Cisco GainMaker Optoelectronic Node 1GHz with 65 86 MHz Split Data Sheet
GainMaker Node – 5-40/52-1002 MHz with RF Redundancy
7
RF Section Specifications for Amplifier in Redundant Mode, continued
Launch Amplifier Performance - Reverse
Units
Reverse
Notes
Amplifier Type
-
Push-Pull
Operational Gain (minimum)
dBmV
19.5
19,23
Frequency Response
dB
±0.5
Internal Tilt (+/- 1 dB)
dB
-0.5
Noise Figure
dB
12
19,23
Reference Output Levels @ 5 and 42 MHz
dBmV
35
18
6 NTSC Channels (CW)
Composite Triple Beat
dB
92
Cross Modulation
dB
80
Composite Second Order
dB
82
Station Performance – Reverse
(Station port input to optical transmitter input)
(Station port input to optical transmitter input)
Units
Operational Gain (minimum)
dB
17.5
19,20
Station Delay Characteristics 40 / 52 Split
Forward
(Chrominance to Luminance Delay)
Forward
(Chrominance to Luminance Delay)
Reverse
(Group Delay in 1.5 MHz BW)
Frequency (MHz)
Delay (nS)
Frequency (MHz)
Delay (nS)
55.25 - 58.83
26
5.0 - 6.5
60
61.25 - 64.83
12
6.5 - 8.0
21
67.25 - 70.83
8
8.0 - 9.5
12
77.25 - 80.23
4
35.5 - 37.0
17
37.0 - 38.5
23
38.5 - 40.0
42
Unless otherwise noted, specifications reflect typical performance and are referenced to 68
°F (20°C). Specifications are based
upon measurements made in accordance with SCTE/ANSI standards (where applicable), using standard frequency assignments.
Notes for Redundant Mode RF Section Specifications:
13. Reference output tilt and internal tilt are both “Linear” tilt.
14. Forward Gain and Noise Figure measured with a 0 dB EQ and 0 dB pad in the RF Redundancy module located in the housing lid.
15. Forward internal tilt specified is primarily due to an on-board equalizer and a factory configured 8.5 dB linear interstage equalizer
14. Forward Gain and Noise Figure measured with a 0 dB EQ and 0 dB pad in the RF Redundancy module located in the housing lid.
15. Forward internal tilt specified is primarily due to an on-board equalizer and a factory configured 8.5 dB linear interstage equalizer
(ISEQ).
16. The forward reference output tilt specified is achieved via field installation of appropriate input EQ, in conjunction with the internal tilt
of the launch amplifier.
17. Stated distortion performance is for launch amplifier section operated at reference output levels and tilt.
18. Reverse output reference level at the RF output of the launch amplifier.
19. Reverse Operational Gain, Noise Figure, and Return Loss are specified without reverse switch option. Reverse Switch option will
18. Reverse output reference level at the RF output of the launch amplifier.
19. Reverse Operational Gain, Noise Figure, and Return Loss are specified without reverse switch option. Reverse Switch option will
not work in this configuration.
20. Station reverse gain from station input(s) to redundant RF output. With 0 dB reverse input pad, 1 dB reverse output pad, and 0 dB
reverse EQ in launch amplifier. Includes optical interface board and redundant module losses.
21. “Digital” refers to 550 - 1002 MHz loading with QAM carriers at -6 dB relative to analog video carrier levels.
22. “Digital” refers to 650 - 1002 MHz loading with QAM carriers at -6 dB relative to analog video carrier levels.
23. Reverse Gain and Noise Figure for launch amp with 0 dB reverse input pad, 0 dB reverse output EQ, and 1 dB output pad.
22. “Digital” refers to 650 - 1002 MHz loading with QAM carriers at -6 dB relative to analog video carrier levels.
23. Reverse Gain and Noise Figure for launch amp with 0 dB reverse input pad, 0 dB reverse output EQ, and 1 dB output pad.