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Re: WAVEFORM AND SIGNAL ANALYSIS

 

On Mon, Sep 14, 2020 at 08:01 AM, Chuck Harris wrote:
Mr. Moon...is an artificial intelligence "bot"... [and is]... a vehicle for spamming
the groups.

The bot scans the messages on the group, and creates its own
messages...purpose is to see... [if]... the author can...fool... the group into believing Carl Moon is real.
Massive spamming for sure.
All Moon's posts appear to be vehicles to insert a link back to a Ghanaian political, and Internet woo, Website: baninii.com (It was previously prezhost.com; but, Google seems to have banned that site.) This infection appears on Amazon,Reddit, Facebook, Pinterest, Groups.io... and many others sites too.
The modus operandi of a posted link...by Moon... very often links to articles allegedly pirated by, and allegedly credited, to one Israel Banini.
In my view... whether an by Internet strip mining combined with machine learning... or just malicious individual(s)... it's a massive and egregious enterprise allegedly meant to unjustly enrich someone... by unjustly exploiting unaware forum members.
Re: Need support for HP-3586B and HP-3336B RPGs

 

JIim:

I have opened the panel on an HP 3586C and can confirm that the pinout on the diagram in your post is correct. Note that it is a 5 pin housing with pin 4 not populated with a wire.
I would note that pin 1, black is clearly shown as 'ground' and pin 5, white/red, is clearly shown as +5 in your diagram. I can confirm that the unit is indeed wired to the diagram you posted.

Hope that helps...
Re: 8648C RF Output Question

Dick
 

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The ones with Type N do not go below 10 MHz. The only one to go below
10 MHz has SMA's on it.

Tnx for the hint,

73, Dick, W1KSZ

From: [email protected] <[email protected]> on behalf of [email protected] <[email protected]>
Sent: Monday, September 14, 2020 9:50 AM
To: [email protected] <[email protected]>
Subject: Re: [HP-Agilent-Keysight-equipment] 8648C RF Output Question
?

mini-circuits is a good source. Prices are fairly reasonable compared to Pasternack and other high end vendors. The products work as advertised. I use mini-circuits dc blocks on my spectrum analyzers. The ones I have are supposed to be flat to 18 GHz.?


sean


On Mon, Sep 14, 2020 at 09:19 AM, Dick wrote:

Who is ..."they"... ??
?
73, Dick, W1KSZ
Re: HP 89410A / 89441A internal 3 1/2 floppy replacement

 

I went to the company's site, was impress with the various versions of the "floppy" drive.? Looks like not only do they have the full size 3.5" drives but the slimline versions too.? Also looks like one can purchase just the raw drive without the frame.

I have a Tek TDS644B scope, would like to replace it's floppy.? Don't know that even a slimline drive will fit, may have to buy just the pcb version and fabricate a mount.

Have others had experience with their line of emulators?? Does anybody in the US sell them, looks like these come from overseas.

Jim H.
Re: WAVEFORM AND SIGNAL ANALYSIS

 

The guy has an 'About' page here:



that's worth a read.

VirusTotal here:



gives this URL:



a clean scan and the only outgoing connection is to Wordpress.

From this chair then it all looks quite benign, if mildly annoying.


Best,
Bill Perkins

I do not get it. What is wrong or offensive of the post? The link was to a basic article and a scope. Regards – Mike
Hi Mike,
The links that I've seen are all to a site reproducing (Tek) publications or ignorant and even dangerous attempts to educate people in the field of our common love, all with lots of embedded ads. LeCroy and TekSopes Groups are also affected.
Ignoring means it'll multiply.
Earlier this morning (I'm at GMT+2), I informed David Kirkby and got his response so I guess it'll be taken care of.
Raymond
Re: 8648C RF Output Question

 

mini-circuits is a good source. Prices are fairly reasonable compared to Pasternack and other high end vendors. The products work as advertised. I use mini-circuits dc blocks on my spectrum analyzers. The ones I have are supposed to be flat to 18 GHz.?


sean


On Mon, Sep 14, 2020 at 09:19 AM, Dick wrote:

Who is ..."they"... ??
?
73, Dick, W1KSZ
Re: 8648C RF Output Question

Dick
 

开云体育

Who is ..."they"... ??

73, Dick, W1KSZ

From: [email protected] <[email protected]> on behalf of Reginald Beardsley via groups.io <pulaskite@...>
Sent: Monday, September 14, 2020 9:14 AM
To: [email protected] <[email protected]>
Subject: Re: [HP-Agilent-Keysight-equipment] 8648C RF Output Question
?
They make DC blocks.? I bought a couple of N blocks to use with my 8560A, etc.
Re: 8648C RF Output Question

 

They make DC blocks. I bought a couple of N blocks to use with my 8560A, etc.
Re: Need support for HP-3586B and HP-3336B RPGs

 

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Seems like the supply is reversed, if the schematic is to be believed. You got 5V on pin 1 but it’s “supposed” to be ground. If the RPG uses light bulbs, and a particularly forgiving output stage, it may still appear to “work” with such reversed supply, but I’m not sure I’d trust the schematics blindly. Presumably where the schematics described a PC-board, there was a net list sync done between the schema and layout so the schematics would be trustworthy to an extent. But where wire harnesses are involved, it’s a free-for-all, usually.

Interestingly enough, many European car manufacturers started using some integrated electrical CAD solution in the recent two decades, and they produce wiring diagrams totally consistent with wire harnesses - the diagram and the manufacturing drawings for the harness all come from the same single source of truth. Sure makes life easier when debugging a car - I had cars from the 90s where the wiring diagrams had a few mistakes that by luck affected circuits that often had to be involved in troubleshooting. Meh.

Cheers, Kuba

13 sep. 2020 kl. 9:26 em skrev Jim Sorenson <kjsorenson@...>:

?Hi Dan,?

Thank you very kindly for offer. If I need to take you up on that perhaps you could use boards or parts out my 3586 spares unit in return. In any case if you ever need a part or board, just email me.?

Since you have an RPG (sound like some military ordnance) could you possibly take a look at it and? pass on the following info to me.?

I would like to confirm the colors of the 4 wires for pins 1 - 4 from your unit there.?

What I've found in the doc is:?

<Snap 2020-09-13 at 21.08.58.jpg>


I show the black wire as pin 1 (5.5 volts) and the ground as pin 5 (red - white). This does not make sense to me.?

The RPG of the 3336B is working in both directions but frequency goes up when knob turned to the left and vice versa. When I when I traded sides for RPG 1 and RPG 2, it would not work at all. Something still wrong there.?

Next time I WILL take and keep notes.?

Thanks
Re: Agilent 54831M

 

I guess by SSD cable you mean SATA, I'm surprised, if I remember right, those units where IDE. So???

For the white screen it's most likely an unplugged cable. You can also try to use the VGA output, but I'm not sure if you need to enable it in BIOS first...

It is normal that only channel 1 and 4 lights up. It's not because both of them are working or not. It simply in it's initialization process. Same goes for the 1M and 50 ohm LED, both are only for the initialization, don't worry about that, mine does that too! So don't worry!

That thick line is normal, higher bandwidth mean higher noise, so get use to it! It's closer to the reality too (unless it is out of proportion, then it might be the scope).?

The calibrator output is on the same circuit then the AUX out that generates the calibration pattern. So if it doesn't output anything, it might mean the calibrator is defective. If that is the case, you won't be able to do the self cal and you won't be able to fix the two other channels (you might fix them but you need to calibrate them at least one for them to be usable).?

If the ADC were blown, you wouldn't see a line at all or it would be saturated, so that's good. You notice that when you plug something to them, there is a little bounce. depending on what the bounce looks like it might mean several things:
1- if it's just an impulse, it's either caused by coupled capacitance or by the long ground cable
2- if it's continuous and doesn't change if their is a signal or not, it's probably just detecting the probe as an antenna. In that case, you probably have a blown component, hard to say which one.
3- if it's continuous and change depending on signal, it is probably a bad amplifier. It could also be bad calibration factor. With your possibly defective calibrator, I would bet on that. If the calibration factor got corrupted at some point and the calibrator doesn't work, it could very well be simply that. You say you have other Tektronix scope? Use them to verify the output pattern of the AUX out when calibrating a channel and make sure it works properly.?

