Cisco Cisco 1 GHz GainMaker Amplifier データシート

®

 

4

 

 

Station Delay Characteristics 
Forward (Chrominance to Luminance Delay) 

Reverse (Group Delay in 1.5 MHz bandwidth) 

55.25 - 58.83 

37 

5.0 - 6.5  

60 

61.25 - 64.83 

14 

6.5 - 8.0 

22 

67.25 - 70.83 

8 

8.0 - 9.5 

12 

77.25 - 80.83 

4 

37.5 - 39.0  

16 

 

 

39.0 - 40.5 

22 

 

 

40.5 - 42.0 

35 

 

 

AC Current (A)  0.66 0.66 0.64 0.64 0.63 0.64 0.73 0.78  0.83 0.93 1.05 1.19 

Thermal 1.41 

Power (W) 

38.6 38.5 38.4 38.2 38.1 38.0 38.0 38.0 38.0 37.9 38.0 38.1

AC Current (A)  0.68 0.68 0.65 0.66 0.65 0.66 0.75 0.80  0.86 0.96 1.08 1.25 

AGC 1.46 

Power (W) 

39.9 39.8 39.7 39.5 39.4 39.3 39.3 39.3 39.3 39.2 39.3 39.5

AC Current (A)  0.71 0.71 0.69 0.70 0.70 0.72 0.81 0.87  0.94 1.04 1.20 1.38 

AGC 
with Status Mon. & 
Reverse Switch 

1.60 

Power (W) 

43.6 43.4 43.3 43.2 43.1 43.0 43.0 43.0 42.9 42.9 43.0 43.3

Data is based on stations configured for 2-way operation.  AC currents specified are based on measurements made with  
typical CATV type ferro-resonant AC power supply (quasi-square wave), and standard GainMaker System Amplifier power 
supply (2.2 amp, 24 V DC, pn 734771).  
 
DC supply has a user configurable 30 V, 40 V, or 50 V AC under voltage lockout circuit.  Default setting is 30 V.  40 V or 50 V 
AC under voltage lockout may be selected by changing the position of the lockout jumper.   

 

 
 

 

Operating Temperature Range 

-40 to +140

°F (-40 to +60°C) 

Mechanical  
Housing Dimensions 

17.3 in. L x 7.2 in. H x 7.8 in. D 
439.4 mm L x 182.9 mm H x 198.1 mm D 

Weight 
• 

Housing with power supply 

• Module 

 
12 lbs, 5 oz. (5.6 kg) 
5 lbs, 5 oz. (2.4 kg) 

 
 
 
 
 
 
 

 

Notes: 
1. 

Reference output tilt is specified as “LINEAR” tilt (as opposed to “cable” tilt).  

2. 

Forward Gain and Noise Figure measured with 0 dB input EQ and 1 dB input pad. 

3. 

Down tilt, the effect of cable, is represented by a (-).  Up tilt, the effect of equalization, is represented by a (+).  Forward internal tilt 
specified is primarily due to an on board equalizer and a factory configured 10.5 dB plug-in interstage equalizer. 

4. 

78 CW NTSC channels loaded from 55 to 550 MHz.  Digital refers to 550-1002 MHz loading with QAM carriers at -6 dB levels relative to 
analog video carrier levels. 

5. 

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

6. 

Reverse Gain and Noise Figure for station with 0 dB reverse input pad, 0 dB reverse output EQ, and 1 dB output pad. 

7. 

Reverse Operational Gain, Noise Figure, and Return Loss are specified without reverse switch option.  If switch is installed, reduce Gain 
by 0.5 dB, increase Noise Figure by 0.5 dB, and decrease Return Loss by 1 dB. 

8. 

94 CW NTSC channels loaded from 55 to 650 MHz.  Digital refers to 650-1002 MHz loading with QAM carriers at -6 dB levels relative to 
analog video carrier levels. 

9. 

110 CW NTSC channels loaded from 55 to 750 MHz.  Digital refers to 750-1002 MHz loading with QAM carriers at -6 dB levels relative to 
analog video carrier levels. 

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.