Driver to drive?

[Steve Wilson]

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/22/2018 02:09 PM, Steve Wilson wrote:
So you're the guy who posts upside-down pdfs!

Here it is, right-side up, OCR'd and reduced from 3,494,831 to 1,652,242
bytes:

https://silvercell.000webhostapp.com/pdfs/dietz.pdf

Please replace the one on your site so people can use it

Thanks!

Cheers

Phil Hobbs

I was browsing your website to try to find where you put your SED pdf
files. I found https://electrooptical.net/SED, but there are no pdf files
there. Can you include a link to that folder somewhere?

I also found quite a few broken links. These have a bad effect in google
searh since google will downgrade your site and put it at the bottom of the
search rank. Broken links also affect user satisfaction since they can't
find interesting files.

You can check for broken links at a number of free online checkers, such as

https://www.deadlinkchecker.com/

http://www.brokenlinkcheck.com/
https://www.deadlinkchecker.com/website-dead-link-checker.asp

The top one is the best and fastest. I'm not sure if the nest two are
actually the same site or not.

Once you find broken links, you need to remove them from google search.
There are lots of links that tell you how to do this. For example

https://www.wantextra.com/remove-broken-links-google/

 

[Steve Wilson]

Steve Wilson <no@spam.com> wrote:

I also found quite a few broken links. These have a bad effect in google
searh since google will downgrade your site and put it at the bottom of
the search rank. Broken links also affect user satisfaction since they
can't find interesting files.

You can check for broken links at a number of free online checkers, such
as

https://www.deadlinkchecker.com/

http://www.brokenlinkcheck.com/
https://www.deadlinkchecker.com/website-dead-link-checker.asp

The top one is the best and fastest. I'm not sure if the nest two are
actually the same site or not.

It turns out

https://www.deadlinkchecker.com/

and

https://www.deadlinkchecker.com/website-dead-link-checker.asp

are actually the same site, but they give slightly different results. The
bottom link seems to find a few more broken links.

JL has some problems also, but these are mainly missing image links.

 

[Steve Wilson]

Steve Wilson <no@spam.com> wrote:

I also found quite a few broken links. These have a bad effect in google
searh since google will downgrade your site and put it at the bottom of
the search rank. Broken links also affect user satisfaction since they
can't find interesting files.

Actually, there's some positive feedback going on here. If google puts you at
the bottom of the search results, then few people will visit your site.

If few people visit your site, then google will put you at the bottom of the
search results.

So you get clobbered both ways.

 

[John Larkin]

On Fri, 23 Feb 2018 11:54:48 GMT, Steve Wilson <no@spam.com> wrote:

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/22/2018 02:09 PM, Steve Wilson wrote:
So you're the guy who posts upside-down pdfs!

Here it is, right-side up, OCR'd and reduced from 3,494,831 to 1,652,242
bytes:

https://silvercell.000webhostapp.com/pdfs/dietz.pdf

Please replace the one on your site so people can use it

Thanks!

Cheers

Phil Hobbs

I was browsing your website to try to find where you put your SED pdf
files. I found https://electrooptical.net/SED, but there are no pdf files
there. Can you include a link to that folder somewhere?

I also found quite a few broken links. These have a bad effect in google
searh since google will downgrade your site and put it at the bottom of the
search rank. Broken links also affect user satisfaction since they can't
find interesting files.

He employs hunchbacks.


--

John Larkin Highland Technology, Inc

lunatic fringe electronics

 

[Phil Hobbs]

On 02/23/2018 09:44 AM, John Larkin wrote:

On Fri, 23 Feb 2018 11:54:48 GMT, Steve Wilson <no@spam.com> wrote:

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/22/2018 02:09 PM, Steve Wilson wrote:
So you're the guy who posts upside-down pdfs!

Here it is, right-side up, OCR'd and reduced from 3,494,831 to 1,652,242
bytes:

https://silvercell.000webhostapp.com/pdfs/dietz.pdf

Please replace the one on your site so people can use it

Thanks!

Cheers

Phil Hobbs

I was browsing your website to try to find where you put your SED pdf
files. I found https://electrooptical.net/SED, but there are no pdf files
there. Can you include a link to that folder somewhere?

I also found quite a few broken links. These have a bad effect in google
searh since google will downgrade your site and put it at the bottom of the
search rank. Broken links also affect user satisfaction since they can't
find interesting files.

He employs hunchbacks.


An underrepresented minority. Watch out.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
https://hobbs-eo.com

 

[Joerg]

On 2018-02-22 20:53, Long Hair wrote:

Joerg wrote:

snip

Ya well, I am not that interested in whether it's 30W, 27W or 33W.

