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Originally Posted by verder
With a Tablo, the support folks apparently can log in remotely and check signals reported by the device itself. Unfortunately, this signal information is not exposed to end users.
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Yes, unfortunate. If it had a GUI that gave that information, more peole would buy it.
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I asked if it were possible to give me access to the insides and let me know what I need to target for signal levels. I doubt they'll go for it, but it never hurts to ask.
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Indeed.
To give you a feeling for signal levels, here is your report in dBm:
https://www.rabbitears.info/searchma...143302&opkey=C
And these are the specs by ATSC:
ATSC Recommended Practice:
Receiver Performance Guidelines
Document A/74:2010, 7 April 2010
RECEIVER PERFORMANCE GUIDELINES
5.1 Sensitivity
A DTV receiver should achieve a bit error rate in the transport stream of no worse than 3x10E-6 (i.e., the FCC Advisory Committee on Advanced Television Service, ACATS, Threshold of Visibility, TOV) for input RF signal levels directly to the tuner from
–83 dBm (-34 dBmV) to
–5 dBm (+44 dBmV)for both the VHF and UHF bands.
5.2 Multi-Signal Overload
The DTV receiver should accommodate more than one undesired, high-level, NSTC or DTV signal at its input, received from transmission facilities that are in close proximity to one another. For purposes of this guideline, it should be assumed that multiple signals, each approaching
–8 dBm (+41 dBmV), will exist at the input of the receiver.
Presumably for Two Strong Input Signals.
Max Signal Input and Output
would need to be DERATED:
3 Signals: -3.6 dB
4 Signals: -5 dB
5 Signals: -6 dB
6 Signals: -7 dB
8 Signals: -8 dB
Ignore signals more than 6 dB below the Strongest.
So, you see that -22 dBm for WDAY even before adding the antenna gain is getting close to -8 dBm, which is why Tablo support was concerned.
Majortom and 905shmich have worked out a way to get more info from the HDHR GUI using Linux, but I'm satisfied with what it gives me already.
The DHC forum software has changed; new link for that post:
https://www.digitalhome.ca/threads/h...4/post-2478858
The signal strength never goes above 0 dBmV, no matter how strong it is, the Signal Quality never goes below 41, and the SNR never goes above 33.
I assume the same thing could be done with the Tablo.