From: Steven Toth <stoth@linuxtv.org>
To: Antti Palosaari <crope@iki.fi>
Cc: linux-dvb <linux-dvb@linuxtv.org>
Subject: Re: [linux-dvb] A/V sync issues with DVB-S
Date: Wed, 20 Aug 2008 10:07:35 -0400 [thread overview]
Message-ID: <48AC2527.1090209@linuxtv.org> (raw)
In-Reply-To: <48AC1087.2010503@iki.fi>
Antti Palosaari wrote:
> Thomas Börkel wrote:
>> hermann pitton wrote:
>> Measuring the strength and SNR is not so easy now. My SAT receiver
>> always says strength 70% and SNR 80%. My new Nova S Plus cards always
>> report strength 97% and SNR 99%. Only my TT 1500s reported reasonable
>> numbers like strength 63-80% and SNR 75-90%.
>
> What is the recommended way to report signal strength or SNR by the
> driver? Both of those are 16bit unsigned value. Is it better to scale
> 0-0xffff or return as decibels? If SNR is reported as decibels it will
> look like very small value...
>
> Antti
May of the drivers I've added recently report their values in db, but I
typically also have one precision point. So I report 20.4 as 204 decimal.
- Steve
_______________________________________________
linux-dvb mailing list
linux-dvb@linuxtv.org
http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
next prev parent reply other threads:[~2008-08-20 14:08 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-18 5:13 [linux-dvb] A/V sync issues with DVB-S Thomas Börkel
2008-08-19 2:31 ` hermann pitton
2008-08-20 4:52 ` Thomas Börkel
2008-08-20 12:39 ` Antti Palosaari
2008-08-20 14:07 ` Steven Toth [this message]
2008-08-20 23:40 ` hermann pitton
2008-08-21 9:59 ` Simon Kenyon
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=48AC2527.1090209@linuxtv.org \
--to=stoth@linuxtv.org \
--cc=crope@iki.fi \
--cc=linux-dvb@linuxtv.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox