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Reply
nyt
Copper Contributor
nyt
Posts: 37
Registered: ‎05-18-2009
Device: LG Envy2
Plan: 20/20
Location: Long Island
0 Kudos

What is the optimal db signal strength?

I noticed that in the set box diagnostics you can check your signal strengh db.  Can someone tell me what is optimal.  Mine says good as is about 26-28db.

 

Thanks

Gold Contributor III
Keyboards
Posts: 2,299
Registered: ‎08-05-2008
Plan: Extreme HD DV /50/25
Location: SE Pennsylvania
0 Kudos

Re: What is the optimal db signal strength?

Your numbers are what is expected for a normal test from the STB.

If a forum member gives an answer you like, give them the Kudos they deserve. If a member gives you the answer to your question, mark the answer as Accepted Solution so others can see the solution to the problem.
Copper Contributor
Tommy76
Posts: 19
Registered: ‎12-11-2009
Location: Massapequa
0 Kudos

Re: What is the optimal db signal strength?

mine are always at 20 and sometimes even 19...is this normal also?

Gold Contributor III
Keyboards
Posts: 2,299
Registered: ‎08-05-2008
Plan: Extreme HD DV /50/25
Location: SE Pennsylvania
0 Kudos

Re: What is the optimal db signal strength?

20 dB is what my 2 2500's show and 24 to 26 for the 7216 DVR.  Haven't seen any problems with any at those signal levels.

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Copper Contributor
ComaTech
Posts: 20
Registered: ‎01-08-2010
Location: Utah
0 Kudos

Re: What is the optimal db signal strength?

To properly check whats called
your, SNR number, you'll need to follow these steps

The OPTIMAL Inband SNR number is 36+

OOB Snr is best above 26+

 

The SNR number, is the signal strength to the box.
First turn the STB (set top box) on.
Second, on the front of the box, there are a bunch of buttons, you'll
need to push the Power button once, and the select button twice.  Not
holding any of the buttons, but kind of fast when you push them.
This will get the box into the diagnostics mode.  If it says general
status, you went to far, just push the left arrow to get you to the
selection screen.
Now that you are into Diagnostics, just use the arrows on the front of
the box, or the remote, and cruise on down to D04 if you are on an HD
box, or 03 if you are on a Standard Def box.  Now push Select.
On this screen, near the bottom, you'll see your SNR Number, it should
be somewhere above 35, for all channels to work.  If it is below 35,
try reseating the coax cable on the back of the box, and if that
doesn't get it up, try reseating the coax cable on the wall.  If it
still doesn't improve, try the box in another room, if its still below
35, its the box.
If its above 35 in the other room, its the cabling in the first room.
Try replacing the coax in that case, if still not above 35, call
verizon tech support, they will need to send out a tech to check the
inside wiring and the splitter at the ONT

Gold Contributor III
Keyboards
Posts: 2,299
Registered: ‎08-05-2008
Plan: Extreme HD DV /50/25
Location: SE Pennsylvania

Re: What is the optimal db signal strength?

 


ComaTech wrote:

The SNR number, is the signal strength to the box.


 

 

I really wish that people would not spread incorrect information.  SNR is a quality measure (Signat to Noise Ratio) not a signal level measure.  It is strictly the measure of how much above the background RF noise (present on all signals) the wanted signal is.  One can have a strong signal and a poor SNR if there is a lot of noise and conversely one can have a good SNR with a weak signal is there is little noise.

 

Signal levels are typically specified as dBmV or dBm in controlled impedance systems.

 

Sorry for getting technical, but it is one of my pet peeves when wrong technical information is espoused as truth:smileymad:

If a forum member gives an answer you like, give them the Kudos they deserve. If a member gives you the answer to your question, mark the answer as Accepted Solution so others can see the solution to the problem.
Copper Contributor
Tommy76
Posts: 19
Registered: ‎12-11-2009
Location: Massapequa
0 Kudos

Re: What is the optimal db signal strength?

is 20db good for the 7xxxx multiroom dvr box though?....its always at 20db and sometime as low as 18 but mostly 20 all the time....and I have had nothing but problems since I got fios tv but they tell me everything looks fine

 

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