Driver to drive?

David Eather wrote:

--------------------


If I had to leave a light on and wanted safety, I would be thinking of
rolling my own low voltage LED light using an old style, approved mains
transformer, bridge, cap and linear regulator, all conservatively rated,
plus fuse and over temperature protection.

** Then one of these might do as well.

No inverter, 5w consumption, equals a 30W incandescent.



..... Phil
 
On 02/23/2018 02:15 PM, Phil Hobbs wrote:
On 02/16/2018 09:59 AM, Phil Hobbs wrote:
Hi, all,

I need another FFT analyzer.  I really like my HP 35660A, but it only
goes up to 100 kHz (50 kHz for two-channel measurements).  I'd really
like one that goes up to at least 10 MHz, and can do the same sorts of
stuff, especially display noise spectral density in different units on
different scales and perform frequency response testing easily.

There are a bunch of USB-style things, which might be okay as long as
they have Linux software available.

What I really want is a smallish boat anchor with two channels, 14-16
bit resolution, > 50 MS/s sampling, FFT analysis, a nice display, and
that can talk to USB sticks.

So my new-to-me HP 89441A analyzer is due to be here Tuesday. I noticed
that it doesn't have the serial cable--is it a regular straight-through
9-pin cable, or something weird?

The beast is currently sitting on my front porch, having been delivered
earlier today. The box weighs over 100 pounds, so I'll have to get DFH
to help move it. Probably nobody is going to steal it in the night.

Film at 11. ;)

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
http://hobbs-eo.com
 
On Mon, 26 Feb 2018 20:11:11 -0500, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/23/2018 02:15 PM, Phil Hobbs wrote:
On 02/16/2018 09:59 AM, Phil Hobbs wrote:
Hi, all,

I need another FFT analyzer.  I really like my HP 35660A, but it only
goes up to 100 kHz (50 kHz for two-channel measurements).  I'd really
like one that goes up to at least 10 MHz, and can do the same sorts of
stuff, especially display noise spectral density in different units on
different scales and perform frequency response testing easily.

There are a bunch of USB-style things, which might be okay as long as
they have Linux software available.

What I really want is a smallish boat anchor with two channels, 14-16
bit resolution, > 50 MS/s sampling, FFT analysis, a nice display, and
that can talk to USB sticks.

So my new-to-me HP 89441A analyzer is due to be here Tuesday. I noticed
that it doesn't have the serial cable--is it a regular straight-through
9-pin cable, or something weird?

The beast is currently sitting on my front porch, having been delivered
earlier today. The box weighs over 100 pounds, so I'll have to get DFH
to help move it. Probably nobody is going to steal it in the night.

Film at 11. ;)

Cheers

Phil Hobbs

Sheeesh! I have three different dolly types to cope with such, plus a
block-and-tackle... quite convenient when you're 78 ;-)

...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| STV, Queen Creek, AZ 85142 Skype: skypeanalog | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

It's what you learn, after you know it all, that counts.
 
On Mon, 26 Feb 2018 18:30:16 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

On Mon, 26 Feb 2018 20:11:11 -0500, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/23/2018 02:15 PM, Phil Hobbs wrote:
On 02/16/2018 09:59 AM, Phil Hobbs wrote:
Hi, all,

I need another FFT analyzer.  I really like my HP 35660A, but it only
goes up to 100 kHz (50 kHz for two-channel measurements).  I'd really
like one that goes up to at least 10 MHz, and can do the same sorts of
stuff, especially display noise spectral density in different units on
different scales and perform frequency response testing easily.

There are a bunch of USB-style things, which might be okay as long as
they have Linux software available.

What I really want is a smallish boat anchor with two channels, 14-16
bit resolution, > 50 MS/s sampling, FFT analysis, a nice display, and
that can talk to USB sticks.

So my new-to-me HP 89441A analyzer is due to be here Tuesday. I noticed
that it doesn't have the serial cable--is it a regular straight-through
9-pin cable, or something weird?

The beast is currently sitting on my front porch, having been delivered
earlier today. The box weighs over 100 pounds, so I'll have to get DFH
to help move it. Probably nobody is going to steal it in the night.

Film at 11. ;)

Cheers

Phil Hobbs

Sheeesh! I have three different dolly types to cope with such, plus a
block-and-tackle... quite convenient when you're 78 ;-)

...Jim Thompson

I did this, at around age 60...

