DRAKE MPM860AG Посібник - Сторінка 4
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BROADCAST TV CHANNEL OUTPUT FREQUENCIES
CATV
TABLE 2: BC TV
CATV
BC
+100
TV
VHF BROADCAST CHANNELS
Visual Carrier
Channel Number
Frequency (MHz)
2
55.25
61.25
3
4
67.25
5
77.25
6
83.25
7
175.25
8
181.25
9
187.25
10
193.25
11
199.25
12
205.25
13
211.25
CATV
CATV
BC
+100
TV
UHF BROADCAST CHANNELS
Visual Carrier
Channel Number
Frequency (MHz)
471.25
14
477.25
15
483.24
16
489.25
17
495.25
18
501.25
19
507.25
20
513.25
21
519.25
22
525.25
23
531.25
24
537.25
25
543.25
26
549.25
27
28
555.25
561.25
29
30
567.25
573.25
31
32
579.25
585.25
33
34
591.25
597.25
35
36
603.25
609.25
37
38
615.25
621.25
39
40
627.25
633.25
41
42
639.25
645.25
43
44
651.25
657.25
45
46
663.25
669.25
47
48
675.25
681.25
49
50
687.25
693.25
51
52
699.25
705.25
53
54
711.25
717.25
55
56
723.25
729.25
57
58
735.25
741.25
59
60
747.25
753.25
61
62
759.25
765.25
63
64
771.25
777.25
65
66
783.25
789.25
67
68
795.25
801.25
69
MPM860AG
Input
Input Level:
-39 dBm / +10dBmV, ±3dB
Input Impedance:
75 ohm, 18dB return loss
Input frequency:
Channel 3 (61.25 MHz Visual Carrier) or
Channel 4 (67.25 MHz Visual carrier)
Selectable via rear panel switch.
Output
Frequency Range:
54 to 864 MHz.
Standard CATV channels 2 to 135, Normal operation.
HRC
Broadcast channels 2 - 69, Selected via internal jumper.
Automatic, +12.5 kHz or +25 kHz channel dependant.
FCC Offsets:
+45 dBmV
Output level:
75 Ohm, 10 dB return loss.
Output Impedance:
±5 kHz
Frequency Stability:
-60 dB @ +45 dBmV out.
Spurious:
-77dBc at greater than ± 12 MHz offset at +45 dBmV output,
Broadband Noise:
4 MHz bandwidth.
57 dB, 4 MHz bandwidth.
In Channel C/N:
In Channel
Within 2 dB
Frequency Response:
The output level of the MPM860AG is intended to be set at or
Output Level Note:
very near +45dBmV. The front panel gain control adjusts the
input level into the conversion circuitry and not the final
output attenuation. For best noise and spurious performance
please adjust the output level to +45 dBmV with the actual
input that will be used with the device. If more than 1 or 2 dB
of variation is needed to properly equalize the system,
appropriate pads should be placed at the output of the
MPM860AG.
GENERAL
+5 V ±5% at 400 mA
DC Power Input:
+12 V ±5% at 200 mA
0
0
C to +50
Operating Temperature:
1" W x 3.5" H x 7.5" D
Size:
12 oz.
Weight:
Specifications subject to
change without notice or obligation.
SPECIFICATIONS
IRC Channels 1 - 135, Selected via internal jumper.
,
0
C ambient.
7