CATV
- TV - FM Frequencies
In the US, a TV channel is a 6 MHz wide chunk of bandspace. The bottom edge of the over-the-air channel 2 is 54 MHz and the upper edge is 60 MHz. Within this 6 MHz space is a video carrier, a color carrier, and an audio carrier.
The frequency of the video carrier is 1.25 MHz above the lower edge, so for TV Channel 2 the video is at 55.25 MHz.
The color carrier is approx. 3.58 MHz above the video carrier (N.B. not the lower edge), so for TV Channel 2 it is 58.83 MHz.
The audio carrier is 4.5 MHz above the video carrier, so for TV Channel 2 it is 59.75 MHz.
The reason I mention all of this is that you have to be careful to note how a channel frequency is being specified. The two common methods are
In the following lists I always use the latter method, specifying the video carrier.
CATV has channels with frequencies below channel 2. They are designated T-7 (tee seven or tee dash seven) through T-14 and are usually used for transmission in the reverse direction. If your local city council meeting is broadcast live, the camera is being modulated onto one of those T channels and sent back up to the cable system headend whereupon it is broadcast outbound on the community cable access channel.
In the list I have some channels with the designation A-1 (A minus one, not A dash one) through A-8. They are so designated because their frequencies immediately precede that of the CATV channel known as A.
In the CATV listing, the column labeled Common gives the common industry parlance for that channel. The next column labeled EIA gives the new EIA standardized designation. Column STD shows the standard CATV frequency which usually matches IRC. IRC stands for Incrementally Related Carrier and means that the lower edge of the channel space is on the nice, round-numbered boundary such as 54 MHz, 60 MHz, 66 MHz etc. HRC stands for Harmonically Related Carrier, and as you can see means that it is the video carrier that is assigned the nice round number (6 MHz harmonics, hence). Some cable systems use IRC, some use HRC.
The number of channels on a given cable system varies. Very old systems might only go up to 300 or 350 MHz. Most common in the past ten years or so is 450 MHz. Newer systems may be 550 MHz. The latest and greatest with any meaningful installed base is 800 or 860 MHz (somebody correct me), but it is rare and pricey. The list herein only goes up to 550 MHz.
FM radio frequencies are thrown in for good measure.
This stuff was gathered from several sources. My thanks to all of them. Error reports are welcome.
