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From: Steven Toth <stoth@linuxtv.org>
To: Devin Heitmueller <devin.heitmueller@gmail.com>
Cc: Linux-dvb <linux-dvb@linuxtv.org>
Subject: Re: [linux-dvb] Revisiting the SNR/Strength issue
Date: Wed, 15 Oct 2008 10:30:24 -0400	[thread overview]
Message-ID: <48F5FE80.5010106@linuxtv.org> (raw)
In-Reply-To: <412bdbff0810150724h2ab46767ib7cfa52e3fdbc5fa@mail.gmail.com>

Devin Heitmueller wrote:
> I know that this has been brought up before, but would it be possible
> to revisit the issue with SNR and strength units of measure being
> inconsistent across frontends?
> 
> I know that we don't always know what the units of measure are for
> some frontends, but perhaps we could at least find a way to tell
> applications what the units are for those frontends where it is known?

The SNR units should be standardized into a single metric, something 
actually useful like ESNO or db. If that isn't available then we should 
aim to eyeball / manually calibrate impossible boards against known 
reliable demods on the same feed, it should be close enough.

This requires patience and time from the right people with the right 
hardware.

- Steve

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  reply	other threads:[~2008-10-15 14:31 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-15 14:24 [linux-dvb] Revisiting the SNR/Strength issue Devin Heitmueller
2008-10-15 14:30 ` Steven Toth [this message]
2008-10-15 14:40   ` Devin Heitmueller
2008-10-15 18:18     ` Steven Toth
2008-10-16 14:28       ` Devin Heitmueller
2008-10-17  9:40         ` Christophe Thommeret
2008-10-17  9:55       ` Andreas Oberritter
2008-10-17 13:31         ` Steven Toth
2008-10-17 14:12           ` Andreas Oberritter
2008-10-17 18:23             ` Steven Toth

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