<http://www.analog-innovations.com/SED/BBQ_Project.pdf>

all by my lonesome... the lift-table is quite the nicest tool.

...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| STV, Queen Creek, AZ 85142 Skype: skypeanalog | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

It's what you learn, after you know it all, that counts.
 
On 02/26/2018 08:30 PM, Jim Thompson wrote:
On Mon, 26 Feb 2018 20:11:11 -0500, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/23/2018 02:15 PM, Phil Hobbs wrote:
On 02/16/2018 09:59 AM, Phil Hobbs wrote:
Hi, all,

I need another FFT analyzer.  I really like my HP 35660A, but it only
goes up to 100 kHz (50 kHz for two-channel measurements).  I'd really
like one that goes up to at least 10 MHz, and can do the same sorts of
stuff, especially display noise spectral density in different units on
different scales and perform frequency response testing easily.

There are a bunch of USB-style things, which might be okay as long as
they have Linux software available.

What I really want is a smallish boat anchor with two channels, 14-16
bit resolution, > 50 MS/s sampling, FFT analysis, a nice display, and
that can talk to USB sticks.

So my new-to-me HP 89441A analyzer is due to be here Tuesday. I noticed
that it doesn't have the serial cable--is it a regular straight-through
9-pin cable, or something weird?

The beast is currently sitting on my front porch, having been delivered
earlier today. The box weighs over 100 pounds, so I'll have to get DFH
to help move it. Probably nobody is going to steal it in the night.

Film at 11. ;)

Cheers

Phil Hobbs

Sheeesh! I have three different dolly types to cope with such, plus a
block-and-tackle... quite convenient when you're 78 ;-)

...Jim Thompson
I usually get stuff delivered to the house, because there's nearly
always somebody here. I'm generally at the lab during business hours,
but not always. So this beast will be going in DFH's truck tomorrow.

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
http://hobbs-eo.com
 
Phil Allison wrote:

----------------------
If I had to leave a light on and wanted safety, I would be thinking of
rolling my own low voltage LED light using an old style, approved mains
transformer, bridge, cap and linear regulator, all conservatively rated,
plus fuse and over temperature protection.

** Then one of these might do as well.

http://www.ikea.com/gb/en/products/lighting/light-bulbs-accessories/lunnom-led-bulb-e27-600-lumen-globe-clear-glass-art-70354564/


No inverter, 5w consumption, equals a 30W incandescent.



..... Phil
 
On 02/26/2018 08:38 PM, Jim Thompson wrote:
On Mon, 26 Feb 2018 18:30:16 -0700, Jim Thompson
To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

On Mon, 26 Feb 2018 20:11:11 -0500, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/23/2018 02:15 PM, Phil Hobbs wrote:
On 02/16/2018 09:59 AM, Phil Hobbs wrote:
Hi, all,

I need another FFT analyzer.  I really like my HP 35660A, but it only
goes up to 100 kHz (50 kHz for two-channel measurements).  I'd really
like one that goes up to at least 10 MHz, and can do the same sorts of
stuff, especially display noise spectral density in different units on
different scales and perform frequency response testing easily.

There are a bunch of USB-style things, which might be okay as long as
they have Linux software available.

What I really want is a smallish boat anchor with two channels, 14-16
bit resolution, > 50 MS/s sampling, FFT analysis, a nice display, and
that can talk to USB sticks.

So my new-to-me HP 89441A analyzer is due to be here Tuesday. I noticed
that it doesn't have the serial cable--is it a regular straight-through
9-pin cable, or something weird?

The beast is currently sitting on my front porch, having been delivered
earlier today. The box weighs over 100 pounds, so I'll have to get DFH
to help move it. Probably nobody is going to steal it in the night.

Film at 11. ;)

Cheers

Phil Hobbs

Sheeesh! I have three different dolly types to cope with such, plus a
block-and-tackle... quite convenient when you're 78 ;-)

...Jim Thompson

I did this, at around age 60...

http://www.analog-innovations.com/SED/BBQ_Project.pdf

all by my lonesome... the lift-table is quite the nicest tool.