The suggestion was more toward insuring that the dimmer itself is not
wasting anything.

Then it would have to be warming a little which it doesn't. It remains
completely cold. Of course, these things will mess up the power factor.

[...]

--
Regards, Joerg

http://www.analogconsultants.com/

 

[Steve Wilson]

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/23/2018 09:44 AM, John Larkin wrote:
He employs hunchbacks.

An underrepresented minority. Watch out.

Cheers

Phil Hobbs

LOL. You guys are insane. Best laugh I've had all week.

Thanks

 

[Phil Hobbs]

On 02/23/2018 06:54 AM, Steve Wilson wrote:

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/22/2018 02:09 PM, Steve Wilson wrote:
So you're the guy who posts upside-down pdfs!

Here it is, right-side up, OCR'd and reduced from 3,494,831 to 1,652,242
bytes:

https://silvercell.000webhostapp.com/pdfs/dietz.pdf

Please replace the one on your site so people can use it

Thanks!

Cheers

Phil Hobbs

I was browsing your website to try to find where you put your SED pdf
files. I found https://electrooptical.net/SED, but there are no pdf files
there. Can you include a link to that folder somewhere?

Yup.

I also found quite a few broken links. These have a bad effect in google
searh since google will downgrade your site and put it at the bottom of the
search rank. Broken links also affect user satisfaction since they can't
find interesting files.

You can check for broken links at a number of free online checkers, such as

https://www.deadlinkchecker.com/

http://www.brokenlinkcheck.com/
https://www.deadlinkchecker.com/website-dead-link-checker.asp

The top one is the best and fastest. I'm not sure if the nest two are
actually the same site or not.

Once you find broken links, you need to remove them from google search.
There are lots of links that tell you how to do this. For example

https://www.wantextra.com/remove-broken-links-google/

We recently switched the site from my classical hand-tooled artisanal
HTML (from an old family recipe) to some new-fangled Django thing that
only Dashing Firmware Hunchback understands. I'll mention it to him.

I found that all the links to the OldBooks directory (under
Resources->Good Books) don't work.

Any others?

Thanks

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
https://hobbs-eo.com

 

[JM]

On 21/02/2018 01:29, pcdhobbs@gmail.com wrote:

I have written a program that controls that thing over the network
and measures spectra from 0.1 Hz to 1MHz, one FFT per decade, reads
the results, combines them and plots them with gnuplot.

One needs a converter box from coax ethernet to contemporary network,
then one just opens port 5000-something on 192.168.178.111 and simply
reads and writes GPIB-strings. And the coax needs 2 terminations, even
when the "cable" is only 5 inch long.

No need for GPIB cards and semi-supported drivers.

These measurements of voltage regulator noise have been done with it:

https://www.flickr.com/photos/137684711@N07/24070698809/in/album-72157662535945536/



Just in case you win it and are interested.

Hi, Gerhard,

I did, and I am. I'll have to gin up a nice low-1/f-noise preamp for it, but that'll be fun.

Thanks

Phil Hobbs

Note that the software options can easily be unlocked on these (although
they would be of little use for your intended application).

 

[John Larkin]

On Fri, 23 Feb 2018 10:11:05 -0500, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/23/2018 09:44 AM, John Larkin wrote:
On Fri, 23 Feb 2018 11:54:48 GMT, Steve Wilson <no@spam.com> wrote:

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/22/2018 02:09 PM, Steve Wilson wrote:
So you're the guy who posts upside-down pdfs!

Here it is, right-side up, OCR'd and reduced from 3,494,831 to 1,652,242
bytes:

https://silvercell.000webhostapp.com/pdfs/dietz.pdf

Please replace the one on your site so people can use it

Thanks!

Cheers

Phil Hobbs

I was browsing your website to try to find where you put your SED pdf
files. I found https://electrooptical.net/SED, but there are no pdf files
there. Can you include a link to that folder somewhere?

I also found quite a few broken links. These have a bad effect in google
searh since google will downgrade your site and put it at the bottom of the
search rank. Broken links also affect user satisfaction since they can't
find interesting files.

He employs hunchbacks.


An underrepresented minority. Watch out.

Cheers

Phil Hobbs

Sorry: spinally challenged.


--

John Larkin Highland Technology, Inc

lunatic fringe electronics

 

[John Larkin]

On Fri, 23 Feb 2018 10:48:44 -0500, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/23/2018 06:54 AM, Steve Wilson wrote:
Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/22/2018 02:09 PM, Steve Wilson wrote:
So you're the guy who posts upside-down pdfs!

