Would somebody be available to make a GOOD copy for me of the HW-101 =
schematic diagram (not that unusable copy which is on BAMA)?

I woul send $ cash to cover expenses and postage in advance.

Thanks

Tony, I0JX

"Antonio I0JX" wrote in message
...
Would somebody be available to make a GOOD copy for me of the HW-101
schematic diagram (not that unusable copy which is on BAMA)?

I woul send $ cash to cover expenses and postage in advance.

Thanks

***** There are two perfectly readable schematics on BAMA,the second copy is
almost as good as an original.Go he-
ftp://bama.edebris.com/bama/heath/hw101/hw101sch.djvu

Brian Goldsmith.

"Antonio I0JX" wrote in message
...
Would somebody be available to make a GOOD copy for me of the HW-101
schematic diagram (not that unusable copy which is on BAMA)?

I woul send $ cash to cover expenses and postage in advance.

Thanks

***** There are two perfectly readable schematics on BAMA,the second copy is
almost as good as an original.Go he-
ftp://bama.edebris.com/bama/heath/hw101/hw101sch.djvu

Brian Goldsmith.

I had also printed the "improved" diagram, but, although it is better =
than the other one, there still are many details which cannot be read, =
and the "good" part is anyway fatigating to read.

People keep compressing schematic diagrams with jpg or worse djvu, that =
are unsuitable for diagrams or text. So, a great part of the BAMA =
schematics are poor.

The only way to obtain good diagrams is to use lossless compression, =
like gif. People seems to be generally unaware that, with diagrams, gif =
produces a smaller file than jpg. For instance, converting a bit-map =
diagram of 1,137 kB, I obtained 42 kB with jpg and 13kB with gif.

Thanks for your suggestion anyway.

73

Tony, I0JX
--------------------------------------------------------
Antonio Vernucci, I0JX US call: K0JX
50-MHz beacon: 50.004 KHz FSK 10W 5/8 vertical antenna
home page: http://www.qsl.net/i0jx
e-mail: k0jx {at} amsat {dot} org
------------------------------------------------------
"Brian Goldsmith" ha scritto nel =
messaggio ...
=20
"Antonio I0JX" wrote in message=20
...
Would somebody be available to make a GOOD copy for me of the HW-101=20
schematic diagram (not that unusable copy which is on BAMA)?
=20
I woul send $ cash to cover expenses and postage in advance.
=20
Thanks
=20
***** There are two perfectly readable schematics on BAMA,the second =
copy is=20
almost as good as an original.Go he-
ftp://bama.edebris.com/bama/heath/hw101/hw101sch.djvu
=20
Brian Goldsmith.
=20
=20
=20

I had also printed the "improved" diagram, but, although it is better =
than the other one, there still are many details which cannot be read, =
and the "good" part is anyway fatigating to read.

People keep compressing schematic diagrams with jpg or worse djvu, that =
are unsuitable for diagrams or text. So, a great part of the BAMA =
schematics are poor.

The only way to obtain good diagrams is to use lossless compression, =
like gif. People seems to be generally unaware that, with diagrams, gif =
produces a smaller file than jpg. For instance, converting a bit-map =
diagram of 1,137 kB, I obtained 42 kB with jpg and 13kB with gif.

Thanks for your suggestion anyway.

73

Tony, I0JX
--------------------------------------------------------
Antonio Vernucci, I0JX US call: K0JX
50-MHz beacon: 50.004 KHz FSK 10W 5/8 vertical antenna
home page: http://www.qsl.net/i0jx
e-mail: k0jx {at} amsat {dot} org
------------------------------------------------------
"Brian Goldsmith" ha scritto nel =
messaggio ...
=20
"Antonio I0JX" wrote in message=20
...
Would somebody be available to make a GOOD copy for me of the HW-101=20
schematic diagram (not that unusable copy which is on BAMA)?
=20
I woul send $ cash to cover expenses and postage in advance.
=20
Thanks
=20
***** There are two perfectly readable schematics on BAMA,the second =
copy is=20
almost as good as an original.Go he-
ftp://bama.edebris.com/bama/heath/hw101/hw101sch.djvu
=20
Brian Goldsmith.
=20
=20
=20

Antonio I0JX wrote:
I had also printed the "improved" diagram, but, although it is better than the other one, there still are many
details which cannot be read, and the "good" part is anyway fatigating to read.

