5 CATV RF Amplifier, buy Bi-directional Amplifier CATV TGM2800C trunk Bi-directional Amplifier on China Suppliers Mobile

Product Details

Bi-directional Amplifier CATV TGM2800C trunk Bi-directional Amplifier

Overview

TGM2800C amplifier is specially designed for HFC network “last mile” access application.GaAs technology ensure high output level, up to 112dBuV(single output port), 108dBuV(dual output ports).

Features

GaAs amplifier module at output stage, high output level, excellent CTB,CSO
Aluminum die-casting housing, excellent water-proof and heat dissipation performance
-20dB test points at both the input port and the Output port
Independent return path; plug-in reverse attenuator; -20dB test points at the input port and the output port of the reverse path.
Plug-in attenuator and equalizer at the forward input, reverse output and inter-stage.
862MHz bandwidth, bi-directional transmission
Modular design

Diagram

Specification

Structure

1. RF IN 1

2. RF IN -20dB TP

3. RF OUT 1

4. RF OUT 2

5. 220V/60V Power IN

6. Diplex Filter

7. Diplex Filter

8. Forward Equalizer

9. Return Equalizer

10. Interstage Equalizer

11. Forward Input Pad

12. Return Output Pad

13. Interstage Pad

14. Return Input Pad

15. Power Thru RF IN 1

16. Power Thru RF OUT 1

17. Power Thru RF OUT 2

18. Forward input amplifier module

19. Return RF amplifier module

20. Forward output amplifier module

21. Plug - in 2-Splitter/TAP

22. Power Switch

23. Return Output -20dB TP

24. Return Input -20dB TP

25. Forward Output -20dB TP

Specifications

Item	Unit	Description		Remark
Item	Unit	Forward	Reverse	Remark
Bandwidth	Hz	47/87~750/862	5~30/65
Technology		Push-Pull,Power-Double, GaAs	Push-Pull
Flatness	dB	±0.75	±0.75
Return Loss	dB	≥16	≥16
AC Power Through	A	12
Hum	dB	≥65	≥65
DC Current(24V)	A	0.7	0.2
Test	dB	-20±1.5	-20±1.5
Recommended RF Output Level (Power-Double)	dBmV	48.0@862 MHz 39.0@87 MHz	35@65 MHz 35@5 MHz
Full Gain(Min)	dB	35	20~24	Reverse Full Gain not include the loss of the reverse mixer, Reverse Gain can be changed by selecting different gain reverse amplifier module
Slope	dB	9		Tested at the recommended RF output level.
Noise Figure	dB	≤10	≤10	0dBbalance
Time Delay	ns	≤10	5~30≤30,5~65≤20
Surge Protection	KV	5
Distortion		59 PAL	3 PAL CW
C/CTB C/XM C/CSO	dB dB dB	≥70 ≥65 ≥69	≥88 ≥80 ≥82

Power

Item	Unit	Description	Remark
Input Voltage	V	AC 50Hz 40~60 or 220V
Output Voltage	V	DC +24V
Output DC Current	A	+24V:1.0A Max,
Work Temperature	℃	-40℃~+60℃

Cable Connect

The RF cables carry both forward and reserve path signals. The RF cables also supply the 24 to 75 V ac power or 110 to 275V ac power (optional) to operate the amplifier.

Follow these steps to install the RF cables:

1. Determine which ports receive an RF cable for your configuration.
2. Prepare extension loops on the input and output cables.
3. Install the connectors on the cables according to the manufacturer’s instructions.
4. Carefully install the coaxial connectors onto the amplifier entry ports. Do not bend the center conductors.
5. Connect the cables to the adapters.
6. Tighten the cable connector’s seizure screw to ensure contact with connector pin. Do not over-tighten.

Power Supply

TGM2800C amplifier requires input power of 24 to 75 V ac or 110 to 275V ac. Any RF input and output port can be through power and also have one power inserter port.

NOTE: Do not supply power by two or more than two RF cables at one time.

Setup and Operation

Tools and test equipment required for setup are list below:

1. Digital voltmeter with .001 V dc resolution
2. Multiple frequency signal generator
3. Field strength meter
4. 1GHz Adapter

Forward Path Setting

1. There is a station before the first and second amplify module for inserting a attenuator, select right attenuator to adjust input level.
2. There are –20dB test ports at anterior and posterior of amplify module, inspect module by selecting assortative adapter.
3. The slope should be changed according to demand. Adjusting interstage equalizer can change that. The designed slope is 9 dB.

Customers who bought this product will also consider our following products:

TGM100D TGM2800D

TGM2800F

and other product, for futher information, please refer to our company website.