The Harvard Over-40 Rowing Club once had some tee shirts made that said,
"The older we get, the better we were." ;)

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
http://hobbs-eo.com
 
On Monday, February 26, 2018 at 8:30:27 PM UTC-5, Jim Thompson wrote:
On Mon, 26 Feb 2018 20:11:11 -0500, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/23/2018 02:15 PM, Phil Hobbs wrote:
On 02/16/2018 09:59 AM, Phil Hobbs wrote:
Hi, all,

I need another FFT analyzer.  I really like my HP 35660A, but it only
goes up to 100 kHz (50 kHz for two-channel measurements).  I'd really
like one that goes up to at least 10 MHz, and can do the same sorts of
stuff, especially display noise spectral density in different units on
different scales and perform frequency response testing easily.

There are a bunch of USB-style things, which might be okay as long as
they have Linux software available.

What I really want is a smallish boat anchor with two channels, 14-16
bit resolution, > 50 MS/s sampling, FFT analysis, a nice display, and
that can talk to USB sticks.

So my new-to-me HP 89441A analyzer is due to be here Tuesday. I noticed
that it doesn't have the serial cable--is it a regular straight-through
9-pin cable, or something weird?

The beast is currently sitting on my front porch, having been delivered
earlier today. The box weighs over 100 pounds, so I'll have to get DFH
to help move it. Probably nobody is going to steal it in the night.

Film at 11. ;)

Cheers

Phil Hobbs

Sheeesh! I have three different dolly types to cope with such, plus a
block-and-tackle... quite convenient when you're 78 ;-)
Hydraulics... one use and you are spoiled for the rest of your life.
:^) GH

...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| STV, Queen Creek, AZ 85142 Skype: skypeanalog | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

It's what you learn, after you know it all, that counts.
 
On Mon, 26 Feb 2018 21:05:27 -0500, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/26/2018 08:38 PM, Jim Thompson wrote:
On Mon, 26 Feb 2018 18:30:16 -0700, Jim Thompson
To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

On Mon, 26 Feb 2018 20:11:11 -0500, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/23/2018 02:15 PM, Phil Hobbs wrote:
On 02/16/2018 09:59 AM, Phil Hobbs wrote:
Hi, all,

I need another FFT analyzer.  I really like my HP 35660A, but it only
goes up to 100 kHz (50 kHz for two-channel measurements).  I'd really
like one that goes up to at least 10 MHz, and can do the same sorts of
stuff, especially display noise spectral density in different units on
different scales and perform frequency response testing easily.

There are a bunch of USB-style things, which might be okay as long as
they have Linux software available.

What I really want is a smallish boat anchor with two channels, 14-16
bit resolution, > 50 MS/s sampling, FFT analysis, a nice display, and
that can talk to USB sticks.

So my new-to-me HP 89441A analyzer is due to be here Tuesday. I noticed
that it doesn't have the serial cable--is it a regular straight-through
9-pin cable, or something weird?

The beast is currently sitting on my front porch, having been delivered
earlier today. The box weighs over 100 pounds, so I'll have to get DFH
to help move it. Probably nobody is going to steal it in the night.

Film at 11. ;)

Cheers

Phil Hobbs

Sheeesh! I have three different dolly types to cope with such, plus a
block-and-tackle... quite convenient when you're 78 ;-)

...Jim Thompson

I did this, at around age 60...

http://www.analog-innovations.com/SED/BBQ_Project.pdf

all by my lonesome... the lift-table is quite the nicest tool.

The Harvard Over-40 Rowing Club once had some tee shirts made that said,
"The older we get, the better we were." ;)

Cheers

Phil Hobbs

Too soon, old... too late, smart. At my age "smart" outfoxes sore or
torn rotator cuffs.

...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| STV, Queen Creek, AZ 85142 Skype: skypeanalog | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

It's what you learn, after you know it all, that counts.
 
On Mon, 26 Feb 2018 18:06:12 -0800 (PST), George Herold
<gherold@teachspin.com> wrote:

On Monday, February 26, 2018 at 8:30:27 PM UTC-5, Jim Thompson wrote:
On Mon, 26 Feb 2018 20:11:11 -0500, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 02/23/2018 02:15 PM, Phil Hobbs wrote:
On 02/16/2018 09:59 AM, Phil Hobbs wrote:
Hi, all,

I need another FFT analyzer.  I really like my HP 35660A, but it only
goes up to 100 kHz (50 kHz for two-channel measurements).  I'd really
like one that goes up to at least 10 MHz, and can do the same sorts of
stuff, especially display noise spectral density in different units on
different scales and perform frequency response testing easily.

There are a bunch of USB-style things, which might be okay as long as
they have Linux software available.

