neufuse
join:2006-12-06
Indiana, PA
 ·Comcast
| Do I need an amp?
I'm hoping not... the house I bought had an amp on the line, but the drop signal is high already... here is my setup.....
Drop to 3 way balanced splitter.... 1 to eMTA 1 to SB6120 and 1 to the amp... the amp is +15db... the power at the cable modem off the 3 way right now is +7db...
the amp then goes into an 8way splitter... on our SA 4250HDC (think thats the model) box it is saying the power is +11 db for one but then on the other side of the info screen there is a +15db in orange (warrning color) for the digital recieve? i forget i need to have the box infront of me... i think the 8 way splitter is -10db per port (its an atronix 8way)... I think I dont need the amp... anyone else see any reason to keep it on the line? or just drop it? |
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nthach
join:2009-02-11 | I think a attenuator is in need, is the amp installed a 2-way amp? |
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joe40
join:2005-11-26
Danbury, CT | reply to neufuse
do you need a 8 way splitter?
if not then yes you can remove the amp |
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neufuse
join:2006-12-06
Indiana, PA
·Comcast
| yes, I have 8 lines going through the house...
but why would I need the amp if the signal is that high on the boxes after the amp? I thought closer to zero the better? if its +11db on the box wouldnt the amp be over amplifing the signal? because |
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neufuse
join:2006-12-06
Indiana, PA | reply to nthach
yes, 2 way amp... its a 1GHz amp also |
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joe40
join:2005-11-26
Danbury, CT
·Comcast
| reply to neufuse
said by neufuse  :yes, I have 8 lines going through the house... but why would I need the amp if the signal is that high on the boxes after the amp? I thought closer to zero the better? if its +11db on the box wouldnt the amp be over amplifing the signal? because if you have 15 at the cable box you can remove the amp.
but recheck the cable box signals you will be dropping by 15db
but a fear it may be more. |
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nthach
join:2009-02-11 | reply to neufuse
Pull the amp, check the signal afterwards. If they drop into negative territory by more than -3dB, I'd reinstall the amp and install a few attenuators on the boxes. |
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neufuse
join:2006-12-06
Indiana, PA | reply to neufuse
in the even the signal is lower then expected, where can I get a good attenuator? |
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beachintech
There's sand in my tool bag
Premium
join:2008-01-06
The Beach,US
clubs:
·Mediacom
| said by neufuse :in the even the signal is lower then expected, where can I get a good attenuator? attenuator would make the signal even worse  Take the amp out. You should be fine.
--
Tech at the Beach. |
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neufuse
join:2006-12-06
Indiana, PA | I mean an antennuator after the amp not with no amp :P |
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neufuse
join:2006-12-06
Indiana, PA
·Comcast
1 edit | reply to neufuse
well took off the amp just to see what signals I get after the 8way amp... here it is
channel 2 0db
channel 47 0db
channel 111 -2db
channel 120 -4db
so looks pretty good, no idea why they had an amp on with signals like that without it |
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