AIR 2 55.25 VHF-LO AIR 3 61.25 VHF-LO AIR 4 67.25 VHF-LO AIR 5 77.25 VHF-LO AIR 6 83.25 VHF-LO ---------- AIR 7 175.25 VHF-HI AIR 8 181.25 VHF-HI AIR 9 187.25 VHF-HI AIR 10 193.25 VHF-HI AIR 11 199.25 VHF-HI AIR 12 205.25 VHF-HI AIR 13 211.25 VHF-HI ---------- AIR 14 471.25 UHF AIR 15 477.25 UHF AIR 16 483.25 UHF AIR 17 489.25 UHF AIR 18 495.25 UHF AIR 19 501.25 UHF AIR 20 507.25 UHF AIR 21 513.25 UHF AIR 22 519.25 UHF AIR 23 525.25 UHF AIR 24 531.25 UHF AIR 25 537.25 UHF AIR 26 543.25 UHF AIR 27 549.25 UHF AIR 28 555.25 UHF AIR 29 561.25 UHF AIR 30 567.25 UHF AIR 31 573.25 UHF AIR 32 579.25 UHF AIR 33 585.25 UHF AIR 34 591.25 UHF AIR 35 597.25 UHF AIR 36 603.25 UHF AIR 37 609.25 UHF AIR 38 615.25 UHF AIR 39 621.25 UHF AIR 40 627.25 UHF AIR 41 633.25 UHF AIR 42 639.25 UHF AIR 43 645.25 UHF AIR 44 651.25 UHF AIR 45 657.25 UHF AIR 46 663.25 UHF AIR 47 669.25 UHF AIR 48 675.25 UHF AIR 49 681.25 UHF AIR 50 687.25 UHF AIR 51 693.25 UHF AIR 52 699.25 UHF AIR 53 705.25 UHF AIR 54 711.25 UHF AIR 55 717.25 UHF AIR 56 723.25 UHF AIR 57 729.25 UHF AIR 58 735.25 UHF AIR 59 741.25 UHF AIR 60 747.25 UHF AIR 61 753.25 UHF AIR 62 759.25 UHF AIR 63 765.25 UHF AIR 64 771.25 UHF AIR 65 777.25 UHF AIR 66 783.25 UHF AIR 67 789.25 UHF AIR 68 795.25 UHF AIR 69 801.25 UHF ---------- AIR 70 807.25 UHF (no longer assigned) AIR 71 813.25 UHF (no longer assigned) AIR 72 819.25 UHF (no longer assigned) AIR 73 825.25 UHF (no longer assigned) AIR 74 831.25 UHF (no longer assigned) AIR 75 837.25 UHF (no longer assigned) AIR 76 843.25 UHF (no longer assigned) AIR 77 849.25 UHF (no longer assigned) AIR 78 855.25 UHF (no longer assigned) AIR 79 861.25 UHF (no longer assigned) AIR 80 867.25 UHF (no longer assigned) AIR 81 873.25 UHF (no longer assigned) AIR 82 879.25 UHF (no longer assigned) AIR 83 885.25 UHF (no longer assigned)
Common EIA STD IRC HRC Band
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CATV T-7 7.00 SUB
CATV T-8 13.00 SUB
CATV T-9 19.00 SUB
CATV T-10 25.00 SUB
CATV T-11 31.00 SUB
CATV T-12 37.00 SUB
CATV T-13 43.00 SUB
CATV T-14 49.00 SUB
-----------
CATV 2-1 49.25 48.00 LO
CATV 2 02 55.25 55.25 54.00 LO
CATV 3 03 61.25 61.25 60.00 LO
CATV 4 04 67.25 67.25 66.00 LO
CATV A-8 4+ 01 73.25 72.00 LO
CATV A-7 5 05 79.25 78.00 LO
CATV A-6 6 06 85.25 84.00 LO
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CATV A-5 95 91.25 90.00 91.25 MID
CATV A-4 96 97.25 96.00 97.25 MID
CATV A-3 97 103.25 102.00 103.25 MID
CATV A-2 98 109.25 108.00 109.25 MID
CATV A-1 99 115.25 114.00 115.25 MID
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CATV 7 07 175.25 175.25 174.00 HI
CATV 8 08 181.25 181.25 180.00 HI
CATV 9 09 187.25 187.25 186.00 HI
