What is AOPA doing to their approach plates?

[Roy Smith]

Here's two URLs pointing to PDF's of the same approach:

http://www.airnav.com/depart?http://204.108.4.16/d-tpp/0502/00548I2.PDF
http://download.aopa.org/iap/20050217/SW-1/saf_ils_rwy_02.pdf

The airnav version is crystal clear. The AOPA version is blurry and
pixelated. Zooming in, it almost looks as if somebody took a printed plate
and scanned it. What the heck is AOPA doing to the PDF files that make
them look this bad?

[Juan Jimenez]

AirNav is pointing you to the National Aeronatical Chart Office. The PDFs
appear to be generated from original postscript sources.

The AOPA does appear to be either a scanned document, or it is being
produced from a lower qualify source, or it's being produced with an older
version of Acrobat, or ??

Why not ask AOPA? :)

Juan

"Roy Smith" > wrote in message
...
> Here's two URLs pointing to PDF's of the same approach:
>
> http://www.airnav.com/depart?http://204.108.4.16/d-tpp/0502/00548I2.PDF
> http://download.aopa.org/iap/20050217/SW-1/saf_ils_rwy_02.pdf
>
> The airnav version is crystal clear. The AOPA version is blurry and
> pixelated. Zooming in, it almost looks as if somebody took a printed
> plate
> and scanned it. What the heck is AOPA doing to the PDF files that make
> them look this bad?

[Marty Shapiro]

Roy Smith > wrote in
:

> Here's two URLs pointing to PDF's of the same approach:
>
> http://www.airnav.com/depart?http://204.108.4.16/d-tpp/0502/00548I2.PDF
> http://download.aopa.org/iap/20050217/SW-1/saf_ils_rwy_02.pdf
>
> The airnav version is crystal clear. The AOPA version is blurry and
> pixelated. Zooming in, it almost looks as if somebody took a printed
> plate and scanned it. What the heck is AOPA doing to the PDF files
> that make them look this bad?
>

AOPA a while ago stated that they were slightly reducing the quality of the
image so it would download faster. I tried the two links you provided and
observed that the Airnav version was a 565 KB download, while the AOPA
version was 71 KB. When I printed both versions, I found both just as
usable.

--
Marty Shapiro
Silicon Rallye Inc.

(remove SPAMNOT to email me)

[Roy Smith]

In article >,
Marty Shapiro > wrote:

> Roy Smith > wrote in
> :
>
> > Here's two URLs pointing to PDF's of the same approach:
> >
> > http://www.airnav.com/depart?http://204.108.4.16/d-tpp/0502/00548I2.PDF
> > http://download.aopa.org/iap/20050217/SW-1/saf_ils_rwy_02.pdf
> >
> > The airnav version is crystal clear. The AOPA version is blurry and
> > pixelated. Zooming in, it almost looks as if somebody took a printed
> > plate and scanned it. What the heck is AOPA doing to the PDF files
> > that make them look this bad?
> >
>
> AOPA a while ago stated that they were slightly reducing the quality of the
> image so it would download faster. I tried the two links you provided and
> observed that the Airnav version was a 565 KB download, while the AOPA
> version was 71 KB. When I printed both versions, I found both just as
> usable.

OK, that's a fair enough explanation. If I was still using dial-up, I
would certainly be going for the AOPA versions.

[OtisWinslow]

Just go here and forget AOPA:


http://avn.faa.gov/index.asp?xml=naco/online/d_tpp




"Roy Smith" > wrote in message
...
> Here's two URLs pointing to PDF's of the same approach:
>
> http://www.airnav.com/depart?http://204.108.4.16/d-tpp/0502/00548I2.PDF
> http://download.aopa.org/iap/20050217/SW-1/saf_ils_rwy_02.pdf
>
> The airnav version is crystal clear. The AOPA version is blurry and
> pixelated. Zooming in, it almost looks as if somebody took a printed
> plate
> and scanned it. What the heck is AOPA doing to the PDF files that make
> them look this bad?