https://www.ebay.com/itm/266499095322

It's 49% off! And even more off from the original price.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On a sunny day (Fri, 13 Sep 2024 09:11:52 -0700) it happened john larkin <JL@gct.com> wrote in <uqo8ej5a4nae7qj1m3uij37q67mb5ho75u@4ax.com>:

https://www.ebay.com/itm/266499095322

It's 49% off! And even more off from the original price.

What does it do?

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

Jan Panteltje <alien@comet.invalid> wrote:

On a sunny day (Fri, 13 Sep 2024 09:11:52 -0700) it happened john larkin <JL@gct.com> wrote in <uqo8ej5a4nae7qj1m3uij37q67mb5ho75u@4ax.com>:

https://www.ebay.com/itm/266499095322

It's 49% off! And even more off from the original price.

What does it do?

Modulates, what else? :)

---
******************************************************************
* KSI@home KOI8 Net < > The impossible we do immediately. *
* Las Vegas NV, USA < > Miracles require 24-hour notice. * ******************************************************************

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On a sunny day (Sat, 14 Sep 2024 07:48:24 -0000 (UTC)) it happened Sergey Kubushyn <ksi@koi8.net> wrote in <vc3f48$1c1ie$1@dont-email.me>:

Jan Panteltje <alien@comet.invalid> wrote:

On a sunny day (Fri, 13 Sep 2024 09:11:52 -0700) it happened john larkin
<JL@gct.com> wrote in <uqo8ej5a4nae7qj1m3uij37q67mb5ho75u@4ax.com>:

https://www.ebay.com/itm/266499095322

It's 49% off! And even more off from the original price.

What does it do?

Modulates, what else? :)

Ah, the stuff that modul ates!
Probably fast food...

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Sat, 14 Sep 2024 05:56:24 GMT, Jan Panteltje <alien@comet.invalid>
wrote:

On a sunny day (Fri, 13 Sep 2024 09:11:52 -0700) it happened john larkin ><JL@gct.com> wrote in <uqo8ej5a4nae7qj1m3uij37q67mb5ho75u@4ax.com>:

https://www.ebay.com/itm/266499095322

It's 49% off! And even more off from the original price.

What does it do?

It's a box.

If you've got a modulator, you can stick it inside theah.

RL

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Sat, 14 Sep 2024 08:33:28 -0400, legg wrote:

On Sat, 14 Sep 2024 05:56:24 GMT, Jan Panteltje <alien@comet.invalid>
wrote:

On a sunny day (Fri, 13 Sep 2024 09:11:52 -0700) it happened john larkin >><JL@gct.com> wrote in <uqo8ej5a4nae7qj1m3uij37q67mb5ho75u@4ax.com>:

https://www.ebay.com/itm/266499095322

It's 49% off! And even more off from the original price.

What does it do?

It's a box.

If you've got a modulator, you can stick it inside theah.

Well, thanks for clearing that up.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Sat, 14 Sep 2024 05:56:24 GMT, Jan Panteltje <alien@comet.invalid>
wrote:

On a sunny day (Fri, 13 Sep 2024 09:11:52 -0700) it happened john larkin ><JL@gct.com> wrote in <uqo8ej5a4nae7qj1m3uij37q67mb5ho75u@4ax.com>:

https://www.ebay.com/itm/266499095322

It's 49% off! And even more off from the original price.

What does it do?

Generates an arbitrary waveform when triggered, and drives a 2-stage
e/o modulator that was mounted inside. It was used in the NIF fusion
system.

I'm sure the e/o modulator is not inside that one; it's too valuable.

https://www.dropbox.com/scl/fi/820yum03ge45k0c80buwn/nif-1201-04100_18.jpg?rlkey=3ijtvb3bxmc9c4a9ealpcwffk&raw=1

https://www.dropbox.com/scl/fi/0b8ltf1hresx8gtfpds25/DSCN0100.JPG?rlkey=qsejza658v8uc9aae6hvh2hnj&raw=1


We made the arb waveform by summing 120 Gaussian impuses spaced 250 ps
apart. You can see the Gibbs Ears in the white waveform.

https://www.dropbox.com/scl/fi/5qf0c0y0627agx4wnwwim/Waffle.gif?rlkey=e8cgrnjli3e5d55wlt4unxjix&raw=1

