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Descriptions of the satellite LNB outputs and the multiswitch inputs depend on their manufacturers. To avoid confusion, our movie illustrates the differences and clarifies the issue.
€211.14
| Price | Disc. | Quantity | Validity |
|---|---|---|---|
| €211.14 | 0 % | from 1 piece |
Available
The SA-91DL amplifier (without power supply) is designed for use in multiswitch installations. It is equipped with four satellite inputs and one DVB-T/T2/Radio input.
• IF signal boosting and levelling for 8 polarisation-band pairs
• DVB-T/T2 and radio signal boosting and levelling
• LTE signal attenuation (band > 790 MHz)
• Compensation of attenuation characteristics of coaxial cable
• Powering other elements of the installation, such as LNBs, DVB-T/T2 preamplifiers, multiswitches or other bus amplifiers (in the case of connecting 18 V DC power supply)
• Open casing guaranteeing high level of shielding - class A
• DVB-T/T2 and radio signal boosting and levelling
• LTE signal attenuation (band > 790 MHz)
• Compensation of attenuation characteristics of coaxial cable
• Powering other elements of the installation, such as LNBs, DVB-T/T2 preamplifiers, multiswitches or other bus amplifiers (in the case of connecting 18 V DC power supply)
• Open casing guaranteeing high level of shielding - class A
Details
The SA-91DL R70911 multiswitch bus amplifier is designed for use in SMATV collective systems. Equipped with eight satellite inputs and one DVB-T/Radio input, it allows to amplify and equalize signal levels for each of the polarization-band pairs (satellite TV) and terrestrial TV. It is used as an interstage amplifier in selected points of the installation (fed via the H-polarisation signal lines from the SA-91L amplifier) or as an input amplifier when the R71465 power supply is used to feed it.
The SA-91DL R70911 multiswitch bus amplifier has a built-in filter for LTE signals to eliminate unwanted signals in the 800MHz band (791- 862 MHz frequencies) for data services (LTE).
Key features:
- amplification and levelling of IF signals for 8 polarisation-band pairs
- DVB-T and radio signal boosting and levelling
- LTE signal attenuation (band > 790 MHz)
- compensation of attenuation characteristics of coaxial cable
- supply of other elements of the installation, such as: LNBs, DVB-T preamplifiers, multiswitches or other bus amplifiers (in the case of connecting power supply R71465)
- cast housing guaranteeing high level of shielding - class A
The use of SA-91L/91DL amplifiers allows for the construction of extensive multiswitch systems with up to several hundred outlets. Signal level control with switches ensures stability of parameters over time. The cast housing ensures high screening efficiency, which prevents the penetration of interfering signals inside the device.
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Specifications
| Product type | Amplifier for multiswitch system | ||
| Manufacturer | TERRA | ||
| Name | SA-91DL | ||
| Type of system | SMATV system | ||
| Bus type | 2 × quatro | ||
| Operating band | SAT | MHz | 950 – 2400 |
| Operating band | DVB-T/Radio | MHz | 47 – 790 |
| Gain | SAT | dB | 22 |
| Gain | DVB-T/Radio | dB | 22 |
| Gain control | SAT | dB | 0...-15, step 1 |
| Gain control | DVB-T/Radio | dB | 0...-15, step 1 |
| Correction for cable attenuation pattern | SAT | dB | 0/3/5/7 |
| Correction for cable attenuation pattern | DVB-T/Radio | dB | 0/6/12/18 |
| Separation | SAT | dB | 30 |
| Separation | DVB-T/Radio | dB | 30 |
| Inner noise | dB | < 9 | |
| Max. signal level of terrestrial TV (IMD3=60 dB) | dBµV | 109 | |
| Max. SAT signal level (IMD3=35 dB) | dBµV | 114 | |
| Power supply for other devices | sig. track V | V/A | 14/0.5 |
| Power supply for other devices | sig. track H | V/A | 18/2 |
| terrestrial TV path | V/A | 12/0.1 | |
| Screening efficiency class | A | ||
| DC transition in signal path H | A | max. 2 (max. 1 A for 1 line) | |
| Power supply | voltage | DCV | 9...18 |
| Power consumption | W | 5 (H lines) | |
| Operating temperature range | °C | -20...+50 | |
| Dimensions | mm | 255 × 135 × 32 | |
| Weight | kg | 0.9 | |
Videos
Designing antenna systems with the use of free software from TERRA - SatNet application. The program allows to prepare the project in graphical form, to determine signal levels in all outlets and verify if they are compliant with standards, and to decide whether to use equalization function of the amplifiers. The program enables the user to archive the designs.
