expert advice how to set up multifeed dish

[samoloko]

I have

pf sat dish with single LNB and TD88 dish with four twin Inverto Ultra Black LNBs

I would like to know what Spaun diseqc switches I have to buy to get signals from
- pf dish and all port 1 of TD88 LNBs to DM7020HD 2 x DVB S2 and
- all port 2 of TD88 LNBs to my old 1 tuner dreambox DM5620

I am not sure what to chose 2 x SUR or 2 x SAR - each diseqc to connect to one receiver

 

[Huevos]

To go above 4:1 your cheapest option is an 8:1 or 16:1 from EMP Profiline.

If you want to use Spaun to get 5 LNBs into 1 down cable you can either use 2x SUR (set up as mode 1 and 3), or 1x SUR and 1x SAR (or a cheap 1.0 alternative).

 

[samoloko]

thank you for reply

I would like to have 4:1 In 2 rooms from 4 twin lnbs
the pf lnb would be only connected to one dvb s2 tuner of DM7020HD the other tuner of which goes to diseqc switch

I have not worked with switches that Is why I do not know which switch 4:1 to use SAR or SUR
I guess that I need SAR 4:1 connecting all LNB port 1 to one receiver and SAR 4:1 connecting all LNB port2 to other box

 

[Huevos]

Well if you just need 4:1 you could use either the SUR or the SAR, but the cheap option is any DiSEqC 1.0 switch (Spaun ones aren't so cheap).

 

[samoloko]

Huevos

so I need two 4:1 simple switches which will work Independent with 4 twin Inverto Black Ultra LNBs
I would like to use SAR411 because of quality - I need switch with min signal losses
are there any good alternative for 4:1 switches to Spaun In terms of signal losses

 

[Robbo]

Generally the signal loss through diseqc switches is unimportant, unless the cable run is very long, or particularly lossy. What cable runs do you have? A 10m length of decent RG6 type will lose 3dB or so on its own.

 

[samoloko]

I use _http://uk.farnell.com/image/610073-100m-black/cable-coax-cx125-black-100m/dp/4317579

I am only worried If this cable Is proper for outside installations as It Is pvc
also twin LNBs are two Independent single LNB right ?

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[Robbo]

How long is the run? and yes a twin Lnb needs two runs.


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[Huevos]

also twin LNBs are two Independent single LNB right ?

Yes. In your case 4x Black Ultra twin, and 2x DiSEqC 1.0 switch.

 

[samoloko]

How long is the run? and yes a twin Lnb needs two runs.

20 m max dish to receiver
I think to mount diseqc switches on the mount at the back of the dish

thank you Huevos and Robbo for support