satellite amp

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happyjackseven

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#1
Hi everyone,

I have a Sky digibox installed in Spain and generally I am happy with it. However I am always seeking to improve and enjoy tinkering with it.

I am thinking of installing a satellite amp they claim a 17db improvement. Would this be a worthwhile exercise?

Cheers

Happyjackseven
 

rolfw

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#2
No, not unless you have an exceptionally long cable run. They are designed to counter cable/system loss, not weak original signal. All you will achieve is increase your signal noise.
 
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#4
It's easy to find out. Connect your Digibox to the LNB with NO LESS THAN 10 metres of cable. If there's an improvement at the worst time of day, then an amplifier in the correct position may help. If you cable is no more than 20m long then it's unlikely you'll see a difference. This presupposes that you are using the correct type of cable!

Martin
 
H

happyjackseven

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#5
Thanks Martin for the reply,

The cable run is less than 20 metres but I think that the cable is only single sheathed. Perhaps it would be worth my while changing it to double?

Happyjackseven
 

devonbrown

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#6
can someone of greater technical ability than me explain why there isn't a sat amp. different sky boxes have different amp qualities. I have a pace 2200 in Spain and it gets some channels whilst my Panny receives others.
 

Channel Hopper

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#7
There are satellite in line amplifiers, the most common in the UK produced by Global Communications, and there are many types

20 db, 16dB , slope equalised, power driven or with independent power supply, single or twin housings and so on

Its just that you will rarely see a worthwhile result on a normal domestic system unless your cable run is excessively long.

Thats really the only time that a line amplifier should be used
 

rolfw

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#8
With regard to the digiboxes, it is not differences in amplifiers, it is differences in sensitivity and tuner thresholds that make some better than others. There are more technically literate people than me on the forum who can probably explain the differences.
 

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#9
At this time of night anyway !
 
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#10
Originally posted by rolfw
With regard to the digiboxes, it is not differences in amplifiers, it is differences in sensitivity and tuner thresholds that make some better than others. There are more technically literate people than me on the forum who can probably explain the differences.
Actually, the problem lies with the lack of tuner s-e-l-e-c-t-i-v-i-t-y.
Basically, that relates to its ability to winkle out a weak signal while it is being swamped by a much stronger signal on a nearby frequency.

So an amplifier doesn't usually help as it simply makes the strong signal even stronger.
:rolleyes:
 

rolfw

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#11
T-h-a-n-k-y-o-u for explaining Martin. ;)
 
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