What I really want is a smallish boat anchor with two channels, 14-16
bit resolution, > 50 MS/s sampling, FFT analysis, a nice display, and
that can talk to USB sticks.

So my new-to-me HP 89441A analyzer is due to be here Tuesday. I noticed
that it doesn't have the serial cable--is it a regular straight-through
9-pin cable, or something weird?

The beast is currently sitting on my front porch, having been delivered
earlier today. The box weighs over 100 pounds, so I'll have to get DFH
to help move it. Probably nobody is going to steal it in the night.

Film at 11. ;)

Cheers

Phil Hobbs

Sheeesh! I have three different dolly types to cope with such, plus a
block-and-tackle... quite convenient when you're 78 ;-)

Hydraulics... one use and you are spoiled for the rest of your life.
:^) GH

Yep, Hydraulics are your friend...

<http://www.analog-innovations.com/SED/BBQ_Project.pdf>

...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| STV, Queen Creek, AZ 85142 Skype: skypeanalog | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

It's what you learn, after you know it all, that counts.
 
On Sun, 25 Feb 2018 15:06:58 -0500, Neon John <no@never.com> wrote:

The solution, one that even you could probably achieve, is to run
fused power directly from the battery using 8 gauge wire and a couple
of relays. The relay coils are connected to the high and low beam
wires formerly leading to the bulbs. The contacts go between the
battery and fuse, through the NO contacts and then to the appropriate
filament.

This vehicle comes with relays already installed.....
 
On Mon, 26 Feb 2018 21:16:03 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

On Mon, 26 Feb 2018 18:06:12 -0800 (PST), George Herold
gherold@teachspin.com> wrote:
Hydraulics... one use and you are spoiled for the rest of your life.
:^) GH

Yep, Hydraulics are your friend...
http://www.analog-innovations.com/SED/BBQ_Project.pdf
...Jim Thompson

Muscle power is cheaper.

Personal forklift. No test equipment collector should be without one:
<http://4.bp.blogspot.com/_uuOo8x3WXWE/RnvztdIVNpI/AAAAAAAACA0/EBYvrnoag5k/s1600-h/human_forklift.jpg>
<http://www.soceadth.co.jp/index2.html>
<https://www.youtube.com/watch?v=NlLLEdXUEWY> (1:34)

--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
 
On Tue, 27 Feb 2018 11:53:51 +1000, Phil Allison <pallison49@gmail.com>
wrote:

Phil Allison wrote:

----------------------


If I had to leave a light on and wanted safety, I would be thinking of
rolling my own low voltage LED light using an old style, approved
mains
transformer, bridge, cap and linear regulator, all conservatively
rated,
plus fuse and over temperature protection.

** Then one of these might do as well.

http://www.ikea.com/gb/en/products/lighting/light-bulbs-accessories/lunnom-led-bulb-e27-600-lumen-globe-clear-glass-art-70354564/

No inverter, 5w consumption, equals a 30W incandescent.

.... Phil

That looks good, and non flammable. Just a question on the bulb glass or
plastic. Glass - fantastic! Plastic - probably OK too.


--
I look forward to the day when a chicken can cross the road without having
its motives questioned.
 
Paul wrote:
Robert Baer wrote:

Well, I just discovered yet another condition where you do NOT get
what you see on the screen.
Try printing to a PDF; text with NO regard to (source/screen) font
will be severely altered.
Seems there may be NO work-around, so documentation may be curtailed...

Try your Gerber Viewer application ?

Can it print ?

Do a Print To PDF from there ?

There's probably a ton of ways to do this,
some better than others.

You could even zoom into Eagle and do screen shots,
if you're truly desperate. As long as you're not
shipping the documentation to anyone, the file size
is irrelevant. If the doc is going to every customer,
then a bit more planning will be called for.

Vista or later probably has SnippingTool.exe for
taking screen shots. You don't have to use the
PrintScreen key any more :)

Paul
Seems the best way to document "what you get" which may NOT be "what
you see" is to use an independent Gerber viewer and print from there.

Screen shots are a PITA, because the screen resolution of about 98DPI
usually limits board area seen (gets the "jaggies" if "move out" too far).
Imagine maneuvering around, expanding 16 times then screen capture,
to get good-looking composite view of a PCB.
 
Johann Klammer wrote:
On 02/26/2018 09:16 AM, Robert Baer wrote:
Robert Baer wrote:
..since at least Eagle ver 5 if not earlier.
Did you know that the produced Gerbers in cases DO NOT reflect what
you see on the screen?