People keep compressing schematic diagrams with jpg or worse djvu, that are unsuitable for diagrams or text. So, a
great part of the BAMA schematics are poor.

The only way to obtain good diagrams is to use lossless compression, like gif. People seems to be generally unaware
that, with diagrams, gif produces a smaller file than jpg. For instance, converting a bit-map diagram of 1,137 kB, I
obtained 42 kB with jpg and 13kB with gif.

You can't make a general statement like that about jpg. When you make
a jpg file, you are allowed several "tweak" options that change how
much compression, and how much degradation is allowed. I can quite
easily produce a jpg that is much smaller than any gif, and has similar
level of quality. Most folks just accept the default parameters, which
are set for a reasonable quality color image.

-Chuck Harris

Chuck,

jpg is perfect for images and photo, but is not good when there are =
sharp black / while transitions as it occurs for circuit diagrams and =
text in general.With jpg, unless you reduce the compression level a lot, =
you will typically see small "dots" scattered around the lines =
representing the circuit wires. And wires do not appear "solid" any =
more. So, diagrams do not come out clean.

For schematic diagrams quality is the priority, not file size. Lossless =
compression (gif, png) is the only way to get a good diagram.

If you have time try and download the "improved" HW-101 schematic =
diagram from BAMA (or much better its mirror site =
http://bama.edebris.com/manuals/), you can judge yourself whether a =
technican can work comfortably with that.

73

Tony, I0JX


"Chuck Harris" ha scritto nel messaggio =
...
Antonio I0JX wrote:
I had also printed the "improved" diagram, but, although it is =
better than the other one, there still are many
details which cannot be read, and the "good" part is anyway =
fatigating to read.
=20
People keep compressing schematic diagrams with jpg or worse djvu, =
that are unsuitable for diagrams or text. So, a
great part of the BAMA schematics are poor.
=20
The only way to obtain good diagrams is to use lossless compression, =
like gif. People seems to be generally unaware
that, with diagrams, gif produces a smaller file than jpg. For =
instance, converting a bit-map diagram of 1,137 kB, I
obtained 42 kB with jpg and 13kB with gif.
=20
You can't make a general statement like that about jpg. When you make
a jpg file, you are allowed several "tweak" options that change how
much compression, and how much degradation is allowed. I can quite
easily produce a jpg that is much smaller than any gif, and has =
similar
level of quality. Most folks just accept the default parameters, =
which
are set for a reasonable quality color image.
=20
-Chuck Harris

Tony,

I went looking, and as far as I can tell, bama doesn't have a jpeg of the HW101
on his site, only djvu.

If you set the quality of the jpeg rendering to 77%, you get about
the same size as a gif, and the "dots" you are complaining about
go away. Add some smoothing, and you can get the same result
with around 50%, and 1/3 the file size.

Gif works, but there are better lossless algorithms readily available. The
typical Gif schematic I see is B&W, stored in full 24bit color, with large
borders around the important stuff. And as a result, they are very large
in size. Some simple adjustments would improve this, of course, but most
folks are so dumbed down that they haven't a clue about things like that.

I have worked with numerous schematics of very poor quality, and somehow,
I can always get the job done. But as always, YMMV.

-Chuck Harris

Antonio I0JX wrote:
Chuck,

jpg is perfect for images and photo, but is not good when there are sharp black / while transitions as it occurs for
circuit diagrams and text in general.With jpg, unless you reduce the compression level a lot, you will typically see
small "dots" scattered around the lines representing the circuit wires. And wires do not appear "solid" any more. So,
diagrams do not come out clean.

For schematic diagrams quality is the priority, not file size. Lossless compression (gif, png) is the only way to get
a good diagram.

If you have time try and download the "improved" HW-101 schematic diagram from BAMA (or much better its mirror site
http://bama.edebris.com/manuals/), you can judge yourself whether a technican can work comfortably with that.

73

Tony, I0JX

Chuck,

yes the HW-101 is djvu not jpg. In my opinion that is not a good quality =
diagram; of course it can be useful, even if some components values =
cannot be clearly read. The EICO 722 was recently changed from jpg to =
djvu, but quality is about the same.

I am not a defensor of any particular compression scheme. What I would =
suggest the BAMA page keeper is to give clear instructions to people =
wishing to upload manuals, so that even the unexperienced guys can =
contribute in useful manner. At that regard the B&W lossless schemes =
(gif, png or whatever else, don't care) yield the advantage that there =
is little to play with, and people unfamiliar with compression schemes =
so run less risks to upload poor diagrams.

