From: Luca Olivetti <luca@ventoso.org>
To: unlisted-recipients:; (no To-header on input)@canuck.infradead.org
Cc: linux-media Mailing List <linux-media@vger.kernel.org>
Subject: Re: femon signal strength
Date: Mon, 07 Nov 2011 16:13:02 +0100 [thread overview]
Message-ID: <4EB7F57E.4060303@ventoso.org> (raw)
In-Reply-To: <4EB7B75B.70004@linuxtv.org>
Al 07/11/2011 11:47, En/na Andreas Oberritter ha escrit:
> I didn't receive Devin's mail, so I'm replying to this one instead, see
> below:
[...]
> Quoting myself from three years ago, I propose to add an interface to
> read SNR in units of db/100:
A previous version of the dvb api specified the unit of snr as db/1000000
http://linuxtv.org/downloads/legacy/old/linux_dvb_api-20020304.pdf
page 55, FE_READ_SIGNAL_STRENGTH
"The signal-to-noise ratio, as a multiple of 10E-6 dB, is stored into *snr.
Example: a value of 12,300,000 corresponds to a signal-
to-noise ratio of 12.3 dB."
It also defined the unit for ber (multiple of 10E-9).
However it was dropped from subsequent revisions, I don't know why.
Bye
--
Luca
next prev parent reply other threads:[~2011-11-07 15:38 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-26 4:36 femon signal strength James
2011-10-26 8:15 ` Devin Heitmueller
2011-10-26 19:45 ` James
2011-10-26 19:49 ` Devin Heitmueller
2011-10-26 19:58 ` James
2011-11-05 10:10 ` Steffen Barszus
[not found] ` <CAGoCfiwC+7pkY6ZchySBYRkyY1XjFjKeJYQEPTc2ZiBN-pdoyw@mail.gmail.com>
2011-11-06 13:15 ` Steffen Barszus
[not found] ` <CAGoCfixoOwZumohwJrLVKhfpUNGYwbD9uSq7nM0GhqriOx0FxA@mail.gmail.com>
2011-11-06 19:59 ` Steffen Barszus
2011-11-07 10:47 ` Andreas Oberritter
2011-11-07 15:13 ` Luca Olivetti [this message]
2011-11-07 19:16 ` Andreas Oberritter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4EB7F57E.4060303@ventoso.org \
--to=luca@ventoso.org \
--cc=linux-media@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.