dangerous profession...

[server]

On Mon, 5 Oct 2020 21:37:08 -0400, bitrex <user@example.net> wrote:

On 10/5/2020 1:53 PM, John Larkin wrote:
On Sat, 3 Oct 2020 11:29:28 -0400, bitrex <user@example.net> wrote:

On 10/3/2020 10:49 AM, jlarkin@highlandsniptechnology.com wrote:
On Fri, 2 Oct 2020 22:10:30 -0700, Joerg <news@analogconsultants.com
wrote:

On 10/2/20 4:42 PM, John Larkin wrote:
On Fri, 2 Oct 2020 13:14:58 -0700, Joerg <news@analogconsultants.com
wrote:

On 10/1/20 9:30 AM, jlarkin@highlandsniptechnology.com wrote:

[...]

https://www.dropbox.com/s/uf15erm1nj3tjjk/Colpitts_125.JPG?raw=1

There are varicaps and things too. Everything affects the tempco. I
can tune C4 to zap the 1st order term.

Worst case, every batch of PCBs could have a different value of C4.
Production would *not* like that.


Whenever I had something like that I\'d always use a varicap and some
sort of algorithm. The production guys didn\'t even have to know it was
there.

My oscillator has a varicap, part of the PLL. Of course, a varicap has
a tempco the varies with the applied voltage!


Yeah, another error term and probably non-linear.


Of course, there is the other option of running the whole board in
transformer oil

Smile when you say that.

It\'s impressive how isothermal a 10-layer board can be. Lots of
copper!

We need to rev the board, so I could add heater resistors and a
dedicated temp sensor under the oscillator. With luck, we\'d never have
to use them. Depends on whether my tempco tuning is reproducible in
production.

Another reason to spin the layout: I was having time-delay jitter
going through one FPGA, synchronous to a switcher in the opposite
corner of the board. I couldn\'t understand that, so I disabled the
switcher with some difficulty and hacked in a linear reg. That fixed
it.


We\'ve had similar effects in pulsed Doppler ultrasound systems. Those
are like a princess on the pea when it comes to jitter on any of the
clocks. What I sometimes did is run a coax or (after relayout) a trace
over to the oscillator or stage that was affected and coupled in
opposite phase via a sub-pF ceramic cap. The guys usually thought that
was voodoo but it worked reliably and most of all repeatably so
production didnt have to worry about it.


A real pain to do. I had to drill out some vias to disable the
switcher.

https://www.dropbox.com/s/ghu5rid4ks0bbfl/1v8_Hack.jpg?raw=1

https://www.dropbox.com/s/g4llhvgq38cqedh/1v8_hack_Jitter.jpg?raw=1

Much of that jitter is probably from the scope.


Do you have a before-after comparison?

I don\'t have a good \"before\" pic handy. P-P jitter was about 2x what
it is now.

I noticed that the jitter would squirm as a function of trigger rate.
The heterodyne frequency corresponded exactly to the switching
frequency of one of the LTM8078 switchers (which are themselves
remarkably frequency stable.) It was the 1.8 volt Vcc_aux power supply
to two FPGAs, one directly in the delay path.

I doubt that Vcc_aux affects prop delay much; it doesn\'t for DC
changes. It may do nasty capacitive things inside the chip.

This Xilinx chip is very sensitive to core voltage, like -5 or -10 ps
per millivolt.

The whole front end of this box could have been ECL, but that takes a
lot of room and power and dollars.

My goal is to make a delay generator with 1 ps RMS jitter. I can
probably get below 5.

We\'ll announce this soon.

https://www.dropbox.com/s/j3fycoyhpus0vpc/a4.jpg?raw=1


Thank u for keeping in mind that 10-12% of the adult male population is
color-blind and that labels on heavily-used buttons wear off

The LCD is black on white. Each button is single color backlit with
obvious text.

You\'re straining to disapprove of a beautiful box. Why?

?????

You\'d better not buy one.



No I was actually thanking you

Oh, I thought you were being sardonic. Or halfway sardonic. It\'s hard
to tell.

The text on the buttons is ink-jet printed on silicone. That might
wear off.



--

John Larkin Highland Technology, Inc

Science teaches us to doubt.

