Cisco Series 9900 RF Signal Manager Active Products (NTSC) 数据表

 

2

 
 

 
This product has a double duty - to provide high isolation between like frequencies when used with “targeted” or 
“narrowcast” applications, and to provide up to 20 dB of gain when required to drive forward fiber optics, etc.  In 
cascaded amplifier applications, this product works well as the first gain stage preceding the Power Amp product. 

PAD

EQ

PAD

PAD

-15dB 

Combined RF from main 

combining network 

(Common Channels)

Alt Input - Narrowcast or 
Targeted Channels from 

unique RF sources

45-1000 MHz

RF Out

-20dB 

-20 dB

Test Point

Out

 

 
 
 
 
 
 

 
Insertion Amp 

Pass Band 

MHz 

45-1000 

 

Frequency Response 

dB 

± 0.5 

 

Return Loss 

dB 

22 

(18 minimum)

 

 

Current Draw @ 28 V DC 

Amps 

305 milliamps 

 

Power dissipation 

Watts 

8.5 

 

Insertion Loss (narrowcast port) 

dB 

-15.5 relative to output level 

 

Isolation (Narrowcast port to IN port) 

dB 

63  

(60 minimum)

 

 

Isolation (OUT port to IN port) 

dB 

34 

 

Ingress Isolation 

dB 

110  

(100 minimum)

 

 

Test Point (

± 0.5 dB) 

dB -20   

Reference Output Level 

dBmV 

33 

 

Maximum Output Level 

dBmV 

38 

 

Operational Gain (+/- 1 dB) 

dB 

20 

 

Noise Figure 

dB 

5 

 

Composite Triple Beat 

dBc 

-81 

(-79 minimum)

 

 

Cross Modulation 

dBc 

-75 

(-72 minimum)

 

 

Composite Second Order (high side) 

dBc 

-74 

(-72 minimum)

 

 

 
Note: 
1.  112 CW NTSC channels loaded from 50 – 750 MHz.  Digital refers to 750 – 1000 MHz loading with QAM carriers at -6 dB 

levels relative to analog video carrier levels. 

 
 

Unless otherwise noted, the above specifications reflect typical performance at stated reference levels in the recommended operating 
configuration(s) with 0 dB pads and EQs.  Unless otherwise noted, specifications are based on measurements made using standard frequency 
assignments and are referenced to 25

°C (77°F).