World-class to e-waste in about 20 years.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On a sunny day (Sat, 14 Sep 2024 08:04:07 -0700) it happened john larkin <JL@gct.com> wrote in <kj8bej501c9du4djp3afhuhg22dipnibgr@4ax.com>:

On Sat, 14 Sep 2024 05:56:24 GMT, Jan Panteltje <alien@comet.invalid>
wrote:

On a sunny day (Fri, 13 Sep 2024 09:11:52 -0700) it happened john larkin >><JL@gct.com> wrote in <uqo8ej5a4nae7qj1m3uij37q67mb5ho75u@4ax.com>:

https://www.ebay.com/itm/266499095322

It's 49% off! And even more off from the original price.

What does it do?

Generates an arbitrary waveform when triggered, and drives a 2-stage
e/o modulator that was mounted inside. It was used in the NIF fusion
system.

I I now remember you talking about it here...

I'm sure the e/o modulator is not inside that one; it's too valuable.

https://www.dropbox.com/scl/fi/820yum03ge45k0c80buwn/nif-1201-04100_18.jpg?rlkey=3ijtvb3bxmc9c4a9ealpcwffk&raw=1

Is that their facility?

https://www.dropbox.com/scl/fi/0b8ltf1hresx8gtfpds25/DSCN0100.JPG?rlkey=qsejza658v8uc9aae6hvh2hnj&raw=1

That is one way to cool a rack!

We made the arb waveform by summing 120 Gaussian impuses spaced 250 ps
apart. You can see the Gibbs Ears in the white waveform.

https://www.dropbox.com/scl/fi/5qf0c0y0627agx4wnwwim/Waffle.gif?rlkey=e8cgrnjli3e5d55wlt4unxjix&raw=1

Close to rectangular!

World-class to e-waste in about 20 years.

Yes, same for most electronics, while back (few years) everybody had to dump their TV for a digital one
Then again here when we moved to DVB-T2 for terrestrial.. Buy a new box...
Now it is new smartphone ever few years?
I was reading some airline will now use starlink sats to gives users access to internet:
https://arstechnica.com/information-technology/2024/09/free-starlink-internet-is-coming-to-all-of-uniteds-airplanes/

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Sat, 14 Sep 2024 16:10:01 GMT, Jan Panteltje <alien@comet.invalid>
wrote:

On a sunny day (Sat, 14 Sep 2024 08:04:07 -0700) it happened john larkin ><JL@gct.com> wrote in <kj8bej501c9du4djp3afhuhg22dipnibgr@4ax.com>:

On Sat, 14 Sep 2024 05:56:24 GMT, Jan Panteltje <alien@comet.invalid> >>wrote:

On a sunny day (Fri, 13 Sep 2024 09:11:52 -0700) it happened john larkin >>><JL@gct.com> wrote in <uqo8ej5a4nae7qj1m3uij37q67mb5ho75u@4ax.com>:

https://www.ebay.com/itm/266499095322

It's 49% off! And even more off from the original price.

What does it do?

Generates an arbitrary waveform when triggered, and drives a 2-stage
e/o modulator that was mounted inside. It was used in the NIF fusion >>system.

I I now remember you talking about it here...

I'm sure the e/o modulator is not inside that one; it's too valuable.

https://www.dropbox.com/scl/fi/820yum03ge45k0c80buwn/nif-1201-04100_18.jpg?rlkey=3ijtvb3bxmc9c4a9ealpcwffk&raw=1

Is that their facility?

Yes. I was surprised to find that pic online, with the posters on the
end of the rack.

https://www.dropbox.com/scl/fi/0b8ltf1hresx8gtfpds25/DSCN0100.JPG?rlkey=qsejza658v8uc9aae6hvh2hnj&raw=1

That is one way to cool a rack!

We made the arb waveform by summing 120 Gaussian impuses spaced 250 ps >>apart. You can see the Gibbs Ears in the white waveform.

https://www.dropbox.com/scl/fi/5qf0c0y0627agx4wnwwim/Waffle.gif?rlkey=e8cgrnjli3e5d55wlt4unxjix&raw=1

Close to rectangular!

The 120 Gaussian impulses were spaced optimally to get a flat-top
rectangular waveform. But if you try to make a square pulse from those impulses, you get the Batman effect, the ears on either end.

