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To make installers work easier, Televes provides a free programming software for Avant3, downloadable at www.televes.com. In order to use this software you need: A PC (with Windows XP or higher) equipped with a COM or USB port. An RS232-to-RJ45 connection cable (for COM port), and, in case you wish to connect via USB instead of the COM port, an adapter (Ref. 5838). The program automatically detects the port that is being used, which allows for an intuitive and quick installation, as well as an easy programming. Among other things, you will be able to: Store as many configurations as you wish on your PC, modify inputs' configuration, modify each filter's aperture, etc. The software is valid for any 5326 unit manufactured after January 2010.
Modulators - either the modulators that generate a channel from audio/video or those built-in inside the TV SAT receivers - produce interfering signals that may impact other channels in the band. There are three types of signals: Trace of the audio carrier. Local oscillator used in RF channel generation. Upper sideband. The use of a single-channel amplifier prevents the impact of this interference, provided the amplifier is not working at maximum output voltage. To prevent the effects of these signals, it is recommended to adjust each amplifier to a voltage 4 dBµV below the maximum output voltage.
To allow a control signal to pass through, you can use a bridge built with voltage injectors (ref. 7450). By connecting the power cords of two injectors, you allow the signals to pass between receiver and LNB.
Very often, when you are receiving signals in coastal zones, there are important variations in the level or the power of the signals that reach the amplification headend. In that situation, a conventional amplifier would be constantly adjusting the output level. This could cause the amplifier to reach saturation (due to excessive output level), or an output signal level that is not appropriate to maintain the minimum operating levels in the network. The automatic gain control comes in to solve this issue and maintain a fixed output level in the amplifier, regardless of the input values (AGC usually supports +/- 15 dB variations).
The solution lies in the power supply. The equipment with ref.5796 has to be connected to the amplifier, and its output to the receiver. When the emitter detects a voltage from the receiver, the voltage delivered to the input cable corresponds to the voltage in the receiver. In this way, the amplifier will be always powered and the LNB will always have the appropriate polarization. It is important that the amplifier is able to work with any voltage between 12 V and 24 V, which is the case for all the products in the 561601 range.
There are several options, depending on the desired output level. If the installation concerned is individual and inside a home, references 5530 and 560601 are applicable.
The DIN 45004 standard specifies the measuring procedure to assess the maximum output level of a single-channel amplifier. At that point, the amplifier will be generating distortion: the higher the output level goes beyond the maximum output level, the higher the distortion. However, a single-channel amplifier is always part of a headend, where outputs are combined to produce a single output. In case Z self-mixing is applied, the following factors have an impact on the headend's final level: Through losses at the amplifier's output loops. Through losses at the bridge used to connect the different modules. The contribution of these two losses may reach 1 dB approximately. That is why the output level is actually lower than the one specified in the catalogue.
The Cable Equalizer allows to match the signal levels to be amplified at the internal stage of a broadband amplifier, thus preventing intermodulation at that stage. The Pre-equalizer generates an unbalance between high-frequency and low-frequency signals to compensate for the losses in the distribution network.
The multiband amplifier has a rear switch to configure the power supply to Local or Remote mode. In Local mode, the multiband amplifier generates 12 VDC on its IF input. In Remote mode, the multiband amplifier configures a bridge between IF input and output , so that the voltage entering the output is available at the IF input.
The multiband amplifier has a rear switch to configure the power supply to Local or Remote mode. In Local mode, the multiband amplifier generates 12 VDC on its IF input. In Remote mode, the multiband amplifier configures a bridge between IF input and output , so that the voltage entering the output is available at the IF input.
Outdoors devices suffer from the constant action of environmental factors on their wear, which makes necessary more rigorous resistance and safety requirements. The use of PE sheath cables, chassis with a high protection index (IP) or enclosures to protect connections are examples of the most recurrent methods to ensure the protection of these installations.
Despite these preventions, there may be scenarios where the connection cable between the antenna and the amplifer works as a rain gutter and results in a fltration of the water inside the device through the input connector, thus causing a serious breakdown. To avoid it, it is recommended to always make a "kink" in the coaxiai cable before connecting to the device. This torsion with the form of a coil or loop will drip any liquid that may slide down the coaxial cable, before it reaches the equipment. A very simple solution that will save expensive repairs in the future.
