Calculator for minimal required C/N

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PE5PVB
Posts: 161
Joined: Sun Sep 02, 2012 6:51 pm

Calculator for minimal required C/N

Post by PE5PVB » Sun Sep 11, 2022 11:31 am

Is there a calculator to calculate the minimum required C/N for certain DVB parameters?
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G4EWJ
Posts: 1456
Joined: Wed Feb 17, 2010 10:11 am

Re: Calculator for minimal required C/N

Post by G4EWJ » Sun Sep 11, 2022 2:58 pm

I don't know exactly how it's calculated, but here's a list.

Brian
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PE5PVB
Posts: 161
Joined: Sun Sep 02, 2012 6:51 pm

Re: Calculator for minimal required C/N

Post by PE5PVB » Sun Sep 11, 2022 3:25 pm

Looks like this list is for DVB-S2. Also a list available for DVB-S?
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G8GKQ
Site Admin
Posts: 2928
Joined: Sun Mar 22, 2009 1:21 pm

Re: Calculator for minimal required C/N

Post by G8GKQ » Sun Sep 11, 2022 4:08 pm

Hi

The values for DVB-S are approximately:

FEC 1/2: 1.7dB
FEC 2/3: 3.3dB
FEC 3/4: 4.2dB
FEC 5/6: 5.1dB
FEC 6/7: 5.5dB
FEC 7/8: 5.8dB

Dave, G8GKQ
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PE5PVB
Posts: 161
Joined: Sun Sep 02, 2012 6:51 pm

Re: Calculator for minimal required C/N

Post by PE5PVB » Sun Sep 11, 2022 5:03 pm

Thanks
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