Considering your 50 ohm impedance is fine, it is unlikely that anything is blown on your signal path. Maybe, you could do this simple test. Plug 2 (1 functional, 1 defective) channels of your scope together to the FGEN. Output a square wave or a triangular wave. Both channel should be on 1M and same configs. Are they match? Then switch the functional channel to 50 ohm and store the waveform. Switch it back to 1M and display the save waveform. Switch the defective channel to 50 ohm. Does the functional channel and the save waveform match? There should be no amplitude or phase mismatch.
Re: Need support for HP-3586B and HP-3336B RPGs

 

Thanks Harvey,?

The wiring seems simple at first examination, however their are differences with regard to the connector layouts in the two machines for the RPG. The pins are not numbered, there are 4 pins and one open space on the 3336 but on the 3586 there are 5 pins. One 1 RPG the connector has a ridge on one side that only fits one way on the 3336, but on the other RPG the connector does not have that ridge and can put inserted either way. One RPG (of the three) is not wired by color that same as the other two. And so it goes. Had I had my previous notes on the original fix and if I had been more methodical regarding carrying out the second fix I would have saved myself a lot of grief. This is how airplanes crash.......

What Renée has provided today should result in a huge breakthrough, however. Everything is suddenly clear. In any case, the parts to repair an encoder all appear to be common off the shelf types and currently available at reasonable parts prices from Digi Key, eBay and Mouser.

What could possibly go wrong now, as they say.?

I will add to this thread as I proceed. Perhaps we can save someone down the road for going through encoder Hell.?

Jim










SN7413N "Original" TI 14P DIP TTL IC 2 pcs
Re: WAVEFORM AND SIGNAL ANALYSIS

 

On Mon, Sep 14, 2020 at 04:39 PM, Mike Feher wrote:

I do not get it. What is wrong or offensive of the post? The link was to a basic article and a scope. Regards – Mike

?

Hi Mike,
The links that I've seen are all to a site reproducing (Tek) publications or ignorant and even dangerous attempts to educate people in the field of our common love, all with lots of embedded ads. LeCroy and TekSopes Groups are also affected.

Ignoring means it'll multiply.

Earlier this morning (I'm at GMT+2), I informed David Kirkby and got his response so I guess it'll be taken care of.


Raymond
Re: WAVEFORM AND SIGNAL ANALYSIS

 

开云体育

OK, I see where you are coming from. Initially I thought he was responding to some novice asking a question. That does happen occasionally, and does deserve to be recognized. It was a wrong assumption on my part this time as I saw that it was a totally unsolicited post. If it is a an AI bot, then the poster does need to be deleted as we will not know what may come next. 73 – Mike

?

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

?

-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Dave McGuire
Sent: Monday, September 14, 2020 11:04 AM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WAVEFORM AND SIGNAL ANALYSIS

?

On 9/14/20 11:01 AM, Mike Feher wrote:

> I am not on any other related lists, so, I have not seen his other

> posts. One can certainly do basic signal and waveform analysis with a

> scope.

?

?? Very true.? It's word-for-word what he posted on a few other lists that I'm on.? The LeCroy list in particular, this morning.

?

> I do see that no one inquired about the subject so the random post

> seems to be for info only. Being 75 now, there is very little I can

> contribute to mostly software related posts. So, I do not get where

> you get off calling me a “well known topic Nazi”.

?

?? I was just yanking your chain.? You tend to get quite uppity when conversations drift away from HP test equipment here.

?

> Being a refugee from

> Hungary, I am far from a Nazi or a Communist. – Mike

?

?? Well I certainly didn't mean anything like that Mike, but if you took it that way, I apologize.? I intended no disrespect.? The term "nazi", in lowercase, was used as a (bad) generic term.? Perhaps "topic cop"

would've been more appropriate.

