Wow, another major plus for TiVo. (This will only be important to a very small number of TiVo users in a situation like mine).
I use TiVo for OTA only.
Having antenna issues; too much to post here and I have posted a little bit of it in the antenna thread etc. Short story: Way too many trees make it difficult to get all the channels I want all the time.
For those of you who may be having trouble “tuning” in all your digital OTA stations like you want them then this could be beneficial to you.
Most of you are aware of the signal strength meter and in many or most cases that is all you need to get the stations you want. Also, most are aware that keeping the SNR high the more solid and reliable the signal will be. Using the “strength meter” and “SNR” together make tuning a little easier (under DVR Diagnostics).
Now this part you may not know: Also under DVR Diagnostics, signal data is accumulated for both tuners at the same time, even when the TiVo is turned off and not in use for very long periods of “time”. Essentially, it will report that data for two channels “forever” unless “a” tuner is needed to change for a recording. This means it can be quite easy to get the data for several hours for two channels at the same time. That is extremely important when the mere “signal strength” and “SNR” are not enough to solve antenna problems.
Weather Conditions, Sunny, Heavy Fog, Rain, and “Monster Trees flapping in the Wind” can easily affect OTA Digital reception. The DVR Diagnostics can help solve many of those problems. Here is what is recorded on those pages for two channels at the same time:
RS Uncorrected (signal so bad the TiVo tuner could not fix it)
RS Corrected (by the TiVo tuner)
Time – two of them, found and locked etc. Given in seconds (minutes would work better for me, but at least I can handle the math)
RS Uncorrected and Corrected is vital information well beyond what normal signal strength and SNR can do for you. I am aware that some Sony TV’s have similar “signal quality” information given as well, but only for one channel at a time. And I do not think it can retain that data for very long periods of time? Who is Reed Solomon anyway? Never mind.
If you have RS Uncorrected and Corrected at “0” you have absolute utopia, the signal cannot be any better. Over “time” this becomes harder and harder to do in the real world. The more “time” (hours) you maintain “0” and “0” the closer you will be to “ultimate utopia”. If the RS Uncorrected stays a “0” you should never see “any” picture defects (at least in regard to signal quality). Usually if RS Corrected (TiVo fixes) stays small and RS Uncorrected is “0” you will be a “very happy camper” – you will not see picture defects.
What this means is: you can make both large and very small “micro” adjustments (including tilt) to antenna positioning to yield major improvements in reception that signal strength and SNR data alone cannot provide. This is particularly true in extremely difficult OTA tuning environments.
RS Uncorrected and Corrected tells you what the TiVo tuner is doing with the signal it receives. This is a very close cousin to BER (Google it) a second cousin to MER. Both BER and MER is data you would like to have “at” the antenna but few of us can afford (money) the equipment necessary to get it.
One way to think about this DVR Diagnostic information is like a “poor mans” Digiair Pro ATSC. That product has already gone through three significant updates (complete changes) that I am aware of; so best I can tell this is the latest manual on the latest and current product:
Digiair Pro ATSC English
(sorry Win 8 sux big time) you have to go down the list here and find the manual)
Reading the manual can provide more information and/or a pathway to Google for more information.
Now here is one thing the DVR Diagnostic page cannot do for me. I cannot take the TiVo Box to the roof or in the attic, along with the TV Set. That is probably its greatest limitation. So of course I did the opposite, I put the antenna inside the house – no this is not final solution. It is still a project. LOLEdited by HoustonPerson - 5/30/13 at 5:41am