CATV 10 10 193.25 193.25 192.00 HI
CATV 11 11 199.25 199.25 198.00 HI
CATV 12 12 205.25 205.25 204.00 HI
CATV 13 13 211.25 211.25 210.00 HI
-----------
CATV A 14 121.25 121.25 120.00 MID
CATV B 15 127.25 127.25 126.00 MID
CATV C 16 133.25 133.25 132.00 MID
CATV D 17 139.25 139.25 138.00 MID
CATV E 18 145.25 145.25 144.00 MID
CATV F 19 151.25 151.25 150.00 MID
CATV G 20 157.25 157.25 156.00 MID
CATV H 21 163.25 163.25 162.00 MID
CATV I 22 169.25 169.25 168.00 MID
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CATV J 23 217.25 217.25 216.00 SUPER
CATV K 24 223.25 223.25 222.00 SUPER
CATV L 25 229.25 229.25 228.00 SUPER
CATV M 26 235.25 235.25 234.00 SUPER
CATV N 27 241.25 241.25 240.00 SUPER
CATV O 28 247.25 247.25 246.00 SUPER
CATV P 29 253.25 253.25 252.00 SUPER
CATV Q 30 259.25 259.25 258.00 SUPER
CATV R 31 265.25 265.25 264.00 SUPER
CATV S 32 271.25 271.25 270.00 SUPER
CATV T 33 277.25 277.25 276.00 SUPER
CATV U 34 283.25 283.25 282.00 SUPER
CATV V 35 289.25 289.25 288.00 SUPER
CATV W 36 295.25 295.25 294.00 SUPER
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CATV AA 37 301.25 301.25 300.00 HYPER
CATV BB 38 307.25 307.25 306.00 HYPER
CATV CC 39 313.25 313.25 312.00 HYPER
CATV DD 40 319.25 319.25 318.00 HYPER
CATV EE 41 325.25 325.25 324.00 HYPER
CATV FF 42 331.25 331.25 330.00 HYPER
CATV GG 43 337.25 337.25 336.00 HYPER
CATV HH 44 343.25 343.25 342.00 HYPER
CATV II 45 349.25 349.25 348.00 HYPER
CATV JJ 46 355.25 355.25 354.00 HYPER
CATV KK 47 361.25 361.25 360.00 HYPER
CATV LL 48 367.25 367.25 366.00 HYPER
CATV MM 49 373.25 373.25 372.00 HYPER
CATV NN 50 379.25 379.25 378.00 HYPER
CATV OO 51 385.25 385.25 384.00 HYPER
CATV PP 52 391.25 391.25 390.00 HYPER
CATV QQ 53 397.25 397.25 396.00 HYPER
CATV RR 54 403.25 403.25 402.00 HYPER
CATV SS 55 409.25 409.25 408.00 HYPER
CATV TT 56 415.25 415.25 414.00 HYPER
CATV UU 57 421.25 421.25 420.00 HYPER
CATV VV 58 427.25 427.25 426.00 HYPER
CATV WW 59 433.25 433.25 432.00 HYPER
CATV XX 60 439.25 439.25 438.00 HYPER
CATV YY 61 445.25 445.25 444.00 HYPER
CATV ZZ 62 451.25 451.25 450.00 HYPER
CATV AAA 63 457.25 457.25 456.00 HYPER
CATV BBB 64 463.25 463.25 462.00 HYPER
CATV CCC 65 469.25 469.25 468.00 HYPER
CATV DDD 66 475.25 475.25 474.00 HYPER
CATV EEE 67 481.25 481.25 480.00 HYPER
CATV FFF 68 487.25 487.25 486.00 HYPER
CATV GGG 69 493.25 493.25 492.00 HYPER
CATV HHH 70 499.25 499.25 498.00 HYPER
CATV III 71 505.25 505.25 504.00 HYPER
CATV JJJ 72 511.25 511.25 510.00 HYPER
CATV KKK 73 517.25 517.25 516.00 HYPER
CATV LLL 74 523.25 523.25 522.00 HYPER
CATV MMM 75 529.25 529.25 528.00 HYPER
CATV NNN 76 535.25 535.25 534.00 HYPER
