Assessments - 2, GPA: 4.5
(
)
)
|
Facilidade de uso
MSK 200. You can adjust the gain in 1-dB increments (see picture on right). The attenuator affects all Sat-range amplifier units at the same time. To equalise attenuation slopes, such as in long cable lengths, the amplifier’s pre-equalisation can be set to 2, 4 and 6 dB. The terrestrial amplifier is adjusted with its own attenuator. Connection of the amplifier to other units of the Sat reception system The easiest and quickest way to connect the amplifier to, e.g. a EXR 2558/EXR 2998 multi-switch is by using the optional connector EMU 250 (see picture on right) or the EMU 290 as is required for the VWS 2991. This enables the units to be connected to each other directly. If the units are far apart, it is recommended to use high-quality coaxial cables (with very high screening values) e.g. LCD 111. If possible, use high-quality F- type connectors (see picture right) for “crimping” or compression connectors (see Kathrein catalogue “Satellite and terrestrial antenna products and systems”). When using coaxial cables, it is especially important to make sure that the inputs and outputs are correctly assigned to one another. The amplifier’s “V low” output must be connected to the multiswitch’s “V low” input, etc. 936.3445/-/3.4e If the required level ratios are observed, a maximum number of three amplifiers can be operated in a cascade. Amplifier voltage supply Kathrein amplifiers are equipped with an innovative powering concept. The amplifiers can be powered in two ways: 1. Through remote feeding via the coaxial cable of the “H low” connection on a terminal multi-switch 2. Through connection of the optional NCF 18 power supply unit to the “DC” socket (does not include powering of the feed system!) Potential equalisation For potential equalisation use an earthing wire with a cross section of at least 4 mm. The unit is to be earthed using the earthing screw provided on the unit. Each unit in the reception system must be earthed. System example (Symbolic representation) EMU 250 (optional) UAS 585 EMU 250 (optional) or Terrestrial antenna (Symbolic representation) 936.3445/-/4.4e/Technical data Internet: KATHREIN-Werke KG • Anton-Kathrein-Stra.e 1 - 3 • P.O. Box 10 04 44 • 83004 Rosenheim • GERMANY • Telephone +49 (0)8031 184-0 • Fax +49 (0)8031 184-306 Systeme de distribution FI Sat VWS 2551 20510045 Amplificateur repartiteur commutateur VWS 2991 multiple 20510021 Amplificateur repartiteur commutateur multiple VWS 2551 20510045 VWS 2991 20510021 Caracteristiques • Grande resistance des sections d’amplification a la surmodulation • Decouplage eleve entre les sections d’amplification • Grace a l’utilisation d’un etage de sortie GaAs, l’amplificateur terrestre convient pour l’application cable large bande • Regulateur d’attenuation reglable pas a pas (progression de 1 dB) pour la gamme Sat et terrestre (toutes les branches Sat sont reglees en meme temps) • Preaccentuation reglable pas a pas (2/4/6 dB) dans la gamme Sat (toutes les branches Sat...
Este manual também é adequado para os modelos :Avtousiliteli - VWS2551 (947.57 kb)