How to use DiSEqC with DVBlast the right way

If you are here you probably know what DiSEqC. If you don’t lets take an overview.

What is DiSEqC? The word stands for Digital Satellite Equipment Control and with it you are able to select which satellite to lock when selecting a frequency. Using DVBlast and boards like TBS, you are able to expand your control through at least 8 satellites using the right equipment.

I normally use the EMP – Centauri brand, which are cheap and have a lot of options. Always go for the Professional line, they have support for both QUAD and QUATTRO LNBS. The options can go from DiSEqC 1.0 (4 satellites) and (DiSEqC 1.1) for 16 satellites, although I don’t know any brand that makes Multiswitches >8.

For example, this product enables 8 tuners, DTV, and 3 LNBs.

EMP Centauri 13/8

Now all you need to look for in DVBlast is the following:

~$ dvblast -h
 -S --diseqc satellite number for diseqc (0: no diseqc, 1-4, A or B) 
-k --uncommitted port number for uncommitted diseqc (0: no uncommitted diseqc, 1-4) 

By using these options you can work out which satellite you want to use.

Examples:

dvblast ... -S 1 -k 1 (select 1st LNB/SAT)
dvblast ... -S 2 -k 2 (select 6th LNB/SAT)
dvblast ... -S 4 -k 2 (select 8th LNB/SAT)
...
dvblast .... -S 4 -k 4 (select 16th LNB/SAT)

You will see logs like this:

 debug: configuring LNB to v=13 p=0 satnum=4 uncommitted=2

Hope it helps.

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