[opendtv] Re: 5th generation Test

Bob wrote:
> I noticed that the LG tuner board display from the CES show that Mark
> showed me again while I was at his place was larger than the other tuner
> cards. It looks like the receiver we tested did not have this board but
> a cheaper one though both had the LG 5th generation chip.

As I and others have advised in earlier posts, good DTV receiver performance 
begins with a well designed RF front end ; see Mr. Rhodes series of 
articles, some of which have been posted on this forum. The ATSC receiver RP 
overlooks (actually ignores) this critical aspect, which has been a known 
requirement for good receiver design for many many years.

The DTV broadcast system, with it's packed spectrum, has place a significant 
burden upon the OTA receivers front end. However, this fact is ignored by 
manufacturers who continue to use the "dumbed down" receivers designed to 
operate in the benign cable environment. As I previously suggested might be 
the case, it appears that Zenith utilized a specially designed RF front end 
in the receiver used for  the 5th Gen demonstrations - possibly never to be 
seen again in a consumer product.

----- Original Message ----- 
From: "Bob Miller" <bob@xxxxxxxxxx>
To: <opendtv@xxxxxxxxxxxxx>
Sent: Monday, March 14, 2005 10:01 PM
Subject: [opendtv] 5th generation Test


> Our latest test of a receiver using LG's 5th generation chip but not
> made by LG was a major disappointment. It seems that having the LG 5th
> generation chip is not what made the LG prototype we tested last summer
> work so well.
>
> We took it over to Mark Schubin's apartment and he can tell you what his
> experience with it was.
>
> It was on a par with the Hisense receiver we have /IMO/.
>
> I noticed that the LG tuner board display from the CES show that Mark
> showed me again while I was at his place was larger than the other tuner
> cards. It looks like the receiver we tested did not have this board but
> a cheaper one though both had the LG 5th generation chip.
>
> Which brings up the idea that maybe this LG board is too expensive for
> LG to use in making STB's. Maybe they can bury the cost in integrated
> HDTV sets or maybe they themselves are not using this board in their
> integrated HDTV sets either. At least two models advertise that they use
> 5th generation chips.
>
> But the simple fact that an STB or an integrated set is using a 5th
> generation chip doesn't say enough about its performance.
>
> We are looking into getting the full LG 5th generation tuner in a
> receiver at the moment.
>
> Shades of 1999, this can go on forever.
>
> Bob Miller
>
>
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