[BC] Padding down a sat receiver input

[Ronald J. Dot'o Sr.]

We tried inserting F-fitting coaxial pads in a sat coax and they 
heated up and reduced the lnb voltage and generally messed things up. 
We finally used the current passing side of several 2 way splitters of 
the correct frequency rating in series to induce the required loss.  I 
think the loss was around 2 to 4 db per splitter but I could  be 
wrong, it was a while ago.

I don't know the answer to your db question but 3 db is 50% loss/100% 
gain for power and 6 db is 50% loss/100% gain for voltage.

I was told by ABC tech support that they were plugging for a reading 
of 10 on the EB reading and that a reading of 15 makes things break up 
on their xds receiver.  I don't know how that translates to your 
situation.

Ron D

From: "radioranger" <radioranger at comcast.net>

>I just installed a new satellite receiver from Dial Global.  They 
>recommend
> that the signal level not exceed 60 on the front panel meter, and 
> I'm
> getting a reading of 70.  The EbNo figure is 11.5.
>
> Here's my question--- if you use a standard 75 ohm F connector 
> attenuator
> pad to reduce the incoming signal do the resistors in the pad also 
> change
> the DC voltage level going to the LNB?
>
> Do any of you know how the signal strength numbers relate to 
> decibels?  In
> other words, does a 3 db pad change the signal strength meter by 
> some linear
> amount?
>
> Thanks for your help.
>
> Steve Brown