Welk type LNB is dit ?

[tracker]

Weet iemand wat voor type LNB dit is?

 

Marconi type B.Solo.

Op de achterkant staat groot 2 GHz.

 

Is dit een universal lnb?

 

<img src="/ubbthreads/images/graemlins/confused.gif" alt="" />

 

[rudolfdebeer]

S-band???

Goed voor afrikaanse radiostations??

 

Rudolf.

[acid]

Dat is een 2 ghz lnb die was toen de tijd nodig om de astra 1 D op de 19,2 oost te pakken .

In die tijd zo'n 10 jaar terug was de band in de low band nog 10.950 tot 11.800 ghz ,en met die 1 D lnb had je ook de lagere frequenties van de toen nieuwe astra 1 D .

Die lage band begon op 10.700 tot 11.800 , want toen de tijd was rtl 5 en filmnet the complete movie channel in die lage band .

 

[tracker]

Acid,

 

Bedankt. Ik had al na veel proberen het idee gekregen dat de LNB alleen in het lage gedeelte van de ontvangstband werkte.

Hij is dus onbruikbaar voor het nederlandse digitale pakket. <img src="/ubbthreads/images/graemlins/xyxthumbs.gif" alt="" />

[rudolfdebeer]

Kijk ik van op, vanwege het volgende:

Greetz,

Rudolf

 

A Ku Band Universal LNB, is capable of reception in both – the Ku Band Low (10.7 to 11.7 Ghz) & the Ku band High (11.7 to 12.75 Ghz). For the Ku Band Low, it uses a LO (Local Oscillator) frequency of 9.75 Ghz. For the Ku band high, it uses a LO frequency of 10.6 Ghz. Earlier versions of Ku Band LNBs split the 10.7 to 12.75 Ghz into 3 separate bands, requiring 3 separate LNBs, to cover the entire Ku band! Of course only one of the 3 was purchased & mounted on the dish, depending on the Ku Band frequency of interest. The Universal Ku band LNB elegantly provided reception over the entire Ku band, from a single LNB. All LNBs utilize the “Heterodyne” principle to lower the received Satellite Reception frequency (S, C, or Ku Bands) to the range of 950Mhz to 2050 MHz that can be received by all – Analog & digital satellite receivers. The incoming signal (S, C or Ku Band) is made to beat (clash) with a fixed frequency, generated locally within the LNB, by a Local Oscillator. The output is the sum & difference of the I/p & the LO. The sum of the frequencies will be produced at a much higher frequency & is discarded. The Local Oscillator frequency is chosen so that the Difference of the i/p and the LO freq. Lies in the frequency band of 950 Mhz to 2050 Mhz. All C Band LNBs that operate upto 4.2 Ghz (eg 3.4 Ghz to 4.2 Ghz), including Extended C Band LNBs, use a LO freq. Of 5150 Mhz. Where the LNB is used for reception of 4.2 Ghz to 4.8 Ghz, an LO freq. Of 5.95 Ghz is typically used. However, such LNBs are rare, and no “standard” LO freq. really exists for these LNBs. S Band LNB usually are designed for reception from 2.5 Ghz to 2.7 Ghz. They use a LO freq. of 3.65 Ghz (Note: 1 Ghz = 1000 Mhz Hence 3.65 Ghz = 3650 Mhz).