BK Precision SEFRAM 7861 Скачать руководство пользователя страница 8

 

 

 

 

 

- 8 - 

 
 
 
 
For an installation of quality, follow the next reference values. Check that the measurements operated on the transponder correspond to 
them. 
 

 

Error ratios 

Measure

BER  

M

E
R
 
(
d
B

DVB-S 

VBER < 

2E-4 

>
 
1

 

 
4)

 

 TV display 

 
Caution : if you rely only on the picture, without taking the measures into account, you won’t have a correct system adjustment. 

 
 

Press the 

 key to display the transponder that corresponds to current measures.                  

 

 

 If, in TV mode, the screen remains black but the NIT appears in the top right-hand corner of the screen, it means that the transponder 
is  well  synchronised.  Nevertheless,  a  subscription  is  necessary  to  see  this  not    free  TV  program.  The  term  « Conditional  access » 
indicates that the program can’t appear. 
 

NIT – Conditional access 

 

 

 

A transponder contains many TV programs. To access to a channel that is broadcasting in clear on the transponder, press the sensitive 
key« Serv ». This button enables selecting the TV program to see. Choose a TV program with the direction keys and validate it with the 
green validation key in the sensitive menu. 

 
 
 

 

 

   TV program choice 

 

 

 

 

 

 

 TV window 

          

 

 
                                                                                                                                              

 
 
 
 
 

Different  application  notes  can  be  downloaded  on  our  website  ;  they  allow  understanding  more  in  details  some  functions  of  the  field 
strength meters (

http://www.sefram.com/wwwFR/F_download.asp

)

 

 

Product link 

http://www.sefram.com/wwwFR/F_quick_search.asp?st=7861

 

The  sign  « < »  before  an  error  ratio  value  shows  that  there  has  not  been  any  error  (for  example « <1E-8 »  indicates  an 
error rate less than

  

1E-8).

      

 

 

 

 

Transponder change 

(among those that are 

saved in the place) 

Program change 

(in the current 

transponder) 

Transponder 

NIT 

Содержание SEFRAM 7861

Страница 1: ...n system correctly with a universal LNB equipped satellite dish 1 Configuration Operating the instrument step by step Plug the LNB cable into the appliance Switch the field strength meter on by pressi...

Страница 2: ...tal vertical polarity high low band The Thresholds allow defining the limits for the level measurement Their setups have already been installed but it is possible to modify them reserved to advanced u...

Страница 3: ...lody beeps ring out The more they are closer the more the reception quality is good Perfect the adjustment of the satellite dish to obtain the best quality If the appliance is not synchronised on any...

Страница 4: ...um reception quality for a polarity without interference with the opposite polarity Observe the quality bargraph Adjust the head until you obtain a maximum quality Microwave head LNB Lightly turn the...

Страница 5: ...ingle transponder doesn t synchronise quality 0 it is possible that its frequency is not valid anymore in satellite the used frequencies are regularly modified Use the following sensitive keys to repl...

Страница 6: ...PEG2 NIT table The informations displayed at the acquisition end can be erroneous The following error messages can also appear Impossibility locking on the transponder Satellite identification failed...

Страница 7: ...reception quality Error rates To operate the error rate measurements Press for the second time the Measurements key A new window appears on the display DVB S BER MER DVB S BER MER window Analyse the m...

Страница 8: ...the program can t appear NIT Conditional access A transponder contains many TV programs To access to a channel that is broadcasting in clear on the transponder press the sensitive key Serv This button...

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