Here it is, right-side up, OCR'd and reduced from 3,494,831 to 1,652,242
bytes:

https://silvercell.000webhostapp.com/pdfs/dietz.pdf

Please replace the one on your site so people can use it

Thanks!

Cheers

Phil Hobbs

I was browsing your website to try to find where you put your SED pdf
files. I found https://electrooptical.net/SED, but there are no pdf files
there. Can you include a link to that folder somewhere?

Yup.


I also found quite a few broken links. These have a bad effect in google
searh since google will downgrade your site and put it at the bottom of the
search rank. Broken links also affect user satisfaction since they can't
find interesting files.

You can check for broken links at a number of free online checkers, such as

https://www.deadlinkchecker.com/

http://www.brokenlinkcheck.com/
https://www.deadlinkchecker.com/website-dead-link-checker.asp

The top one is the best and fastest. I'm not sure if the nest two are
actually the same site or not.

Once you find broken links, you need to remove them from google search.
There are lots of links that tell you how to do this. For example

https://www.wantextra.com/remove-broken-links-google/


We recently switched the site from my classical hand-tooled artisanal
HTML (from an old family recipe) to some new-fangled Django thing that
only Dashing Firmware Hunchback understands. I'll mention it to him.

I found that all the links to the OldBooks directory (under
Resources->Good Books) don't work.

Any others?

Thanks

Phil Hobbs

The Brat did our web site in raw HTML.


--

John Larkin Highland Technology, Inc

lunatic fringe electronics

 

[Steve Wilson]

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

We recently switched the site from my classical hand-tooled artisanal
HTML (from an old family recipe) to some new-fangled Django thing that
only Dashing Firmware Hunchback understands. I'll mention it to him.

I found that all the links to the OldBooks directory (under
Resources->Good Books) don't work.

Any others?

Thanks

Phil Hobbs

Your progress is amazing. Using

https://www.deadlinkchecker.com/website-dead-link-checker.asp

It found 598/598 URLs checked, 460 OK, 138 failed early this morning.

Just now, it found 416/416 URLs checked, 399 OK, 17 failed. Big change.

I found a ton using WinHTtrack, but it would take some time to get another
report and compare the results.

Some of the pages are nice. You are to be congratulated on your amazing
accomplishments. I don't think I've seen another website like yours.

 

[Steve Wilson]

John Larkin <jjlarkin@highlandtechnology.com> wrote:

> The Brat did our web site in raw HTML.

That's the best way I find. But I steer clear of the latest overblown CSS-
heavy HTML5 XHTML junk. I'm strictly HTML2 and find I can do just about
anything the latest overblown sites can do without the bloat. I'm also down
on using javascript to do fancy footwork with the pages. Just give me the
basic information I'm after and stop trying to make the site into a Youtube
animated video that wastes my time.

https://en.wikipedia.org/wiki/HTML

 

[John Larkin]

On Fri, 23 Feb 2018 16:56:18 GMT, Steve Wilson <no@spam.com> wrote:

John Larkin <jjlarkin@highlandtechnology.com> wrote:

The Brat did our web site in raw HTML.

That's the best way I find. But I steer clear of the latest overblown CSS-
heavy HTML5 XHTML junk. I'm strictly HTML2 and find I can do just about
anything the latest overblown sites can do without the bloat. I'm also down
on using javascript to do fancy footwork with the pages. Just give me the
basic information I'm after and stop trying to make the site into a Youtube
animated video that wastes my time.

https://en.wikipedia.org/wiki/HTML

She said the worst part was making it work with Internet Explorer.


--

John Larkin Highland Technology, Inc

lunatic fringe electronics

 

[Phil Hobbs]

On 02/23/2018 11:42 AM, Steve Wilson wrote:

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

We recently switched the site from my classical hand-tooled artisanal
HTML (from an old family recipe) to some new-fangled Django thing that
only Dashing Firmware Hunchback understands. I'll mention it to him.

I found that all the links to the OldBooks directory (under
Resources->Good Books) don't work.

Any others?

Thanks

Phil Hobbs

Your progress is amazing. Using

https://www.deadlinkchecker.com/website-dead-link-checker.asp

It found 598/598 URLs checked, 460 OK, 138 failed early this morning.

Just now, it found 416/416 URLs checked, 399 OK, 17 failed. Big change.

I found a ton using WinHTtrack, but it would take some time to get another
report and compare the results.

Thanks. DFH found that the OldBooks directory had had its permission
changed, and there was some issue with all the phone number links (which
were the bulk of the failures).

Of the remaining five, four are external links that changed and there's
one missing link to our site.

Some of the pages are nice. You are to be congratulated on your amazing
accomplishments. I don't think I've seen another website like yours.