Claude Bernard

 

[server]

On Mon, 5 Oct 2020 21:13:18 -0400, bitrex <user@example.net> wrote:

On 10/5/2020 2:04 PM, John Larkin wrote:
On Sat, 3 Oct 2020 23:27:35 +0000 (UTC), David Lesher
wb8foz@panix.com> wrote:

jlarkin@highlandsniptechnology.com writes:


In the last week, I\'ve been burned 6 times, shocked once, punctured
(with blood) twice, and had to eat a single burger for three lunches
in a row. And we are out of ice cream sandwiches.

Speaking of \"out of..\".
https://youtu.be/Du5YK5FnyF4


Shooting and killing and explosions and hatred is mostly what
Hollywood does nowadays, while preaching gun control and peace and
love.

Almost like they\'ve learned that overestimating American\'s intelligence
is rarely profitable.

Most of the cartoon superhero movies are sold overseas.

That is to say they know their market.

Or China\'s for that matter, which will soon make up the bulk of
Hollywood\'s market, if it hasn\'t already. Much English-language nuance
doesn\'t translate well to Mandarin. Kind of like telling jokes to engineers

Violence is the universal language.

I\'d expect that romantic comedies don\'t sell well in very different
cultures.



--

John Larkin Highland Technology, Inc

Science teaches us to doubt.

Claude Bernard

 

[Jim MacArthur]

My Rigol scope for example uses one button called START/STOP to start
and stop and uses a green/red LED to indicate which mode it\'s in

10-12% of the adult male population is color blind with red/green the
most common!

And the number is higher when the group self-selects, e.g. musicians. When bi-color LEDs came out, we thought it would be the coolest thing to add them to our audio fx processors. Green means you have a good signal, red means clipping. By chance, none of our beta testers were colorblind, but > 15% of our customers were, and they really raked us across the coals for that one.

 

[bitrex]

On 10/5/2020 9:54 PM, jlarkin@highlandsniptechnology.com wrote:

On Mon, 5 Oct 2020 21:37:08 -0400, bitrex <user@example.net> wrote:

On 10/5/2020 1:53 PM, John Larkin wrote:
On Sat, 3 Oct 2020 11:29:28 -0400, bitrex <user@example.net> wrote:

On 10/3/2020 10:49 AM, jlarkin@highlandsniptechnology.com wrote:
On Fri, 2 Oct 2020 22:10:30 -0700, Joerg <news@analogconsultants.com
wrote:

On 10/2/20 4:42 PM, John Larkin wrote:
On Fri, 2 Oct 2020 13:14:58 -0700, Joerg <news@analogconsultants.com
wrote:

On 10/1/20 9:30 AM, jlarkin@highlandsniptechnology.com wrote:

[...]

https://www.dropbox.com/s/uf15erm1nj3tjjk/Colpitts_125.JPG?raw=1

There are varicaps and things too. Everything affects the tempco. I
can tune C4 to zap the 1st order term.

Worst case, every batch of PCBs could have a different value of C4.
Production would *not* like that.


Whenever I had something like that I\'d always use a varicap and some
sort of algorithm. The production guys didn\'t even have to know it was
there.

My oscillator has a varicap, part of the PLL. Of course, a varicap has
a tempco the varies with the applied voltage!


Yeah, another error term and probably non-linear.


Of course, there is the other option of running the whole board in
transformer oil

Smile when you say that.

It\'s impressive how isothermal a 10-layer board can be. Lots of
copper!

We need to rev the board, so I could add heater resistors and a
dedicated temp sensor under the oscillator. With luck, we\'d never have
to use them. Depends on whether my tempco tuning is reproducible in
production.

Another reason to spin the layout: I was having time-delay jitter
going through one FPGA, synchronous to a switcher in the opposite
corner of the board. I couldn\'t understand that, so I disabled the
switcher with some difficulty and hacked in a linear reg. That fixed
it.


We\'ve had similar effects in pulsed Doppler ultrasound systems. Those
are like a princess on the pea when it comes to jitter on any of the
clocks. What I sometimes did is run a coax or (after relayout) a trace
over to the oscillator or stage that was affected and coupled in
opposite phase via a sub-pF ceramic cap. The guys usually thought that
was voodoo but it worked reliably and most of all repeatably so
production didnt have to worry about it.


A real pain to do. I had to drill out some vias to disable the
switcher.

https://www.dropbox.com/s/ghu5rid4ks0bbfl/1v8_Hack.jpg?raw=1

https://www.dropbox.com/s/g4llhvgq38cqedh/1v8_hack_Jitter.jpg?raw=1

Much of that jitter is probably from the scope.


