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Amplifiers

TELESTE multipurpose amplifiers, series DXE

1
Manufacturer:
Type of amplifier:
 

Backward channel built in module; preset attenuator and equalizer; optimal interstage tilt; models with changeable effective gain and interstage tilt; built in splitters and shifters at the input and output; two outputs using replacement insert (demultiplier and shifters); all models up to 862 MHz.

Advantages:

  • backward channel built in module;
  • preset attenuator and equalizer;
  • optimal interstage tilt;
  • models with changeable effective gain and interstage tilt;
  • built in splitters and shifters at the input and output;
  • two outputs using replacement insert (demultiplier and shifters) all models up to 862 MHz.

Technical specifications:

Distant feed

DXE 851

DXE 852

DXE 853GA

DXE 854

DXE 859

DXE 859E

Local supply

DXE 861

DXE 862

DXE 863GA

DXE 864

DXE 869

DXE 869E

DXE866FC

Type

PD

PD

PD GA

PP

cascode PD

cascode PD

PP

Range, MHz

47...862

Effective gain, dB

29

34

40

30

40

39

38

Adjustment range Effective gain, dB

18

Input equalizer range, dB

0...25***

15****

0...25***

15****

Interstage tilt, dB

changeable

8

8

changeable

8

changeable

8

Non-linearity, dB

±0.6

Noise figure, dB

8.5

6.8

6.8

8

6.8

6.7

7

Output level, DIN 5004 B, dBmkV

122

122

126

119

122.5

122.5

119

Output level, CTB CENELEC , dBmkV

109

108.5

113

106

110

110

106

Output level, CSO CENELEC, dBmkV

114

113

115

110

114

110

110

Source voltage*

26...65

-

Source voltage**

207...244

Wattage**, W

26

20

21

13

23

24

14

Protection rating

IP54

Operating temperature range, °C

-40...+55

Dimensions, mm

244×206×100

Weight, kg

2.9

Contact sockets

PG11

F‑ connector

* - Distant feed model.

** - Local supply model.

*** - changeable equalizer, interval 2.5 dB.

**** - adjustable equalizer.

Amplifiers  block-diagram:

DXE 852, DXE 862, DXE 853GA, DXE 863GA, DXE 859, DXE 869, DXE 866 FC:

DXE 852, DXE 862, DXE 853GA, DXE 863GA, DXE 859, DXE 869, DXE 866 FC

DXE 859E, DXE 869E:

DXE 859E, DXE 869E

DXE 851, DXE 861:

DXE 851, DXE 861

DXE 854, DXE 864:

DXE 854, DXE 864

Backward channel pulleys:

DXR 208

DXR 209

DXR 188

DXR 189

Effective gain, dB

20

20

18

18

Diplexing filter (options), MHz

30/47; 50/70; 65/85

50/70; 65/85

30/47; 50/70; 65/85

50/70; 65/85

Made to order, the first value of diplexing filter band is added to the model of backward channel pulley, for example, DXR 208 30.

Signal demultipliers:

  • DSU 402- demultiplier 4/4 dB;
  • DTU 082- shifter 2/8 dB;
  • DTU 121- shifter 1/12 dB.

Can be set before and after the amplifying stage. If set before the amplifying stage they act as passive main elements of cable network. 

Auxiliary equipment:

  • DPS 003- spare power supply unit, 20...65 V;
  • DPS 230- spare power supply unit, 205...255 V;

DXB 102 - amplifiers  setting base