Where to put inline amlifier

[FaT Air]

Many different answers to different scenarios, the symptoms are really unknown here.
But here's a stab at some probable symptoms:
With the receiver close to the dish it receives the channels desired and at the other end of the long coax run they are not coming in, an amplifier may help.
If you can't receive the channels desired when the receiver is connected to the dish/switch/lnbf's with a short coax, an amplifier will not help. Only a bigger dish will help in this instance.
A 50 meter run of good quality coax should not require the use of an amplifier. I would venture to say that there's excessive loss in your switch. (good RG6 at that length would not have excessive loss) Test by bypassing the switch. If that's it, replace with a better switch.
If most satellites perform well presently but one is problematic, think a separate larger fixed dish is the answer.

[momi]

Where are you located and what satellites are you trying to receive?

Why do you feel that your system needs online amplifiers?

Personally, I would first purchase a quality amplified switch and possibly consider upgrading the coax to a quad shield RG6. 50M is not that long of cable run and will not likely benefit from inline amps.

The dish looks to be of good quality, but be aware that the performance of this design is lower than a similar sized dish designed for single satellite reception. It is a neat idea, but with reduced performance.

Which switch do you recommend?

I am in Bosnia, and I am aiming for ASTRA satellite's on 19.2 E, EUTELSAT on 16.0 E, HOT BIRD 13.0 E and ARABSAT on 20.0E for the begining.

[momi]

I have just double checked and my cable is 2YCFGY. How this cable compares with RG6?

[lost_mesa]

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I Googled 2YCFGY coax and found a loss of 27 db per 100 meters at 850 MHz. It didn't list the loss at higher frequencies, but the loss will be much higher in the 950 to 2150 MHz range that you are using.



This loss is higher than even RG59. At 850 MHz RG59 is about 25 db per 100 meters and RG6 is about 20 db.

Can you move your receiver to the dish and test it there with a short piece of RG6 cable? If that works OK, then better cable is probably your answer.