Do you have a before-after comparison?

I don\'t have a good \"before\" pic handy. P-P jitter was about 2x what
it is now.

I noticed that the jitter would squirm as a function of trigger rate.
The heterodyne frequency corresponded exactly to the switching
frequency of one of the LTM8078 switchers (which are themselves
remarkably frequency stable.) It was the 1.8 volt Vcc_aux power supply
to two FPGAs, one directly in the delay path.

I doubt that Vcc_aux affects prop delay much; it doesn\'t for DC
changes. It may do nasty capacitive things inside the chip.

This Xilinx chip is very sensitive to core voltage, like -5 or -10 ps
per millivolt.

The whole front end of this box could have been ECL, but that takes a
lot of room and power and dollars.

My goal is to make a delay generator with 1 ps RMS jitter. I can
probably get below 5.

We\'ll announce this soon.

https://www.dropbox.com/s/j3fycoyhpus0vpc/a4.jpg?raw=1


Thank u for keeping in mind that 10-12% of the adult male population is
color-blind and that labels on heavily-used buttons wear off

The LCD is black on white. Each button is single color backlit with
obvious text.

You\'re straining to disapprove of a beautiful box. Why?

?????

You\'d better not buy one.



No I was actually thanking you

Oh, I thought you were being sardonic. Or halfway sardonic. It\'s hard
to tell.

The text on the buttons is ink-jet printed on silicone. That might
wear off.

RUN and STOP will probably wear off before anything else so making it
say RATE/STOP should help defer any key-swaps for many years.

The printing on my car\'s start button is already wearing off it\'s been
less than 4 years, couldn\'t they emboss it or something? Chevrolet cheap
bastards

 

[bitrex]

On 10/5/2020 9:59 PM, Jim MacArthur wrote:

My Rigol scope for example uses one button called START/STOP to start
and stop and uses a green/red LED to indicate which mode it\'s in

10-12% of the adult male population is color blind with red/green the
most common!

And the number is higher when the group self-selects, e.g. musicians. When bi-color LEDs came out, we thought it would be the coolest thing to add them to our audio fx processors. Green means you have a good signal, red means clipping. By chance, none of our beta testers were colorblind, but > 15% of our customers were, and they really raked us across the coals for that one.

If you already have a peak-detect signal an LM33 quad comparator plus 4
LEDs to make a lil bar-graph with like -20, -10, -6, and clip labeled
maybe isn\'t ideal but don\'t break the bank.

 

[bitrex]

On 10/6/2020 6:22 PM, bitrex wrote:

On 10/5/2020 9:59 PM, Jim MacArthur wrote:

My Rigol scope for example uses one button called START/STOP to start
and stop and uses a green/red LED to indicate which mode it\'s in

10-12% of the adult male population is color blind with red/green the
most common!

And the number is higher when the group self-selects, e.g. musicians.
When bi-color LEDs came out, we thought it would be the coolest thing
to add them to our audio fx processors.  Green means you have a good
signal, red means clipping.  By chance, none of our beta testers were
colorblind, but > 15% of our customers were, and they really raked us
across the coals for that one.


If you already have a peak-detect signal an LM33 quad comparator plus 4
LEDs to make a lil bar-graph with like -20, -10, -6, and clip labeled
maybe isn\'t ideal but don\'t break the bank.

LM339 rather

 

[bitrex]

On 10/6/2020 6:22 PM, bitrex wrote:

On 10/5/2020 9:59 PM, Jim MacArthur wrote:

My Rigol scope for example uses one button called START/STOP to start
and stop and uses a green/red LED to indicate which mode it\'s in

10-12% of the adult male population is color blind with red/green the
most common!

And the number is higher when the group self-selects, e.g. musicians.
When bi-color LEDs came out, we thought it would be the coolest thing
to add them to our audio fx processors.  Green means you have a good
signal, red means clipping.  By chance, none of our beta testers were
colorblind, but > 15% of our customers were, and they really raked us
across the coals for that one.


If you already have a peak-detect signal an LM33 quad comparator plus 4
LEDs to make a lil bar-graph with like -20, -10, -6, and clip labeled
maybe isn\'t ideal but don\'t break the bank.

Or -20, 0, +6, and clip if the processor is analog and there\'s some
headroom.

