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Switching units (multiswitches)

Headend and linear amplifiers TERRA SA901, SA911

2
Manufacturer:
System:
type of equipment:

 

 

Extras:  

  • - for compensation of transmission loses in multi-switches and connecting cables in the 9-cable distribution network;
  • - can be cascaded with multi-switches MS951, MS952;
  • - signal level control at each input;
  • - an integrated regulated equalizer and two-step amplifier in the channel of terrestrial TV;
  • - fixed pre-correction of amplitude frequency characteristics on 7 dB for intermediate frequency of СТВ;

SA901
8-channel headend amplifier of СТВ and terrestrial TV signals with integrated switched mode power supply, allowing to provide power supply: upwards18 V DC along the H polarization lines and 14 V DC along the V polarization lines, downwards18 V

DC along the H polarization lines (commuted)

 

SA911
8-channel linear amplifier of СТВ and terrestrial TV signal; powered from external source via H polarization lines; power pass-through along V and H polarization lines (commuted via H lines)

 

Technical characteristics:

TYPE

SA901

SA911

Frequency range

satellite TV

950 - 2400 MHz

terrestrial TV

47-862 MHz

Amplification factor

satellite TV

15-22 dB (0 ÷ -10 dB regulated)

terrestrial TV

17 dB (0 ÷ -20 dB regulated)

Pre-correction of amplitude frequency characteristics’ inclination

satellite TV

7 dB (fixed)

terrestrial TV

0 ÷ -15 dB (regulated)

Reverse isolation

SAT/SAT

30 dB

SAT/Terr.

30 dB

Noise figure, typical

< 9 dB

Output level IMD3=60 dB (DIN45004B)

112 dBµV (for terrestrial TV)

Output level IMD3=35 dB (EN50083-3)

114 dBµV (for satellite TV)

External power supply of devices

via V lines

14 V 0.6 A max

-

via H lines

18 V 2A max (commuted)

-

via Terr. line

12 V 0.1A max (commuted)

-

Through current commuted via H lines

2 A max

Power consumption

230 V~ 50 Hz 11 W*

DC 9-18 V 7 W**

Operating temperature range

-20° ÷ +50° C

Dimensions / Weight (packaged)

291x128x53 mm/1 kg

234x128x53 mm/0.75 kg

 

 

* without external load by DC; with maximum load by DC - 42 W; 
** SA911 power supply from the trunk H polarization lines.