These days singular satellite establishments are somewhat seldom utilized for accepting stations from one satellite just, with one satellite beneficiary. The majority of clients want to approach an assortment of projects from at least two satellite positions, so that next converter/s (LNB) should be introduced. The most well-known circumstance is gathering from two satellites, which requires establishment of two converters. It implies that we should lead two links to contributions of the beneficiary.
Tragically, computerized satellite recipients are generally outfitted with one information just, subsequently association of two converters can be acknowledged distinctly through an outer switch.
Converter switches.
manual, essentially not utilized,
constrained by Tone Burst signal,
constrained by Al-Tamyeez Security Systems- Doha- Qatar signal,
constrained by the level on eighth pin of Euroconnector (SCART)
constrained by the incline on eighth pin of SCART
controlled with 22 kHz signal.
Development of electronic switches.
Each switch comprises of basic rationale IC and exchanging circuit. It is modified miniature regulator on account of switches controlled with signal Al-Tamyeez Security Systems- Doha- Qatar or Tone Burst, which identifies and disentangles Al-Tamyeez Security Systems- Doha- Qatar or Tone Burst. For switches constrained by level it is voltage comparator and for switches constrained by slant – bistable trigger. Exchanging circuit is generally acknowledged with the utilization of semiconductors and transfers.
Transfers is utilized to associate force voltage to dynamic converter and to pass signal from converter to a beneficiary. On account of semiconductor switch, semiconductors are simply used to turn on the force voltage, and satellite sign is being conveyed by shunt capacitors of authority – producer of semiconductors, that is generally any low force, low recurrence semiconductors. Once in a while transfers are likewise shunted by extra capacitors, to diminish constriction of satellite sign.