CATV OOO 77 541.25 541.25 540.00 HYPER
CATV PPP 78 547.25 547.25 546.00 HYPER
FM 1 88.10 FM FM 2 88.30 FM FM 3 88.50 FM FM 4 88.70 FM FM 5 88.90 FM FM 6 89.10 FM FM 7 89.30 FM FM 8 89.50 FM FM 9 89.70 FM FM 10 89.90 FM FM 11 90.10 FM FM 12 90.30 FM FM 13 90.50 FM FM 14 90.70 FM FM 15 90.90 FM FM 16 91.10 FM FM 17 91.30 FM FM 18 91.50 FM FM 19 91.70 FM FM 20 91.90 FM FM 21 92.10 FM FM 22 92.30 FM FM 23 92.50 FM FM 24 92.70 FM FM 25 92.90 FM FM 26 93.10 FM FM 27 93.30 FM FM 28 93.50 FM FM 29 93.70 FM FM 30 93.90 FM FM 31 94.10 FM FM 32 94.30 FM FM 33 94.50 FM FM 34 94.70 FM FM 35 94.90 FM FM 36 95.10 FM FM 37 95.30 FM FM 38 95.50 FM FM 39 95.70 FM FM 40 95.90 FM FM 41 96.10 FM FM 42 96.30 FM FM 43 96.50 FM FM 44 96.70 FM FM 45 96.90 FM FM 46 97.10 FM FM 47 97.30 FM FM 48 97.50 FM FM 49 97.70 FM FM 50 97.90 FM FM 51 98.10 FM FM 52 98.30 FM FM 53 98.50 FM FM 54 98.70 FM FM 55 98.90 FM FM 56 99.10 FM FM 57 99.30 FM FM 58 99.50 FM FM 59 99.70 FM FM 60 99.90 FM FM 61 100.10 FM FM 62 100.30 FM FM 63 100.50 FM FM 64 100.70 FM FM 65 100.90 FM FM 66 101.10 FM FM 67 101.30 FM FM 68 101.50 FM FM 69 101.70 FM FM 70 101.90 FM FM 71 102.10 FM FM 72 102.30 FM FM 73 102.50 FM FM 74 102.70 FM FM 75 102.90 FM FM 76 103.10 FM FM 77 103.30 FM FM 78 103.50 FM FM 79 103.70 FM FM 80 103.90 FM FM 81 104.10 FM FM 82 104.30 FM FM 83 104.50 FM FM 84 104.70 FM FM 85 104.90 FM FM 86 105.10 FM FM 87 105.30 FM FM 88 105.50 FM FM 89 105.70 FM FM 90 105.90 FM FM 91 106.10 FM FM 92 106.30 FM FM 93 106.50 FM FM 94 106.70 FM FM 95 106.90 FM FM 96 107.10 FM FM 97 107.30 FM FM 98 107.50 FM FM 98 107.70 FM FM 100 107.90 FM
Andy Davenport
Harvey Mudd College
Andy@HMCVAX.Claremont.Edu
Channel 1: 26.965 Mhz.
Channel 2: 26.975 Mhz.
Channel 3: 26.985 Mhz.
Channel 4: 27.005 Mhz.
Channel 5: 27.015 Mhz.
Channel 6: 27.025 Mhz.
Channel 7: 27.035 Mhz.
Channel 8: 27.055 Mhz.
Channel 9: 27.065 Mhz.
Channel 10: 27.075 Mhz.
Channel 11: 27.085 Mhz.
Channel 12: 27.105 Mhz.
Channel 13: 27.115 Mhz.
Channel 14: 27.125 Mhz.
Channel 15: 27.135 Mhz.
Channel 16: 27.155 Mhz.
Channel 17: 27.165 Mhz.
Channel 18: 27.175 Mhz.
Channel 19: 27.185 Mhz.
Channel 20: 27.205 Mhz.
Channel 21: 27.215 Mhz.
Channel 22: 27.225 Mhz.
Channel 23: 27.255 Mhz.
Channel 24: 27.235 Mhz.
Channel 25: 27.245 Mhz.
Channel 26: 27.265 Mhz.
Channel 27: 27.275 Mhz.
Channel 28: 27.285 Mhz.
Channel 29: 27.295 Mhz.
Channel 30: 27.305 Mhz.
Channel 31: 27.315 Mhz.
Channel 32: 27.325 Mhz.
Channel 33: 27.335 Mhz.
Channel 34: 27.345 Mhz.
Channel 35: 27.355 Mhz.
Channel 36: 27.365 Mhz.
Channel 37: 27.375 Mhz.
Channel 38: 27.385 Mhz.
Channel 39: 27.395 Mhz.
Channel 40: 27.405 Mhz.
08/99