Rf channel frequencies, Contemporary research 27, Ice-he ethernet head end – Contemporary Research ICE-HE User Manual
Page 27

Contemporary Research
27
ICE-HE Ethernet Head End
Channel
CATV/IRC
HRC
FCC
Chan
CATV
HRC
FCC
Chan
CATV
HRC
FCC
Chan
CATV
HRC
FCC
T Band
High
47
361.25
360.0180
669.25
79
553.25
552.0276
861.25
iCC-Net
5.6 (In)
7
175.25
174.0087
175.25
48
367.25
366.0183
675.25
80
559.25
558.0279
867.25
T 7
7.00
8
181.25
180.0090
181.25
49
373.25
372.0186
681.25
81
565.25
564.0282
873.25
T 8
13.00
9
187.25
186.0093
187.25
50
379.25
378.0189
687.25
82
571.25
570.0285
879.25
T 9
19.00
10
193.25
192.0096
193.25
51
385.25
384.0192
693.25
83
577.25
576.0288
885.25
T 10
25.00
11
199.25
198.0099
199.25
52
391.25
390.0195
699.25
84
583.25
582.0291
T 11
31.00
12
205.25
204.0102
205.25
53
397.25
396.0198
705.25
85
589.25
588.0294
T 12
37.00
13
211.25
210.0105
211.25
54
403.25
402.0201
711.25
86
595.25
594.0297
T 13
43.00
Super
55
409.25
408.0204
717.25
87
601.25
600.0300
T14
49.00
23
217.25
216.0108
525.25
56
415.25
414.0207
723.25
88
607.25
606.0303
Low
24
223.25
222.0111
531.25
57
421.25
420.0210
729.25
89
613.25
612.0306
2
55.25
54.0027
55.25
25
229.25
228.0114
537.25
58
427.25
426.0213
735.25
90
619.25
618.0309
3
61.25
60.0030
61.25
26
235.25
234.0117
543.25
59
433.25
432.0216
741.25
91
625.25
624.0312
4
67.25
66.0033
67.25
27
241.25
240.0120
549.25
60
439.25
438.0219
747.25
92
631.25
630.0315
iCC-Net
74.7 (Out)*
72.0036*
28
247.25
246.0123
555.25
61
445.25
444.0222
753.25
93
637.25
636.0318
5
77.25/79.25
78.0039
77.25
29
253.25
252.0126
561.25
62
451.25
450.0225
759.25
94
643.25
642.0321
6
83.25/85.25
84.0042
83.25
30
259.25
258.0129
567.25
Hyper
100
649.25
648.0324
FM
31
265.25
264.0132
573.25
63
457.25
456.0228
765.25
101
655.25
654.0327
95
91.25
90.0045
91.25
32
271.25
270.0135
579.25
64
463.25
462.0231
771.25
102
661.25
660.0330
96
97.25
96.0048
97.25
33
277.25
276.0138
585.25
65
469.25
468.0234
777.25
103
667.25
666.0333
97
103.25
102.0051
103.25
34
283.25
282.0141
591.25
66
475.25
474.0237
783.25
104
673.25
672.0336
Mid
35
289.25
288.0144
597.25
67
481.25
480.0240
789.25
105
679.25
678.0339
98
109.25
108.0054
109.25
36
295.25
294.0147
603.25
68
487.25
486.0243
795.25
106
685.25
684.0342
99
115.25
114.0057
115.25
37
301.25
300.015
609.25
69
493.25
492.0246
801.25
107
691.25
690.0345
14
121.25
120.0060
471.25
38
307.25
306.0153
615.25
70
499.25
498.0249
807.25
108
697.25
696.0348
15
127.25
126.0063
477.25
39
313.25
312.0156
621.25
71
505.25
504.0252
813.25
109
703.25
702.0351
16
133.25
132.0066
483.25
40
319.25
318.0159
627.25
72
511.25
510.0255
819.25
110
709.25
708.0354
17
139.25
138.0069
489.25
41
325.25
324.0162
633.25
73
517.25
516.0258
825.25
111
715.25
714.0357
18
145.25
144.0072
495.25
42
331.25
330.0165
639.25
74
523.25
522.0261
831.25
112
721.25
720.0360
19
151.25
150.0075
501.25
43
337.25
336.0168
645.25
75
529.25
528.0264
837.25
113
727.25
726.0363
20
157.25
156.0078
507.25
44
343.25
342.0171
651.25
76
535.25
534.0267
843.25
114
733.25
732.0366
21
163.25
162.0081
513.25
45
349.25
348.0174
657.25
77
541.25
540.0270
849.25
115
739.25
738.0369
22
169.25
168.0084
519.25
46
355.25
354.0177
663.25
78
547.25
546.0273
855.25
116
745.25
744.0372
Frequencies -—The visual carrier frequency (channels T7-116) is shown in this chart, in MHz. For the aural carrier frequency, add 4.5 MHz to the visual carrier. The lower edge
of the channel is 1.25 MHz below the visual carrier and the upper edge is 4.75 MHz above the visual carrier.
CATV/IRC — IRC spacing is the same as standard CATV frequencies, except for Channels 5 and 6.
HRC/IRC — About 10% of CATV systems use these alternate frequency plans, created to reduce ―beat‖ interference.
FCC – U.S. Broadcast VHF/UHF
*Channel 1 — IRC/HRC spacing created a Channel 1 between 4 and 5, the rarely used channel must be shifted to different frequency for IC-Net operation