 

[Tabby]

On Monday, 5 October 2020 18:59:39 UTC+1, John Larkin wrote:

On Sun, 4 Oct 2020 17:05:41 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2020-10-03 23:58, jlarkin@highlandsniptechnology.com wrote:
On Sat, 3 Oct 2020 20:03:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2020-10-03 10:49, jlarkin@highlandsniptechnology.com wrote:
On Fri, 2 Oct 2020 22:10:30 -0700, Joerg <news@analogconsultants.com
wrote:

On 10/2/20 4:42 PM, John Larkin wrote:
On Fri, 2 Oct 2020 13:14:58 -0700, Joerg <news@analogconsultants.com
wrote:

On 10/1/20 9:30 AM, jlarkin@highlandsniptechnology.com wrote:

[...]

https://www.dropbox.com/s/uf15erm1nj3tjjk/Colpitts_125.JPG?raw=1

There are varicaps and things too. Everything affects the tempco. I
can tune C4 to zap the 1st order term.

Worst case, every batch of PCBs could have a different value of C4.
Production would *not* like that.


Whenever I had something like that I\'d always use a varicap and some
sort of algorithm. The production guys didn\'t even have to know it was
there.

My oscillator has a varicap, part of the PLL. Of course, a varicap has
a tempco the varies with the applied voltage!


Yeah, another error term and probably non-linear.


Of course, there is the other option of running the whole board in
transformer oil

Smile when you say that.

It\'s impressive how isothermal a 10-layer board can be. Lots of
copper!

We need to rev the board, so I could add heater resistors and a
dedicated temp sensor under the oscillator. With luck, we\'d never have
to use them. Depends on whether my tempco tuning is reproducible in
production.

Another reason to spin the layout: I was having time-delay jitter
going through one FPGA, synchronous to a switcher in the opposite
corner of the board. I couldn\'t understand that, so I disabled the
switcher with some difficulty and hacked in a linear reg. That fixed
it.


We\'ve had similar effects in pulsed Doppler ultrasound systems. Those
are like a princess on the pea when it comes to jitter on any of the
clocks. What I sometimes did is run a coax or (after relayout) a trace
over to the oscillator or stage that was affected and coupled in
opposite phase via a sub-pF ceramic cap. The guys usually thought that
was voodoo but it worked reliably and most of all repeatably so
production didnt have to worry about it.


A real pain to do. I had to drill out some vias to disable the
switcher.

https://www.dropbox.com/s/ghu5rid4ks0bbfl/1v8_Hack.jpg?raw=1

https://www.dropbox.com/s/g4llhvgq38cqedh/1v8_hack_Jitter.jpg?raw=1

Much of that jitter is probably from the scope.


Do you have a before-after comparison?

I don\'t have a good \"before\" pic handy. P-P jitter was about 2x what
it is now.

I noticed that the jitter would squirm as a function of trigger rate.
The heterodyne frequency corresponded exactly to the switching
frequency of one of the LTM8078 switchers (which are themselves
remarkably frequency stable.) It was the 1.8 volt Vcc_aux power supply
to two FPGAs, one directly in the delay path.

I doubt that Vcc_aux affects prop delay much; it doesn\'t for DC
changes. It may do nasty capacitive things inside the chip.

This Xilinx chip is very sensitive to core voltage, like -5 or -10 ps
per millivolt.

The whole front end of this box could have been ECL, but that takes a
lot of room and power and dollars.

My goal is to make a delay generator with 1 ps RMS jitter. I can
probably get below 5.

We\'ll announce this soon.

https://www.dropbox.com/s/j3fycoyhpus0vpc/a4.jpg?raw=1

Cool. I\'ve long used the P400 very happily as you know.


I\'ll send you a P500.

Looking forward to trying it out! We\'re planning to use the P400 to
calibrate a time-stretcher for geophysical lidar, where you want many
samples in a short time but the rep rate is slow. We\'d certainly use
the swoopy new one if it gets here in the next couple of months.

I\'m especially happy with the GaN output stage. Vhigh can go from -5
to +20, and Vlow +-5, very clean all the way. If I showed you the
circuit, you\'d laugh and say \"that can\'t work.\"

I feel that way about some of your other circuits too. Fortunately I
know enough not to start a fight when the data goes the other way.


We\'re curently implementing the \"trains and frames\" option. A \"train\"
is a series of programmable pulses on all channels, after a trigger.
\"Frames\" is a series of timing settings that change every trigger.
They can be combined.

