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From: Jyrki Niskala <jyrki.n@telia.com>
To: linux-dvb <linux-dvb@linuxtv.org>
Subject: Re: [linux-dvb] Can't get signal lock with Hauppauge Nova TD-500
Date: Sat, 20 Dec 2008 08:20:08 +0100	[thread overview]
Message-ID: <494C9CA8.6010500@telia.com> (raw)
In-Reply-To: <492D441D.1050108@telia.com>

Jyrki Niskala wrote:
> Hello
>
> I'm stucked here with a problem with a new Hauppauge card called Nova 
> TD-500.
> When tuning, I got lock on 4 of 5 muxes.  The fifth, non working mux, is 
> at 778 MHz.
> It's same behaviour on both tuners, with tzap or MythTV,  with or 
> without lna option.
> I have also tried with another computer with same result.
> The signal is not a problem. I have 3 other dvb-t cards up and running 
> for the moment...
> All muxes are from 538 MHz to 778 MHz (64 QAM, 8 MHz bandwith, 8k 
> transmission mode)
>
>   
Hi again,

For completeness and reference for others I need to close this issue.

By comparing usbsnoop logs from Windows driver with source code of the 
demod (dib7000p) I found out that the windows driver is using auto guard 
interval when tuning. My channel configurations,  tzap and MythTV, was 
using manual guard interval at 1/8.  After changing my configurations to 
use auto guard interval I got 5:th mux working.
Now the card is back in duty ...

Merry Christmas,

/ Jyrki


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      reply	other threads:[~2008-12-20  7:20 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-26 12:42 [linux-dvb] Can't get signal lock with Hauppauge Nova TD-500 Jyrki Niskala
2008-12-20  7:20 ` Jyrki Niskala [this message]

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