[mythtv-users] Best place to insert a CATV amp

Boleslaw Ciesielski bolek-mythtv at curl.com
Fri Jan 26 21:54:53 UTC 2007

Brian Wood wrote:
> Without a signal level meter you really have no idea what the levels  
> of the incoming channels are, and those are expensive items not owned  
> by most consumers

A lot of cable modems have some kind of signal level meter built-in. On 
my Motorola SB-4200 it is accessible via

It displays power level in dBmV and SNR in dB. On broadbandreports.com 
one can find out that cable modems want something like between -15 and 
+15 dBmV (ideally -10 to +10). Is there a similar range for TVs? My 
understanding is that TVs require stronger signal than cable modems? If 
so, one could measure the signal by connecting the cable modem in 
various places...


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