Our problem isn\'t so much how to implement it, but how to explain it
to users and provide them a language to program it. We don\'t want a
zillion emails and phone calls from grad students or whoever.

user forum


NT

 

[bitrex]

On 10/5/2020 9:58 PM, jlarkin@highlandsniptechnology.com wrote:

On Mon, 5 Oct 2020 21:13:18 -0400, bitrex <user@example.net> wrote:

On 10/5/2020 2:04 PM, John Larkin wrote:
On Sat, 3 Oct 2020 23:27:35 +0000 (UTC), David Lesher
wb8foz@panix.com> wrote:

jlarkin@highlandsniptechnology.com writes:


In the last week, I\'ve been burned 6 times, shocked once, punctured
(with blood) twice, and had to eat a single burger for three lunches
in a row. And we are out of ice cream sandwiches.

Speaking of \"out of..\".
https://youtu.be/Du5YK5FnyF4


Shooting and killing and explosions and hatred is mostly what
Hollywood does nowadays, while preaching gun control and peace and
love.

Almost like they\'ve learned that overestimating American\'s intelligence
is rarely profitable.

Most of the cartoon superhero movies are sold overseas.

They\'re often mediocre sellers in the US but make billions worldwide,
probably has something to do why that crank out fifteen in a row.

That is to say they know their market.

Or China\'s for that matter, which will soon make up the bulk of
Hollywood\'s market, if it hasn\'t already. Much English-language nuance
doesn\'t translate well to Mandarin. Kind of like telling jokes to engineers

Violence is the universal language.

I\'d expect that romantic comedies don\'t sell well in very different
cultures.

Hollywood-movie ticket-sales have been going down domestically for
years, even before covid-19, more Americans have been turning to
Netflix, Hulu, HBO etc. who now have their own production studios and
found that you can make a decent buck spending moderate sums of money on
several niche productions catering to the long-tails to watch at home,
instead of trying to please everyone with blockbusters.

That is to say Hollywood has more domestic competition, now.

but the most common fate of most Hollywood films both good and trash
alike is they\'re simply forgotten, like a lot of people remember Jeff
Bridges performance in the late 90s screwball-comedy \"The Big Lewbowski\"
but very few remember him from the early 90s film \"Fearless\" (loosely
based on the crash of United flight 232) that was called \"the best
performance of his career\"

<https://en.wikipedia.org/wiki/Fearless_(1993_film)>

 

[server]

On Thu, 8 Oct 2020 14:33:09 -0700 (PDT), Tabby <tabbypurr@gmail.com>
wrote:

On Monday, 5 October 2020 18:59:39 UTC+1, John Larkin wrote:
On Sun, 4 Oct 2020 17:05:41 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2020-10-03 23:58, jlarkin@highlandsniptechnology.com wrote:
On Sat, 3 Oct 2020 20:03:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2020-10-03 10:49, jlarkin@highlandsniptechnology.com wrote:
On Fri, 2 Oct 2020 22:10:30 -0700, Joerg <news@analogconsultants.com
wrote:

On 10/2/20 4:42 PM, John Larkin wrote:
On Fri, 2 Oct 2020 13:14:58 -0700, Joerg <news@analogconsultants.com
wrote:

On 10/1/20 9:30 AM, jlarkin@highlandsniptechnology.com wrote:

[...]

https://www.dropbox.com/s/uf15erm1nj3tjjk/Colpitts_125.JPG?raw=1

There are varicaps and things too. Everything affects the tempco. I
can tune C4 to zap the 1st order term.

Worst case, every batch of PCBs could have a different value of C4.
Production would *not* like that.


Whenever I had something like that I\'d always use a varicap and some
sort of algorithm. The production guys didn\'t even have to know it was
there.

My oscillator has a varicap, part of the PLL. Of course, a varicap has
a tempco the varies with the applied voltage!


Yeah, another error term and probably non-linear.


Of course, there is the other option of running the whole board in
transformer oil

Smile when you say that.

It\'s impressive how isothermal a 10-layer board can be. Lots of
copper!

We need to rev the board, so I could add heater resistors and a
dedicated temp sensor under the oscillator. With luck, we\'d never have
to use them. Depends on whether my tempco tuning is reproducible in
production.

Another reason to spin the layout: I was having time-delay jitter
going through one FPGA, synchronous to a switcher in the opposite
corner of the board. I couldn\'t understand that, so I disabled the
switcher with some difficulty and hacked in a linear reg. That fixed
it.


