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Amplifiers

TERRA multipurpose trunk amplifiers, series DA2xx

1
Manufacturer:
Type of amplifier:

 

 

GaAs two-cycle output stage; changeable backward channel band owing to built in diplexer modules; built in inverted line equalizer; built in interstage modules of attenuator and  line equalizer which improve amplifier technical specifications; damp-proof  shielded molded case; static power supply unit; distant feed supply through Input HF-port; protection against voltage surge at inputs and outputs.

Advantages:

  • GaAs two-cycle output stage;
  • Changeable backward channel band owing to built in diplexer modules;
  • Built in inverted line equalizer;
  • Built in interstage modules of attenuator and line equalizer which improve amplifier technical specifications;
  • Damp-proof  shielded molded case;
  • Static power supply unit;
  • Distant feed supply through Input HF-port;
  • Protection against voltage surge at inputs and outputs.

Technical specifications:

Type

DA22X

DA22XP

DA22XC

DA23X

DA23XP

DA13XC

Frequency range*

47 / 75 / 87 - 862 MHz

Backward channel*

5-30 / 55 / 65 MHz

Input and output impedance

75 Ω

Effective gain, 20 °C

36 dB

Amplitude-frequency characteristic unevenness

±0.75 dB

Reflectance factor at the input and output

18 dB/40 MHz - 1.5 dB/octave

Input attenuator

0 - 18 dB

Input line equalizer

0 - 18 dB

Inverted line equalizer

0 - 9 dB with an  interval 1 dB

Noise figure

max. 6 dB

Output level IMD3=60 dB (DIN45004B)

122 dBµV

127 dBµV

Output level IMD2=60 dB (EN50083-3)

118 dBµV

122 dBµV

Output level (CTB, EN50083-3)**

108 dBµV (42 channels)

112 dBµV (42 channels)

Output level (CSO, EN50083-3)**

111 dBµV (42 channels)

113 dBµV (42 channels)

Output level (XMOD, EN50083-3)**

108 dBµV (42 channels)

111 dBµV (42 channels)

Source voltage, 50 Hz

24 ÷ 65 V

187 ÷ 250 V

24 ÷ 65 V/187 ÷ 250 V

24 ÷ 65 V

187 ÷ 250 V

24 ÷ 65 V/187 ÷ 250 V

Wattage, max.

13 W

11 W

13/11 W

17 W

14.5 W

17/14.5 W

Current consumption

24 V AC

0.77 A

-

0.82A/-

1 A

-

1 A/-

42 V AC

0.49 A

-

0.55A/-

0.67 A

-

0.67 A/-

65 V AC

0.36 A

-

0.41A/-

0.5 A

-

0.5 A/-

Maximum liaison current

7 A

Attenuation coefficient at the test terminal at the input (non directional)

-20 ± 2.0 dB

Attenuation coefficient at the test terminal at the output (directional)

-20 ± 0.5 dB

Input and output connection type

PG11

Test terminal connection type

F

Signal ratio to background interference (7А)

min 65 dB

Case protection rating

IP64

Operating temperature range

-20 °C ÷ +50 °C

Dimensions/ Weight (packed)

229 × 159 × 87 mm (case); 261 × 159 × 87 mm (adjustment dimensions)/ 2.5 kg

* - frequency range depends on built in diplexer.
** - output level (CTB, CSO, XMOD) is measured with an interstage line equalizer 6 dB.

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