View Full Version : question about inline signal amp
eshan
08-11-2011, 10:07 PM
hi
every one my dish is too too far from receiver my dish is on front of bulding and back of the building so probably almost 300ft so my question is currently my snr is 86% on sat 110w and 76% to 83% on sat91.w and 83%-96% on sat 119w so what should i use to boost the signal?
satchick
08-11-2011, 10:59 PM
If you're thinking of using one of those cheap inline signal amplifiers, don't waste your time/money. They do boost the signal, but they also amplify the noise, as well as add more noise to the signal. Proper drop amplifiers for satellite use are pretty expensive and are usually a special order item.
StanW
08-11-2011, 11:02 PM
hi
every one my dish is too too far from receiver my dish is on front of bulding and back of the building so probably almost 300ft so my question is currently my snr is 86% on sat 110w and 76% to 83% on sat91.w and 83%-96% on sat 119w so what should i use to boost the signal?
Snr as in S or Q ? If the levels listed are for Q they are pretty respectable .
Terryl
08-11-2011, 11:14 PM
Those levels should work fine as this is digital, if you have a picture and don't have problems don't mess with it.
You don't need every pico volt of RF signal like you did back it the old analog days, the new digital signals will work as low as 25% "Q", "S" will work at around 50%.
If you have 300 feet of coax you should have used RG-11.
If you are using the old style legacy LNB's and are looking at 91, 110 and 119 then I would recommend changing them to the band stacking LNB's like Dish uses, those type with the good RG-11 coax should work at that distance.
Also a DC powered switch can compensate for the switching voltage loss at the LNB if you have the old type legacy LNB's.
eshan
08-12-2011, 03:43 AM
Those levels should work fine as this is digital, if you have a picture and don't have problems don't mess with it.
You don't need every pico volt of RF signal like you did back it the old analog days, the new digital signals will work as low as 25% "Q", "S" will work at around 50%.
If you have 300 feet of coax you should have used RG-11.
If you are using the old style legacy LNB's and are looking at 91, 110 and 119 then I would recommend changing them to the band stacking LNB's like Dish uses, those type with the good RG-11 coax should work at that distance.
Also a DC powered switch can compensate for the switching voltage loss at the LNB if you have the old type legacy LNB's.
does the power switch will increase signal or not?
satchick
08-12-2011, 04:09 AM
does the power switch will increase signal or not?
No, but low signal isn't so much of a problem with good coax. The really big issue is voltage drop. The LNB uses DC voltage both to operate, and to switch polarity. A powered switch close to the dish will ensure that the LNB is getting a steady clean supply of DC power.
If this is your dish, you can also look into doing as Terryl suggested and converting to Dishpro LNBs and switches. With good coax it should have no problem going 300ft.
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