CORSO TECNICO ITALIA

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 Si e' concluso il corso tecnico in Italiano di cinque giorni sui temi di maggiore interesse .

Per chi non avesse potuto partecipare di seguito sono riportati i filmati di riferimento e la registrazione delle lezioni .

273 HOW TO ADD FAN ON PROFLINE RX  TRSrm Re "https://youtu.be/mDxgfVbINwg"

274 HOW TO CHANGE THE POWER SUPPLY ON A PROFLINE SAT RECEIVER TRSrm Re https://youtu.be/JMPdhp14ZOw

275 HOW TO CHANGE A FAN IN A PROFLINE RX SAT RECEIVER Re https://youtu.be/x5OqJkOH8Ic

276 COME RIPARARE I RICEVITORI SATELLITARI PROFLINE - PARTE 1 Lesson https://youtu.be/JyJdZiGbAmU

277 COME RIPARARE I RICEVITORI SATELLITARI PROFLINE - PARTE 2 Lesson https://youtu.be/po7mv_GgakQ

278 COME RIPARARE I RICEVITORI SATELLITARI PROFLINE - PARTE 3 Lesson https://youtu.be/5mbaajJbock

279 CORSO SULLE ANTENNE E COPERTURE - LEZIONE DEL MATTINO Lesson https://youtu.be/PGZUjWe_a1g

280 CORSO SULLE ANTENNE E COPERTURE - LEZIONE DEL POMERIGGIO Lesson https://youtu.be/V9o76KaaLT0

281 USO DELL' ANALIZZATORE DI SPETTRO E VNA - LEZIONE DEL MATTINO Lesson "https://youtu.be/Q63TGziDFCE"

282 USO DELL' ANALIZZATORE DI SPETTRO E VNA - LEZIONE DEL POMERIGGIO Lesson "https://youtu.be/E_HIWGnlr1M"

283 PROTEZIONE POSTAZIONI DA FULMINAZIONI DIRETTE ED INDIRETTE -  LEZIONE DEL MATTINO Lesson https://youtu.be/ScmhrhANaXI

284 PROTEZIONE POSTAZIONI DA FULMINAZIONI DIRETTE ED INDIRETTE -  LEZIONE DEL POMERIGGIO Lesson https://youtu.be/BFPN8s4xqHs


L'elenco completo dei 284 file video di tipo tecnico pubblicati su YouTube , possono essere richiesti lma.it

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WHY USE THE ONE PORT RETURN LOSS MEASUREMENT INSTEAD OF THE TWO PORT TRANSMISSION LOSS MEASUREMENT

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How to tune a Coaxial Filter     In Fig.1 is shown the connection between Spectrum Analyzer-Rhotector (VSWR Bridge ) and a Coaxial Filter:                                                             Fig. 1. Connections between the instruments.   With this kind of connection you can measure the Return Loss or the Standing Wave Ratio of the coaxial filter at port F (shown in Fig. 1), Table 1 reports the relationship between the R.L and the VSWR. Table 1. Return Loss and SWR.     The Coaxial Filter is tuned by rotating the four knobs named Lin, Lacc1, Lacc2 and Lout, as in Fig 2. Delta Meccanica provides a graduation and a table for  the first position where is better to start the tuning. Fig. 2. Tuning Kobs. Delta Meccanica provides a graduation and a table for  the first position where is better to start the tuning. Table 1 shows the settings on two commonly used models of Delta Meccanica Coaxial Filters.                                                            
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HOW TO REPAIR THE LNB POWER SUPPLY ON THE SAT RECEIVERS PROFLINE TRSrm

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  HOW TO REPAIR THE LNB POWER SUPPLY   ON THE SAT RECEIVERS PROFLINE TRSrm AT FIRST WE HAVE TO TELL THAT YOU THAT IF YOU HAVE THIS KIND OF FAILURE 99% OF THE TIME , DEPENDS FROM THE BAD WIRING OF THE EQUIPOTENTIAL GROUND   SYSTEM . THIS MEANS THAT BEFORE CHANGING THE RECEIVER , YOU HAVE TO CHECK TO HAVE THE GROUNDING KIT ON THE SAT INPUT CABLE POSSIBLY BEFORE COMING INTO THE SITE , CONNECTED TO A GOOD COMMON EQUIPOTENTIAL GROUND POINT AND THE CASE OF THE RECEIVER ALSO CONNECTED WITH HIS GROUNDING SCREW TO THE SAME POINT OR AT LEAST TO THE COMMON GRUNDING POINT OF THE RACK THAT HAS THEN TO BE CONNECTED TO THE GOOD COMMON EQUIPOTENTIAL GROUND POINT . OF COURSE ALSO THE DISH AND THE LNB HAS TO FOLLOW THE SAME PRINCIPLES . IF NOT , YOU WILL CONTINUE TO DESTROY THE RECEIVER WITH LIGHTNINGS AND YOU ARE LIABLE FOR THIS DAMAGE . …………………………………………………………………………………………………………… The Profline TRSrm receivers are the most common SAT receivers we used all around .There are two types : A)    
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HOW TO ADD A FAN OR TO CHANGE ONE IN THE PROFLINE TRSrm RECEIVERS OR TO CHANGE A POWER SUPPLY

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 At this links you can find how to ADD :   or how to CHANGE a fan : In both cases you have the possibility to drive the 12 V fan with 12 V or with 5V for lower fan speed ( and probably better life , like in the picture) . The connection of the fan at 12 V are shown in the first video . There is also of course the possibilty to mount a 5V fan and drive it drive the fan with 5V . Il the following video there is HOW TO CHANGE A POWER SUPPLY : Here you have the video how to translate the subtites in every language :  
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