Installation and Operation
If the FCC OFFSET LED is lit, confirm with a frequency counter whether the
automatic offset is correct for the system. If it is incorrect, rotate the rear panel
FCC OFFSET switch to select the correct offset. Alternately, refer to Table 4-1.
Table 4-1. CATV Channels and Frequencies
NCTA
FCC
Video
Number
Channel
Freq.
Number
(MHz)
2
2
55.25
3
3
61.25
4
4
67.25
5
5
77.25
6
6
83.25
7
7
175.25
8
8
181.25
9
9
187.25
10
10
193.25
11
11
199.25
12
12
205.25
13
13
211.25
14
A
121.25
15
B
127.25
16
C
133.25
17
D
139.25
18
E
145.25
19
F
151.25
20
G
157.25
21
H
163.25
22
I
169.25
23
J
217.25
24
K
223.25
25
L
229.25
26
M
235.25
27
N
241.25
28
O
247.25
29
P
253.25
30
Q
259.25
31
R
265.25
32
S
271.25
33
T
277.25
34
U
283.25
35
V
289.25
36
W
295.25
37
AA
301.25
38
BB
307.25
39
CC
313.25
40
DD
319.25
41
EE
325.25
42
FF
331.25
Page 4-4
NOTE
Audio
Offset
Freq.
Freq.
Number
(MHz)
(kHz)
59.75
0
65.75
0
71.75
0
81.75
0
87.75
0
179.75
0
185.75
0
191.75
0
197.75
0
203.75
0
209.75
0
215.75
0
125.75
+12.5
131.75
+12.5
137.75
+12.5
143.75
0
149.75
0
155.75
0
161.75
0
167.75
0
173.75
0
221.75
0
227.75
0
233.75
+12.5
239.75
+12.5
245.75
+12.5
251.75
+12.5
257.75
+12.5
263.75
+12.5
269.75
+12.5
275.75
+12.5
281.75
+12.5
287.75
+12.5
293.75
+12.5
299.75
+12.5
305.75
+12.5
311.75
+12.5
317.75
+12.5
323.75
+12.5
323.75
+12.5
329.75
+25.0
Owner's Manual
NCTA
FCC
Video
Channel
Freq.
Number
(MHz)
43
GG
337.25
44
HH
343.25
45
I I
349.25
46
JJ
355.25
47
KK
361.25
48
LL
367.25
49
MM
373.25
50
NN
379.25
51
OO
385.25
52
PP
391.25
53
QQ
397.25
54
RR
403.25
55
SS
409.25
56
TT
415.25
57
UU
421.25
58
VV
427.25
59
WW
433.25
60
XX
439.25
61
YY
445.25
62
ZZ
451.25
63
AAA
457.25
64
BBB
463.25
65
CCC
469.25
66
DDD
475.25
67
EEE
481.25
68
FFF
487.25
69
GGG
493.25
70
HHH
499.25
71
I I I
505.25
72
JJJ
511.25
73
KKK
517.25
74
LLL
523.25
75
MMM
529.25
76
NNN
535.25
77
OOO
541.25
78
PPP
547.25
95
A-5
91.25
96
A-4
97.25
97
A-3
103.25
98
A-2
109.25
99
A-1
115.25
TVM450/S/TVM550/S/TVM550II/TVM550IIS
Audio
Offset
Freq.
Freq.
(MHz)
(kHz)
341.75
+12.5
347.75
+12.5
353.75
+12.5
359.75
+12.5
365.75
+12.5
371.75
+12.5
377.75
+12.5
383.75
+12.5
389.75
+12.5
395.75
+12.5
401.75
+12.5
407.75
0
413.75
0
419.75
0
425.75
0
431.75
0
437.75
0
443.75
0
449.75
0
455.75
0
461.75
0
467.75
0
473.75
0
479.75
0
485.75
0
491.75
0
497.75
0
503.75
0
509.75
0
515.75
0
521.75
0
527.75
0
533.75
0
539.75
0
545.75
0
551.75
0
95.75
0
101.75
0
107.75
0
113.75
+25.0
119.75
+25.0