Now, someone pointed out that Gerbers are vector.
True,but that has noting to do with fonts or anything else except the
Gerber strokes as a collection, are supposed to represent the original:
a PCB pad, a logo scribble, Cyrilic font, Arabic font, or any other font
AS CREATED AND SEEN ON THE SCREEN.

MOST irritating is that any text in proportional font on the screen
is rendered as their vector font.

Next, that the (vector font) characters look stunted; most especially
the "R" looks as if its legs were sawed off.
The screen version is elegant; you will NOT get what you see.

Also, some of the vector font symbols are totally trashed, for
example the Registered Trademark symbol ÂŽ looks like a rotated "L" and
there is no replacement unless one wishes to construct one using a
circle and (at least on the screen) a "R"; result has the inelegant and
trashy looking vector font "R".

Such junk is not seen unless one uses an independent Gerber viewer.
**

Now, on occasion, a layer may "inherit" AND/OR "ghost" something from
another layer, and move the position as well.
In one particular case, (so to speak) without asking, a text got
solder-masked (the "ghost" because i never saw it since i do not bother
turning that layer on). And that solder mask was (o be polite)
mis-positioned.
At the same time, a placed circle (layer 1 Top, made for no hole in
center) got duplicated in layer 30 Bstop and position was changed (here
is the "ghosting").
Furthermore, that layer 1 circle got duplicated in layer 290 Tstop
and the position was ALSO changed.
The result was a total mess
**
SO, VERY carefully review ALL layers on the screen at minimum and fix
as needed.
Use a Gerber viewer to double-check the results, especially fonts.

Naturally, because a rich owner of Eagle has decided to also be
greedy, expect these problems WILL NEVER be fixed.
Well, I just discovered yet another condition where you do NOT get what you see on the screen.
Try printing to a PDF; text with NO regard to (source/screen) font will be severely altered.
Seems there may be NO work-around, so documentation may be curtailed...



I've been writing a gerber parser lately and thus researched the topic a bit.
There's a line type that eagle and ossibly other tools produce that's not in ucamcos standard.
namely line type 22. there are some in the gerbv testcases (am-test.gbr).
There may also be some bugs in some renderers with respect to overlapping primitives ending up wrong.
You might need a veryfing Gerber parser or sthg...
So you were able to find undocumented fonts (line type 22?) that one
cannot use?
What i complained about is seen by various Gerber viewers and thus
from Eagle.
Hell, there is inconsistency *IN* Eagle, most especially with
characters/symbols/glyphs in Eagle fonts.
Try the registered trademark symbol as i previously noted.
Even the "work-around" using a circle and an "R" gets munged because
their "proportional font" gets transformed to their "vector font" which
gets transformed from "see" mode to Gerber mode; ALSO different that
using their print option to a PDF printer.
 
On 02/28/2018 03:15 AM, Robert Baer wrote:
So you were able to find undocumented fonts (line type 22?) that one cannot use?
What i complained about is seen by various Gerber viewers and thus from Eagle.
Hell, there is inconsistency *IN* Eagle, most especially with characters/symbols/glyphs in Eagle fonts.
Try the registered trademark symbol as i previously noted.
Even the "work-around" using a circle and an "R" gets munged because their "proportional font" gets transformed to their "vector font" which gets transformed from "see" mode to Gerber mode; ALSO different that using their print option to a PDF printer.
No that was just one way to draw a line (macro primitive) that isn't in the Specification.
<https://www.ucamco.com/en/file-formats/gerber/downloads>
(the first entry)
Sec 4.5.4.1

Gerber does not know any fonts at all.
Everything is composed of circular arcs and lines. (contours and strokes)
You should always be using the stroked font. It's likely internal to eagle anyway.
Also not surprising they don't have your TM. probably no linear b glyps either.
 
On 02/23/2018 03:21 PM, Gerhard Hoffmann wrote:
Am 23.02.2018 um 20:15 schrieb Phil Hobbs:

So my new-to-me HP 89441A analyzer is due to be here Tuesday.  I noticed
that it doesn't have the serial cable--is it a regular straight-through
9-pin cable, or something weird?

I also had to make the cable myself.
It wasn't much work, and it is known how to do it.

Yeah, it's just a straight-through D-9 as it turns out.

