at the
header. This very same file is also used on other Countries in
South and Central America.

>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 57028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 3
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 63028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 4
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 69028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 5
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 79028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 6
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 85028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +# VHF high-band, channels 7 to 13, not common but a few digital stations on it
> +
> +#channel 7
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 177028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 8
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 183028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 9
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 189028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 10
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 195028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 11
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 201028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 12
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 207028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 13
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 213028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +# UHF, channels 14 to 51, most existing stations, almost all digital
> +
> +#channel 14
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 473028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 15
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 479028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 16
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 485028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 17
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 491028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 18
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 497028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 19
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 503028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 20
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 509028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 21
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 515028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 22
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 521028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 23
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 527028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 24
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 533028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 25
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 539028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 26
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 545028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 27
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 551028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 28
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 557028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 29
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 563028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 30
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 569028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 31
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 575028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 32
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 581028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 33
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 587028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 34
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 593028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 35
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 599028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 36
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 605028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 37, not used in USA and Canada due to interference with radio astronomy bands
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 611028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 38
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 617028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 39
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 623028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 40
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 629028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 41
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 635028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 42
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 641028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 43
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 647028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 44
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 653028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 45
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 659028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 46
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 665028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 47
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 671028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 48
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 677028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 49
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 683028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 50
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 689028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 51, no longer used to clear interference with cell bands
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 695028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +# the following frequencies were formerly part of the UHF band before the digital transition
> +# but were sold off to cell carriers and are no longer used for television
> +
> +#channel 52
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 701028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 53
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 707028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 54
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 713028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 55
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 719028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 56
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 725028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 57
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 731028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 58
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 737028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 59
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 743028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 60
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 749028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 61
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 755028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 62
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 761028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 63
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 767028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 64
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 773028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 65
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 779028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 66
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 785028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 67
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 791028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 68
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 797028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +#channel 69
>  [CHANNEL]
>  	DELIVERY_SYSTEM = ATSC
>  	FREQUENCY = 803028615
>  	MODULATION = VSB/8
>  	INVERSION = AUTO
>  
> +# UHF formerly had changes 70 through 83 as well
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diff mbox

Patch

diff --git a/atsc/us-ATSC-center-frequencies-8VSB b/atsc/us-ATSC-center-frequencies-8VSB
index e744878..abb05fb 100644
--- a/atsc/us-ATSC-center-frequencies-8VSB
+++ b/atsc/us-ATSC-center-frequencies-8VSB
@@ -1,410 +1,488 @@ 
 # US ATSC center frequencies, use if in doubt
 
+# VHF low-band, channels 2 to 6, no longer used for television broadcasting
+
+#channel 2
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 57028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 3
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 63028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 4
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 69028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 5
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 79028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 6
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 85028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+# VHF high-band, channels 7 to 13, not common but a few digital stations on it
+
+#channel 7
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 177028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 8
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 183028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 9
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 189028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 10
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 195028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 11
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 201028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 12
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 207028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 13
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 213028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+# UHF, channels 14 to 51, most existing stations, almost all digital
+
+#channel 14
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 473028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 15
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 479028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 16
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 485028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 17
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 491028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 18
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 497028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 19
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 503028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 20
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 509028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 21
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 515028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 22
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 521028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 23
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 527028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 24
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 533028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 25
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 539028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 26
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 545028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 27
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 551028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 28
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 557028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 29
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 563028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 30
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 569028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 31
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 575028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 32
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 581028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 33
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 587028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 34
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 593028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 35
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 599028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 36
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 605028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 37, not used in USA and Canada due to interference with radio astronomy bands
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 611028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 38
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 617028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 39
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 623028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 40
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 629028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 41
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 635028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 42
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 641028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 43
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 647028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 44
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 653028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 45
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 659028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 46
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 665028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 47
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 671028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 48
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 677028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 49
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 683028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 50
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 689028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 51, no longer used to clear interference with cell bands
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 695028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+# the following frequencies were formerly part of the UHF band before the digital transition
+# but were sold off to cell carriers and are no longer used for television
+
+#channel 52
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 701028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 53
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 707028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 54
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 713028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 55
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 719028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 56
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 725028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 57
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 731028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 58
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 737028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 59
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 743028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 60
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 749028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 61
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 755028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 62
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 761028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 63
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 767028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 64
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 773028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 65
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 779028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 66
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 785028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 67
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 791028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 68
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 797028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+#channel 69
 [CHANNEL]
 	DELIVERY_SYSTEM = ATSC
 	FREQUENCY = 803028615
 	MODULATION = VSB/8
 	INVERSION = AUTO
 
+# UHF formerly had changes 70 through 83 as well