Cisco Model GS7000 4-Port Node 1 GHz with 42 54 Split Data Sheet

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Pass Band 

MHz 

54-1002 

5-42 

 

Input/Output Port Return Loss 

dB 

17 

16 

1,5 

Hum Modulation @ 12 A 

dB 

70 (54-870 MHz) 

60 (871-1002 MHz) 

60 (5-10 MHz) 

70 (11-42 MHz) 

 

Hum Modulation @ 15 A 

dB 

65 (54-870 MHz) 

60 (871-1002 MHz) 

60 (5-10 MHz) 

65 (11-42 MHz) 

 

Test Points (±0.5 dB) 

dB 

-20 

-20 

 

 
 

Amplifier Type 

- 

GaAs FET 

 

Operational Gain (minimum) 

dB 

32 

1 

Frequency Response  

dB 

   0.5 

1 

Internal Tilt (±1 dB) 

dB 

14.5 

1,2 

Port to Port Isolation  

dB 

65 (54-750 MHz) 

55 (751-1002 MHz) 

1 

Noise Figure @…                                     54 MHz 
                                                              1002 MHz 

dB 14.0 

 

12.0 

1 

Reference Output Levels @…              1002 MHz 
                                                                870 MHz 
                                                                750 MHz 
                                                                650 MHz 
                                                                550 MHz 
                                                                  55 MHz  

dBmV 49.5 

47.5 
45.7 
44.0 
42.5 
35.0 

 
 
 
 
 
 

Reference Output Tilt  (55-1002 MHz) 

dB 

14.5 

2,3 

 

6 

Composite Triple Beat 

dB 

78 

4 

Cross Modulation 

dB 

68 

4,8 

Composite Second Order (high side) 

dB 

70 

4 

 

7 

Composite Triple Beat 

dB 

73 

4 

Cross Modulation 

dB 

65 

4,7 

Composite Second Order (high side) 

dB 

67 

4 

 

  Amplifier Type 

- 

GaAs FET 

 

  Operational Gain (minimum) 

dB 

-2 

5 

  Frequency Response 

dB 

   0.5 

5 

  Internal Tilt (+/- 1 dB) 

dB 

0 

5 

  Path to Path Isolation 

dB 

55 

5 

  Noise Figure  

dB 

7.5 

5 

 

Notes: 
1. 

Forward performance is for station from output of optical Rx to node RF output port, with 0 dB pad in optical interface board (OIB), any 
forward configuration module, 3 dB interstage (I/S) pad, 7.5 dB linear I/S EQ, factory select output pad, and signal director jumper.  
Includes OIB losses. 

2. 

Reference output tilt and internal tilt are both “Linear” tilt. 

3. 

The forward reference output tilt specified is achieved via field installation of appropriate linear I/S EQ, in conjunction with the internal tilt 
of the launch amplifier and the tilt associated with the optical link (transmitter/receiver combination). 

4. 

Stated distortion performance is for launch amplifier section operated at reference output levels and tilts.  Full station performance can be 
determined by combining optic performance and launch amplifier performance. 

5. 

Reverse performance is for station from reverse input port to input of reverse optical transmitter module, with 0 dB reverse input pad. 

6. 

“Digital” refers to 550 - 1002 MHz loading with QAM carriers at -6 dB relative to analog video carrier levels. 

7. 

“Digital” refers to 650 - 1002 MHz loading with QAM carriers at -6 dB relative to analog video carrier levels. 

8. 

X-mod (@ 15.75 kHz) specified using 100% synchronous modulation and frequency-selective measurement device. 

 

 

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.