We\'ve had similar effects in pulsed Doppler ultrasound systems. Those
are like a princess on the pea when it comes to jitter on any of the
clocks. What I sometimes did is run a coax or (after relayout) a trace
over to the oscillator or stage that was affected and coupled in
opposite phase via a sub-pF ceramic cap. The guys usually thought that
was voodoo but it worked reliably and most of all repeatably so
production didnt have to worry about it.


A real pain to do. I had to drill out some vias to disable the
switcher.

https://www.dropbox.com/s/ghu5rid4ks0bbfl/1v8_Hack.jpg?raw=1

https://www.dropbox.com/s/g4llhvgq38cqedh/1v8_hack_Jitter.jpg?raw=1

Much of that jitter is probably from the scope.


Do you have a before-after comparison?

I don\'t have a good \"before\" pic handy. P-P jitter was about 2x what
it is now.

I noticed that the jitter would squirm as a function of trigger rate.
The heterodyne frequency corresponded exactly to the switching
frequency of one of the LTM8078 switchers (which are themselves
remarkably frequency stable.) It was the 1.8 volt Vcc_aux power supply
to two FPGAs, one directly in the delay path.

I doubt that Vcc_aux affects prop delay much; it doesn\'t for DC
changes. It may do nasty capacitive things inside the chip.

This Xilinx chip is very sensitive to core voltage, like -5 or -10 ps
per millivolt.

The whole front end of this box could have been ECL, but that takes a
lot of room and power and dollars.

My goal is to make a delay generator with 1 ps RMS jitter. I can
probably get below 5.

We\'ll announce this soon.

https://www.dropbox.com/s/j3fycoyhpus0vpc/a4.jpg?raw=1

Cool. I\'ve long used the P400 very happily as you know.


I\'ll send you a P500.

Looking forward to trying it out! We\'re planning to use the P400 to
calibrate a time-stretcher for geophysical lidar, where you want many
samples in a short time but the rep rate is slow. We\'d certainly use
the swoopy new one if it gets here in the next couple of months.

I\'m especially happy with the GaN output stage. Vhigh can go from -5
to +20, and Vlow +-5, very clean all the way. If I showed you the
circuit, you\'d laugh and say \"that can\'t work.\"

I feel that way about some of your other circuits too. Fortunately I
know enough not to start a fight when the data goes the other way.


We\'re curently implementing the \"trains and frames\" option. A \"train\"
is a series of programmable pulses on all channels, after a trigger.
\"Frames\" is a series of timing settings that change every trigger.
They can be combined.

Our problem isn\'t so much how to implement it, but how to explain it
to users and provide them a language to program it. We don\'t want a
zillion emails and phone calls from grad students or whoever.

user forum


NT

Ah. Let people who don\'t understand it ask for help from people who
don\'t understand it.



--

John Larkin Highland Technology, Inc

Science teaches us to doubt.

Claude Bernard

 

[Phil Hobbs]

On 2020-10-08 22:13, jlarkin@highlandsniptechnology.com wrote:

On Thu, 8 Oct 2020 14:33:09 -0700 (PDT), Tabby <tabbypurr@gmail.com
wrote:

sniiiiip
On Monday, 5 October 2020 18:59:39 UTC+1, John Larkin wrote:
Our problem isn\'t so much how to implement it, but how to explain it
to users and provide them a language to program it. We don\'t want a
zillion emails and phone calls from grad students or whoever.

user forum


NT

Ah. Let people who don\'t understand it ask for help from people who
don\'t understand it.

They work cheap though!

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

 

[Tabby]

On Friday, 9 October 2020 03:14:01 UTC+1, jla...@highlandsniptechnology.com wrote:

On Thu, 8 Oct 2020 14:33:09 -0700 (PDT), Tabby <tabbypurr
wrote:
On Monday, 5 October 2020 18:59:39 UTC+1, John Larkin wrote:

Our problem isn\'t so much how to implement it, but how to explain it
to users and provide them a language to program it. We don\'t want a
zillion emails and phone calls from grad students or whoever.

user forum


NT

Ah. Let people who don\'t understand it ask for help from people who
don\'t understand it.

It does work. It much reduces your workload responding. (If you have to, staff could reply initially, but usually not required.) It also provides feedback, including what users would like to see next time round.


NT