Thanks! It's been a good ride overall.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
https://hobbs-eo.com

 

[Phil Hobbs]

On 02/23/2018 11:15 AM, JM wrote:

On 21/02/2018 01:29, pcdhobbs@gmail.com wrote:
I have written a program that controls that thing over the network
and measures spectra from 0.1 Hz to 1MHz, one FFT per decade, reads
the results, combines them and plots them with gnuplot.

One needs a converter box from coax ethernet to contemporary network,
then one just opens port 5000-something on 192.168.178.111 and simply
reads and writes GPIB-strings. And the coax needs 2 terminations, even
when the "cable" is only 5 inch long.

No need for GPIB cards and semi-supported drivers.

These measurements of voltage regulator noise have been done with it:

https://www.flickr.com/photos/137684711@N07/24070698809/in/album-72157662535945536/

   


Just in case you win it and are interested.

Hi, Gerhard,

I did, and I am. I'll have to gin up a nice low-1/f-noise preamp for
it, but that'll be fun.

Thanks

Phil Hobbs


Note that the software options can easily be unlocked on these (although
they would be of little use for your intended application).

The cell-phone stuff won't help much, but I'm hoping that I can turn on
the AYB (spectrogram and waterfall) option without scrooching it.
(Option AY8, the internal source, would be useful too, but it's probably
a HW option.)

The software one should be no big issue as long as the floppy drive
works reliably.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
https://hobbs-eo.com

 

[Sjouke Burry]

On 23-2-2018 17:32, John Larkin wrote:

On Fri, 23 Feb 2018 10:11:05 -0500, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/23/2018 09:44 AM, John Larkin wrote:
On Fri, 23 Feb 2018 11:54:48 GMT, Steve Wilson <no@spam.com> wrote:

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/22/2018 02:09 PM, Steve Wilson wrote:
So you're the guy who posts upside-down pdfs!

Here it is, right-side up, OCR'd and reduced from 3,494,831 to 1,652,242
bytes:

https://silvercell.000webhostapp.com/pdfs/dietz.pdf

Please replace the one on your site so people can use it

Thanks!

Cheers

Phil Hobbs

I was browsing your website to try to find where you put your SED pdf
files. I found https://electrooptical.net/SED, but there are no pdf files
there. Can you include a link to that folder somewhere?

I also found quite a few broken links. These have a bad effect in google
searh since google will downgrade your site and put it at the bottom of the
search rank. Broken links also affect user satisfaction since they can't
find interesting files.

He employs hunchbacks.


An underrepresented minority. Watch out.

Cheers

Phil Hobbs

Sorry: spinally challenged.


You are challenged by a Popey vegetable ??? Tssssskkkk.....

 

[Phil Hobbs]

On 02/23/2018 11:59 AM, John Larkin wrote:

On Fri, 23 Feb 2018 16:56:18 GMT, Steve Wilson <no@spam.com> wrote:

John Larkin <jjlarkin@highlandtechnology.com> wrote:

The Brat did our web site in raw HTML.

That's the best way I find. But I steer clear of the latest overblown CSS-
heavy HTML5 XHTML junk. I'm strictly HTML2 and find I can do just about
anything the latest overblown sites can do without the bloat. I'm also down
on using javascript to do fancy footwork with the pages. Just give me the
basic information I'm after and stop trying to make the site into a Youtube
animated video that wastes my time.

https://en.wikipedia.org/wiki/HTML


She said the worst part was making it work with Internet Explorer.

Good point. I'll have to ask some Windows user to check ours out and
see--we're 100% linux round here.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
https://hobbs-eo.com

 

[John Larkin]

On Fri, 23 Feb 2018 01:14:45 -0500, legg <legg@nospam.magma.ca> wrote:

On Thu, 22 Feb 2018 07:11:41 -0800, John Larkin
jjlarkin@highlandtechnology.com> wrote:

On Sun, 18 Feb 2018 13:12:50 -0500, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/18/2018 08:14 AM, Chris Jones wrote:
On 17/02/2018 07:18, bloggs.fredbloggs.fred@gmail.com wrote:
On Friday, February 16, 2018 at 12:51:24 PM UTC-5, John Larkin wrote:
On Fri, 16 Feb 2018 08:57:05 -0800 (PST),
bloggs.fredbloggs.fred@gmail.com wrote:

On Thursday, February 15, 2018 at 8:32:35 PM UTC-5, John Larkin wrote:
LM317's like some ESR in their output capacitors. I don't want any
electrolytic or tantalum caps in my new thing, just ceramics, and the
sim sure rings:

https://www.dropbox.com/s/11b3w42nsvpliki/317_nocomp.jpg?raw=1

But this fixes it:

https://www.dropbox.com/s/9q80heyfbwh5frp/317_comp.jpg?raw=1

This ain't rocket science, but I haven't seen it done before.

