Re: Re: [patch] TT C-1200 USB wrong frequency

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On Wed, 2 May 2007, Thomas Kaiser wrote:
> Trent Piepho wrote:
> > driver		tuner	post-IF-offset low-mid band switch point
> > budget-ci           DVB-T   195 1/8 MHz (to two decimal places)
> > budget-ci           DVB-C   200 MHz     (this is the likely correct value)
> > ttusb-budget        DVB-T   195 1/8 MHz (to two decimal places)
> > ttusb-budget        DVB-C   236 1/8 MHz (this is clearly wrong)

I looked at the code again, and I mis-read the budget-ci DVB-C tuner, it
should have been:
budget-ci           DVB-T   195 1/8 MHz
budget-ci           DVB-C   160 MHz     (wrong!)
ttusb-budget        DVB-T   195 1/8 MHz
ttusb-budget        DVB-C   236 1/8 MHz (wrong?)

In other words, DVB-C was 160 MHz when it should have been near 200 MHz.

> Anyway, this
> http://linuxtv.org/hg/v4l-dvb?cmd=changeset;node=e7c424bbf9aa;style=gitweb
> change is wrong anyway and should be reverted.

You're right, reverting this change will make it go from 160 MHz to 200 MHz.

It still looks to me like the ttusb-budget driver has the bug in the DVB-C
td1316 tuner code, as it switches at 236.13 Mhz where as all the other td1316
code uses 195 ~ 200 MHZ as a switch point.

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