Thanks for the chat and 73

Tony, I0JX

"Chuck Harris" ha scritto nel messaggio =
...
Tony,
=20
I went looking, and as far as I can tell, bama doesn't have a jpeg of =
the HW101
on his site, only djvu.
=20
If you set the quality of the jpeg rendering to 77%, you get about
the same size as a gif, and the "dots" you are complaining about
go away. Add some smoothing, and you can get the same result
with around 50%, and 1/3 the file size.
=20
Gif works, but there are better lossless algorithms readily available. =
The
typical Gif schematic I see is B&W, stored in full 24bit color, with =
large
borders around the important stuff. And as a result, they are very =
large
in size. Some simple adjustments would improve this, of course, but =
most
folks are so dumbed down that they haven't a clue about things like =
that.
=20
I have worked with numerous schematics of very poor quality, and =
somehow,
I can always get the job done. But as always, YMMV.
=20
-Chuck Harris
=20
Antonio I0JX wrote:
Chuck,
=20
jpg is perfect for images and photo, but is not good when there are =
sharp black / while transitions as it occurs for
circuit diagrams and text in general.With jpg, unless you reduce the =
compression level a lot, you will typically see
small "dots" scattered around the lines representing the circuit =
wires. And wires do not appear "solid" any more. So,
diagrams do not come out clean.
=20
For schematic diagrams quality is the priority, not file size. =
Lossless compression (gif, png) is the only way to get
a good diagram.
=20
If you have time try and download the "improved" HW-101 schematic =
diagram from BAMA (or much better its mirror site
http://bama.edebris.com/manuals/), you can judge yourself whether a =
technican can work comfortably with that.
=20
73
=20
Tony, I0JX

I have a full HW101 manual copy with the large fold outs in the back, you
can have it free but you arrange shipping in zip code 11030
About 1 1/2 inch thick with a binder, beat up but all you need.
I'm in Long island, New York.

Remove "NOSPAM"


-Joe


"Antonio I0JX" wrote in message
...
Chuck,

yes the HW-101 is djvu not jpg. In my opinion that is not a good quality
diagram; of course it can be useful, even if some components values cannot
be clearly read. The EICO 722 was recently changed from jpg to djvu, but
quality is about the same.

I am not a defensor of any particular compression scheme. What I would
suggest the BAMA page keeper is to give clear instructions to people wishing
to upload manuals, so that even the unexperienced guys can contribute in
useful manner. At that regard the B&W lossless schemes (gif, png or whatever
else, don't care) yield the advantage that there is little to play with, and
people unfamiliar with compression schemes so run less risks to upload poor
diagrams.

Thanks for the chat and 73

Tony, I0JX

"Chuck Harris" ha scritto nel messaggio
...
Tony,

I went looking, and as far as I can tell, bama doesn't have a jpeg of the
HW101
on his site, only djvu.

If you set the quality of the jpeg rendering to 77%, you get about
the same size as a gif, and the "dots" you are complaining about
go away. Add some smoothing, and you can get the same result
with around 50%, and 1/3 the file size.

Gif works, but there are better lossless algorithms readily available.
The
typical Gif schematic I see is B&W, stored in full 24bit color, with large
borders around the important stuff. And as a result, they are very large
in size. Some simple adjustments would improve this, of course, but most
folks are so dumbed down that they haven't a clue about things like that.

I have worked with numerous schematics of very poor quality, and somehow,
I can always get the job done. But as always, YMMV.

-Chuck Harris

Antonio I0JX wrote:
Chuck,

jpg is perfect for images and photo, but is not good when there are
sharp black / while transitions as it occurs for
circuit diagrams and text in general.With jpg, unless you reduce the
compression level a lot, you will typically see
small "dots" scattered around the lines representing the circuit wires.
And wires do not appear "solid" any more. So,
diagrams do not come out clean.

For schematic diagrams quality is the priority, not file size. Lossless
compression (gif, png) is the only way to get
a good diagram.

If you have time try and download the "improved" HW-101 schematic
diagram from BAMA (or much better its mirror site
http://bama.edebris.com/manuals/), you can judge yourself whether a
technican can work comfortably with that.

73

Tony, I0JX