Talk:Pan-American television frequencies

ATSC centered 3MHz above Lower edge[edit]

Wouldn't it be 300KHz (or 310KHz specifically)? 3MHz would bump you too high. Edited.

The pilot frequencies are not correct, they are xxx,309,441 Hz., (not xxx.31 Mhz). The error is intolerable. — Preceding unsigned comment added by 141.209.112.159 (talk) 21:05, 17 July 2018 (UTC)[reply]

Background colors[edit]

What do the background colors mean in the channel/frequency matrices?

e.g. 37 (608MHz-614MHz) has a cyan background, which doesn't seem to match any bluish color (is it the same as #44CCFF hex code?) in the other grids.

Who made those grids, what do those colors mean, and why is there no legend telling what they mean? Darr247 (talk) 13:38, 18 February 2014 (UTC)[reply]

I've wondered the same thing myself, so I'm glad you asked. I just removed the color and we'll see how it goes. – voidxor ^{(talk | contrib)} 06:10, 19 February 2014 (UTC)[reply]

The colors show channels that have been reallocated and are no longer used for broadcast television. The notes below the table explain the re-allocations. Bubbatex (talk) 13:24, 22 December 2014 (UTC)[reply]

Channel 37 (article) explains why channel 37 is not used in Canada, the United States and Mexico, reserving it for Radio Astronomy weak-signal reception. That might be why a different color was used in a frequency chart mentioned above. ^[1]Lytzf (talk) 03:24, 29 July 2018 (UTC)[reply]

It seems the colors were added back at some point, but they seem inconsistent. Channels 69–83 were reallocated at a different point in time from 52–68, so why are those not in a different color like 38–51 are? Travis Evans (talk) 01:07, 29 March 2020 (UTC)[reply]

References

^ Channel 37

Poorly organized[edit]

Under the Broadcast section, the main headings are:

Analog channels
Changes and variations
Current band plans

The US no longer has analog TV. What is the meaning of these sections? Can we get a subject matter expert to revise this? Should here be a "digital channels" section? Does the frequency table apply to both? One would think that the change from analog to digital in 2009 would be a significant "change" but it is not mentioned in the section. To an average visitor, this article appears either obsolete or to be missing relevant information. 3dimen (talk) 16:25, 19 February 2014 (UTC)[reply]

I took a stab at reorganizing the article; I hope this helps. Thanks for reporting the problem! – voidxor ^{(talk | contrib)} 02:10, 23 February 2014 (UTC)[reply]

Broken link[edit]

The link to the ARRL website returns 404; I think the desired page is now at https://www.arrl.org/files/file/Technology/TV_Channels/TV_Broadcast_Frequencies.pdf

Wayne (talk) 21:31, 15 June 2018 (UTC)[reply]

All the article needs a new title as history of television channels. Nothing is current. Externet18Jul2020 — Preceding unsigned comment added by 2605:A000:7FC0:25:14F5:5DF0:A2EA:3BF2 (talk) 13:33, 18 July 2020 (UTC)[reply]

[1] Channel 37

[1]