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Re: [Discuss-gnuradio] Status of BTTV/CX88 capture

From: Hew How Chee
Subject: Re: [Discuss-gnuradio] Status of BTTV/CX88 capture
Date: Sat, 20 Aug 2005 00:05:49 -0700 (PDT)

Hi Martin,

Pretty good hacking you have done there. Maybe I'll
try it one day, after the warranty expires :) 

> I think I am going to look for a nice cx2388x
> capture card.
> What card are you using ?
> What tuner is on it? (Is it easy to hack?)

I am using Pixelview PlayTV Pro Ultra card. It has a
cx23881 chipset on it. It has also a different tuner
from my bt878 tv card (which is similiar to the
Philips FI1216 tuner module). Never try hacking it
since the main concern is to get continuous adc data.
Pinout is different also, 

I have uploaded the source code  and a few more
capture. You might want to look at the noise I talk
about. The noise might be cause by the PCI burst
during DMA. I have never tried capture more than 32
Mbyte of data (due to my PC setup), perhaps others 
can try out the code first before you invest in a
card. Even so, you might want to look at other cards
since I feel that the ADC power section of my card is
not clean and cause all this noise.


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