317 needs no such ESR compensation.

The data sheet says it does.

The ringing looks suspiciously like excitation of the SRF of an
output capacitor.

The frequency is low, and is different on the rising and falling edges
of the load current pulse. It's the chip pseudo-inductance resonating,
not the cap's ESL. If the ringing were local to the caps, my damping
on ADJ wouldn't fix that.

Cap series L makes a different waveform than paralleled inductance.


Did your model give it any ESL? And your solution merely reduces the
shunt resistance by a factor of 20x which probably has more to do
with damping than anything else.

With a big cap from ADJ to ground, it rings badly, too. It has to be
the *right* capacitor to damp the ringing.

I tried this with two different LM317 models; the ringing is somewhat
different (the LT317 is better), but the damping idea is the same.

It's amazing that LT ever made a 317. I think they did that early on,
when they needed some revenue. They want $4 for it! I'm paying less
than a tenth of that for TI.

I doubt you're going to see this energetic resonance on anything other
than the LT part.


I doubted it too, but found out the hard way when:
my 337's all oscillated, and
the 317s rang so badly that the oscillation ripple on the positive rails
was even bigger than on the negative rails.

The 317s wouldn't oscillate by themselves, but they would ring like a
bell even after I cured the 337's of oscillation.

I had to scratch off a lot of solder mask and tack on many tantalums to
cure my boards. Quite embarassing.


Check out the Erroll Dietz article I posted upthread.

He used three values of Cadj, 0, 10u, and 1000u. He didn't try
anything like 22nF. I'm sort of surprised that nobody seems to have
tried that, or at least publicized it.

As I recall, from the time when I was actually checking transient
response and output noise of commercial linear prototypes, the kudos
for getting a 10n cap to do the job that a 10uF part was illustrated
to do (or not to do) in the literature, wasn't worth mentioning.

If it was, it was as the prelude to the inevitable 'Why not just leave
it out? Nobody's going to do that anyways.'

Tantalum caps were not even a consideration.....but the product still
worked over the temperature range.

With the harnessing involved, critical decoupling was always at the
load, so my measurements on the output terminals were just 'nice to
know' ~ required for a test spec or sales blurb.

Power supplys were, and are still, just not sexy.

RL

Some of my boards are half power supply. Many steps from +48 to +1 to
-12. Nuisance.


--

John Larkin Highland Technology, Inc
picosecond timing precision measurement

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com

 

[Gerhard Hoffmann]

Am 23.02.2018 um 18:11 schrieb Phil Hobbs:

On 02/23/2018 11:15 AM, JM wrote:
On 21/02/2018 01:29, pcdhobbs@gmail.com wrote:
I have written a program that controls that thing over the network
and measures spectra from 0.1 Hz to 1MHz, one FFT per decade, reads
the results, combines them and plots them with gnuplot.

One needs a converter box from coax ethernet to contemporary network,
then one just opens port 5000-something on 192.168.178.111 and simply
reads and writes GPIB-strings. And the coax needs 2 terminations, even
when the "cable" is only 5 inch long.

No need for GPIB cards and semi-supported drivers.

These measurements of voltage regulator noise have been done with it:

https://www.flickr.com/photos/137684711@N07/24070698809/in/album-72157662535945536/

   


Just in case you win it and are interested.

Hi, Gerhard,

I did, and I am. I'll have to gin up a nice low-1/f-noise preamp for
it, but that'll be fun.

Thanks

Phil Hobbs


Note that the software options can easily be unlocked on these (although
they would be of little use for your intended application).

The cell-phone stuff won't help much, but I'm hoping that I can turn on
the AYB (spectrogram and waterfall) option without scrooching it.
(Option AY8, the internal source, would be useful too, but it's probably
a HW option.)

The software one should be no big issue as long as the floppy drive
works reliably.

Mine has most options, but I'm not sure about the waterfall.
What is missing is the source up converter for the RF section.
But for RF I have a real VNA.

That thing has so much parameters to set up that I wrote the program
to control it remotely very soon. I had to use a pre-flight check list
otherwise.

Important options are dual channel, needed for cross correlation,
source for Bode plots etc and memory extension.

My program is in C, under Linux. It probably can be compiled under
Windows, too. You'll need a lot of gain to mask the noise in the 1/f
region. That eats into the dynamic range.

I'll remove the most embarrassing FIXMEs over the weekend, a good
opportunity to clean it up

cheers, Gerhard