From: Antti Palosaari <crope@iki.fi>
To: Markus Rechberger <mrechberger@gmail.com>
Cc: Rune Evjen <rune.evjen@gmail.com>, linux-media@vger.kernel.org
Subject: Re: PCTV nanoStick T2 290e (Sony CXD2820R DVB-T/T2/C) - DVB-C channel scan in mythtv - missing
Date: Tue, 21 Jun 2011 00:10:50 +0300 [thread overview]
Message-ID: <4DFFB75A.8050808@iki.fi> (raw)
In-Reply-To: <BANLkTikDCbQUwW_mAdMHAxQGE0AGp+1ebQ@mail.gmail.com>
On 06/21/2011 12:04 AM, Markus Rechberger wrote:
> On Mon, Jun 20, 2011 at 10:55 PM, Rune Evjen<rune.evjen@gmail.com> wrote:
>> 2011/6/20 Markus Rechberger<mrechberger@gmail.com>:
>>> to tell the difference the amplifier is for DVB-T2, DVB-C is disabled
>>> in windows because it's not reliable.
>>> Technically the chip supports it but the LNA decreases the quality.
>>> There are already some other PCI boards
>>> out there with that chip which do not use that LNA which should have a
>>> better performance with that Sony chip.
>>
>> Is it possible to work around this by disabling the lna or is the
>> quality decreased permanently as part of the hardware design,
>> independently of whether the lna is enabled or not ?
>>
>> I searched the linux-media list and it seems that an lna option was
>> discussed as a module parameter, but modinfo for the module I use [1]
>> (using the media_build git repository) doesn't show a lna parameter.
>> Can the lna be disabled in another way ?
>>
>
> no, otherwise it would be sold as full hybrid device. DVB-T2 is weak
> that's why it was added.
> Failing DVB-C would increase the device return rate, that's why it is
> sold as DVB-T2 only.
How the others have resolved that problem? Is that signal strength only
issue when TDA18271 tuner is used?
Antti
--
http://palosaari.fi/
next prev parent reply other threads:[~2011-06-20 21:10 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-12 8:23 PCTV nanoStick T2 290e (Sony CXD2820R DVB-T/T2/C) - DVB-C channel scan in mythtv - missing Rune Evjen
2011-06-12 11:08 ` Antti Palosaari
2011-06-20 19:29 ` Rune Evjen
2011-06-20 19:55 ` Markus Rechberger
2011-06-20 20:55 ` Rune Evjen
2011-06-20 21:02 ` Antti Palosaari
2011-06-20 21:10 ` Markus Rechberger
2011-06-20 21:20 ` Rune Evjen
2011-06-20 21:25 ` Antti Palosaari
2011-06-20 21:29 ` Antti Palosaari
2011-06-20 23:00 ` Rune Evjen
2011-06-20 21:04 ` Markus Rechberger
2011-06-20 21:10 ` Antti Palosaari [this message]
2011-06-20 21:17 ` Markus Rechberger
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