Fortunately, the real waveform doesn't need the sharp corners.

Nowadays, one would just use a screaming fast DAC.

The next-gen modulator uses a Tek arb to make the waveform, and we
post-process that. I had to invent a new way to bias some $300
distributed amplifier chips. DAs are usually specified for telecom
use, where the waveform is DC-balanced data, 8b10b or some such, but
we wanted big short pulses.

World-class to e-waste in about 20 years.

Yes, same for most electronics, while back (few years) everybody had to dump their TV for a digital one
Then again here when we moved to DVB-T2 for terrestrial.. Buy a new box... >Now it is new smartphone ever few years?
I was reading some airline will now use starlink sats to gives users access to internet:
https://arstechnica.com/information-technology/2024/09/free-starlink-internet-is-coming-to-all-of-uniteds-airplanes/

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

john larkin <JL@gct.com> wrote:

On Sat, 14 Sep 2024 05:56:24 GMT, Jan Panteltje <alien@comet.invalid>
wrote:

On a sunny day (Fri, 13 Sep 2024 09:11:52 -0700) it happened john larkin
<JL@gct.com> wrote in <uqo8ej5a4nae7qj1m3uij37q67mb5ho75u@4ax.com>:

https://www.ebay.com/itm/266499095322

It's 49% off! And even more off from the original price.

What does it do?

Generates an arbitrary waveform when triggered, and drives a 2-stage
e/o modulator that was mounted inside. It was used in the NIF fusion
system.

I'm sure the e/o modulator is not inside that one; it's too valuable.

https://www.dropbox.com/scl/fi/820yum03ge45k0c80buwn/nif-1201-04100_18.jpg?rlkey=3ijtvb3bxmc9c4a9ealpcwffk&raw=1

https://www.dropbox.com/scl/fi/0b8ltf1hresx8gtfpds25/DSCN0100.JPG?rlkey=qsejza658v8uc9aae6hvh2hnj&raw=1

We made the arb waveform by summing 120 Gaussian impuses spaced 250 ps
apart. You can see the Gibbs Ears in the white waveform.

https://www.dropbox.com/scl/fi/5qf0c0y0627agx4wnwwim/Waffle.gif?rlkey=e8cgrnjli3e5d55wlt4unxjix&raw=1

World-class to e-waste in about 20 years.

What’s the wavelength? I might be interested.

Cheers

Phil Hobbs

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

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Sat, 14 Sep 2024 18:04:42 -0000 (UTC), Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

john larkin <JL@gct.com> wrote:

On Sat, 14 Sep 2024 05:56:24 GMT, Jan Panteltje <alien@comet.invalid>
wrote:

On a sunny day (Fri, 13 Sep 2024 09:11:52 -0700) it happened john larkin >>> <JL@gct.com> wrote in <uqo8ej5a4nae7qj1m3uij37q67mb5ho75u@4ax.com>:

https://www.ebay.com/itm/266499095322

It's 49% off! And even more off from the original price.

What does it do?

Generates an arbitrary waveform when triggered, and drives a 2-stage
e/o modulator that was mounted inside. It was used in the NIF fusion
system.

I'm sure the e/o modulator is not inside that one; it's too valuable.

https://www.dropbox.com/scl/fi/820yum03ge45k0c80buwn/nif-1201-04100_18.jpg?rlkey=3ijtvb3bxmc9c4a9ealpcwffk&raw=1

https://www.dropbox.com/scl/fi/0b8ltf1hresx8gtfpds25/DSCN0100.JPG?rlkey=qsejza658v8uc9aae6hvh2hnj&raw=1


We made the arb waveform by summing 120 Gaussian impuses spaced 250 ps
apart. You can see the Gibbs Ears in the white waveform.

https://www.dropbox.com/scl/fi/5qf0c0y0627agx4wnwwim/Waffle.gif?rlkey=e8cgrnjli3e5d55wlt4unxjix&raw=1

World-class to e-waste in about 20 years.

What’s the wavelength? I might be interested.

Cheers

Phil Hobbs

We modulate at 1053 nm, which is optically amplified, tripled to UV,
and amplified some more.

The triplers are giant, beautiful, pinkish slabs of glass. Take the
NIF tour if you are ever around Livermore.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)