LNBF C BAND

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Squom_Bok
Posts: 10
Joined: Sun Oct 07, 2018 9:15 am

Re: LNBF C BAND

Postby Squom_Bok » Sun Oct 07, 2018 9:32 am

will v7 HD receiver work with c band freq. 4.50 GHz to 4.80 GHz in higher range c band?

Marantz
Posts: 120
Joined: Thu Dec 28, 2017 5:36 pm

Re: LNBF C BAND

Postby Marantz » Sun Oct 07, 2018 1:29 pm

The receiver doesn't necessarily operate at 4.5 to 4.8 or 3.7 to 4.2 or 10 to 12 gigs , it receives an I.F. frequency band output from the LNBF and depending on the model its usually 950 to 1450 or up to 950 to 2000 mhz

Check the spec on the LNBF ,it will give you the input and output
some will work a little below and above the spec but it depends on the manufacturer
If you have several receivers look for the Sat lnbf input with the largest bandwidth so if you have 950 to 2000 that would give you about a 1000 MHz so if the lnbf starts at 3.7 theoretically you might make it to 4.7

Hope this helps a little

Squom_Bok
Posts: 10
Joined: Sun Oct 07, 2018 9:15 am

Re: LNBF C BAND

Postby Squom_Bok » Mon Oct 08, 2018 3:10 pm

Yes, very helpful, thank you. I will buy upper c band LNB and test, I think v7 box has preset LNB configuration for L.O. of upper c band LNB?

Marantz
Posts: 120
Joined: Thu Dec 28, 2017 5:36 pm

Re: LNBF C BAND

Postby Marantz » Tue Oct 09, 2018 12:47 am

V7 has several settings for the LO ,usually in North America 5150 is used ,you can change this but it will just change the frequency that is displayed .

Freesat V7 is Input Frequency Range 950MHZ-2150MHZ

So choose a lnbf input for the desired range on C band and make sure the output falls into the input range for the V7 (950 t0 2150 as noted on the official website )

the fact is the band of frequencies the lnbf puts out to the receiver will be received if the receiver has the same input bandwidth ,you can even program in a range for the LO in the ku band into the V7 and blind scan in a c band lnbf ,it will work but all the tp freqs will be wrong and any preset sat list will not work correctly .

The main thing is to get a LNBF that the input matches the frequency you want to receive and make sure the output matches your sat input freq range on your receiver

Marantz
Posts: 120
Joined: Thu Dec 28, 2017 5:36 pm

Re: LNBF C BAND

Postby Marantz » Tue Oct 09, 2018 1:54 am

Just looked
several 4.5 to 4.8 lnbf units on ebay , they aint cheap

Just for example off ebay ,not sure if it meets you own exact requirements

Norsat 5250I Specifications
Input Frequency 4.5 to 4.8 GHz
L.O. frequency 5.95 GHz
Output frequency 1150 to 1450 MHz

The output falls into the range of the receivers input 950 to 2150 and the V7 will accept the LO freq of 5950 ,i checked my V7

Nothing shown on lingsat for North America on these freqs
What do you what to watch?
just curious if you can say

Good luck

wwiilliiss
Posts: 46
Joined: Thu Sep 15, 2016 12:38 pm

Re: LNBF C BAND

Postby wwiilliiss » Tue Oct 09, 2018 11:06 am

Bangladesh TV has started on its own satellite 4660,,,11000
maybe what he wants to get

Need2learn
Posts: 11
Joined: Tue Feb 20, 2018 1:40 am

Re: LNBF C BAND

Postby Need2learn » Thu Nov 15, 2018 7:14 pm

Is there such thing as an LNBF circular ?

wwiilliiss
Posts: 46
Joined: Thu Sep 15, 2016 12:38 pm

Re: LNBF C BAND

Postby wwiilliiss » Sat Nov 17, 2018 4:17 am

Either use a fibreglass polarizer or a polarizer barrel

Jim
Posts: 145
Joined: Sat Oct 28, 2017 2:24 pm

Re: LNBF C BAND

Postby Jim » Sat Nov 17, 2018 2:13 pm

Need2learn wrote:Is there such thing as an LNBF circular ?


Yes Invacom QPH-031

Need2learn
Posts: 11
Joined: Tue Feb 20, 2018 1:40 am

Re: LNBF C BAND

Postby Need2learn » Wed Nov 21, 2018 12:11 am

Jim wrote:
Need2learn wrote:Is there such thing as an LNBF circular ?


Yes Invacom QPH-031



That is Ka band not C band circular

Jim
Posts: 145
Joined: Sat Oct 28, 2017 2:24 pm

Re: LNBF C BAND

Postby Jim » Wed Nov 21, 2018 12:29 am

Need2learn wrote:
Jim wrote:
Need2learn wrote:Is there such thing as an LNBF circular ?


Yes Invacom QPH-031



That is Ka band not C band circular

I have used that LNBF for years and it has nothing to do with Ka band? There are four ports 2-Circular and 2-Linear. which you can split with s Diseqc switch at the dish.

Jim
Posts: 145
Joined: Sat Oct 28, 2017 2:24 pm

Re: LNBF C BAND

Postby Jim » Wed Nov 21, 2018 9:11 pm

Jim wrote:
Need2learn wrote:
Jim wrote:
Need2learn wrote:Is there such thing as an LNBF circular ?


Yes Invacom QPH-031



That is Ka band not C band circular

I have used that LNBF for years and it has nothing to do with Ka band? There are four ports 2-Circular and 2-Linear ports. which you can split with a Diseqc switch at the dish.

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