I see what you mean by "1/f challenged"--it's about 7 nV/sqrt(Hz) in the
flatband, but 100 nV/sqrt(Hz) at 1 kHz, which is about where it flattens
out. The corner seems to be about 26 kHz, which isn't great.

However, with a decent preamp it'll be a great advance over analogue RF
spectrum analyzers and scope FFTs.

I'm looking forward to trying out that code that you kindly sent me.

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
http://hobbs-eo.com
 
On 02/25/2018 02:42 PM, Neon John wrote:
On Tue, 20 Feb 2018 00:31:52 -0500, bitrex
bitrex@de.lete.earthlink.net> wrote:


What's the point of leaving an interior light on when one's away from
home at all? Tryin' to help the thieves see better? It doesn't fool
anybody and just lets 'em know you probably don't have a real security
system.

The only reason is that I want them on.

As far as any bad guys go, we're an hour away from the Sheriff's
office so we take care of things ourselves. We have a radio net and
most of us have night vision equip.

If a bad guy comes up my lane to the apparently darkened outside of my
cabin, his first worry is my neighbors competing to get off the first
shot.

Our places are very brightly illuminated but with IR. Helps the night
vision stuff work better.

If he manages to get into my house, he's in for a VERY unpleasant
surprise. Multiple unpleasant surprises, actually. He'll live, but
just barely.

John
John DeArmond
http://www.neon-john.com
http://www.tnduction.com
Tellico Plains, Occupied TN
See website for email address

Your home probably isn't a very likely target, anyway. Random burglars
come in two types, idiots and professionals. The idiots are just after a
quick score for dope money, they prefer to steal FedEx packages off the
front stoop if at all possible. If they absolutely have to break in best
that the target item of their theft is in plain sight in an illuminated
room thru a window and there's a waiting car parked out front five
seconds away.

Darkened home down a country lane where it's impossible to scout the
situation? Fuck that, I'll go someplace easier.

Professionals, who are few, target the homes of the wealthy.

The third category is someone who knows you/personal enemy where the
theft is a secondary concern to the "revenge thing." That's happened
once in my life to a friend of mine many years ago. They get what's
comin' to 'em, I suppose.
 
On 03/01/2018 08:12 AM, bitrex wrote:
On 02/25/2018 02:42 PM, Neon John wrote:
On Tue, 20 Feb 2018 00:31:52 -0500, bitrex
bitrex@de.lete.earthlink.net> wrote:


What's the point of leaving an interior light on when one's away from
home at all? Tryin' to help the thieves see better? It doesn't fool
anybody and just lets 'em know you probably don't have a real security
system.

The only reason is that I want them on.

As far as any bad guys go, we're an hour away from the Sheriff's
office so we take care of things ourselves.  We have a radio net and
most of us have night vision equip.

If a bad guy comes up my lane to the apparently darkened outside of my
cabin, his first worry is my neighbors competing to get off the first
shot.

Our places are very brightly illuminated but with IR.  Helps the night
vision stuff work better.

If he manages to get into my house, he's in for a VERY unpleasant
surprise.  Multiple unpleasant surprises, actually.  He'll live, but
just barely.

John
John DeArmond
http://www.neon-john.com
http://www.tnduction.com
Tellico Plains, Occupied TN
See website for email address


Your home probably isn't a very likely target, anyway. Random burglars
come in two types, idiots and professionals. The idiots are just after a
quick score for dope money, they prefer to steal FedEx packages off the
front stoop if at all possible. If they absolutely have to break in best
that the target item of their theft is in plain sight in an illuminated
room thru a window and there's a waiting car parked out front five
seconds away.

Darkened home down a country lane where it's impossible to scout the
situation? Fuck that, I'll go someplace easier.

Professionals, who are few, target the homes of the wealthy.

The third category is someone who knows you/personal enemy where the
theft is a secondary concern to the "revenge thing." That's happened
once in my life to a friend of mine many years ago. They get what's
comin' to 'em, I suppose.

Heard of that happening to a friend once in my life, rather.
 
On 08/09/2017 04:24 PM, Joerg wrote:
While I know that our US phone system is beginning to unravel this is
new: A fuel supplier (Suburban Propane) sent me two emails to accounts
at two different providers. No bounce message on their side, nothing has
arrived, nothing in the spam folder either. So I called and sent one to
them. No bounce message back to me yet it did not arrive either. All
those emails quietly went phut.

Does anyone know what could cause that?

Lots of outfits don't send bounce messages.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net
http://electrooptical.net
 

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