?

????????????? -Dave

?

--

Dave McGuire, AK4HZ

New Kensington, PA

?
Re: WAVEFORM AND SIGNAL ANALYSIS

 

On 9/14/20 11:01 AM, Mike Feher wrote:
I am not on any other related lists, so, I have not seen his other posts. One can certainly do basic signal and waveform analysis with a scope.
Very true. It's word-for-word what he posted on a few other lists that I'm on. The LeCroy list in particular, this morning.

I do see that no one inquired about the subject so the random post seems to be for info only. Being 75 now, there is very little I can contribute to mostly software related posts. So, I do not get where you get off calling me a “well known topic Nazi”.
I was just yanking your chain. You tend to get quite uppity when conversations drift away from HP test equipment here.

Being a refugee from Hungary, I am far from a Nazi or a Communist. – Mike
Well I certainly didn't mean anything like that Mike, but if you took it that way, I apologize. I intended no disrespect. The term "nazi", in lowercase, was used as a (bad) generic term. Perhaps "topic cop" would've been more appropriate.

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA
Re: Need support for HP-3586B and HP-3336B RPGs

 

Hey Renée,

Great find. That answers a lot of questions for me and given the detail of the two schematics one would have a good chance of rebuilding an RPG.? At least it can now be put under test and some diagnostics attempted.?

Thanks so much. I will let you know what I find out.?

Jim
Re: WAVEFORM AND SIGNAL ANALYSIS

 

Mike,

Not wanting to belabor this thread any more than absolutely
necessary, try doing a search on:

Carl Moon groups.io.

The general consensus of the dozens (hundreds?) of other
groups.io groups that have been visited by Mr. Moon, is he
is an artificial intelligence "bot" that has been sicced on
the groups as an experiment, or as a vehicle for spamming
the groups.

The bot scans the messages on the group, and creates its own
messages based on the words and phrases it finds. I believe
its purpose is to see how good of a job the author can do of
fooling the group into believing Carl Moon is real.

-Chuck Harris

Mike Feher wrote:

I do not get it. What is wrong or offensive of the post? The link was to a basic
article and a scope. Regards – Mike

?

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

?

*From:* [email protected]
<[email protected]> *On Behalf Of *Glen Slick
*Sent:* Monday, September 14, 2020 9:48 AM
*To:* [email protected]
*Subject:* Re: [HP-Agilent-Keysight-equipment] WAVEFORM AND SIGNAL ANALYSIS

?

This is the behavior that recently led to calls for this poster to be banned as a
nonsense spam poster. A moderator should just go ahead and ban this poster now
without further discussion on the list.

?

On Mon, Sep 14, 2020, 5:00 AM Carl Moon via groups.io <>
<carl.moon@... <mailto:[email protected]>> wrote:

As we all know, nearly all consumer products today have electronic circuits.
Whether a product is simple or complex, if it includes electronic components, the
design, verification, and debugging process requires an oscilloscope to analyze
the numerous electrical signals that make the product come to life.?
Re: WAVEFORM AND SIGNAL ANALYSIS

 

开云体育

I am not on any other related lists, so, I have not seen his other posts. One can certainly do basic signal and waveform analysis with a scope. I do see that no one inquired about the subject so the random post seems to be for info only. Being 75 now, there is very little I can contribute to mostly software related posts. So, I do not get where you get off calling me a “well known topic Nazi”. Being a refugee from Hungary, I am far from a Nazi or a Communist. – Mike

?

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

?

-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Dave McGuire
Sent: Monday, September 14, 2020 10:44 AM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WAVEFORM AND SIGNAL ANALYSIS

?

?

?? He is posting copies of that message to other lists as well.? It is becoming apparent that he is either a spammer trying to get un-moderated, or an AI that will probably become a spammer.? He's on a bunch of different lists talking about barely-relevant things in somewhat strangely-worded ways.

?

?? Also, as a well-known topic nazi, I'm surprised you didn't have a problem with his post. ;)

?

???????????? -Dave

?

On 9/14/20 10:39 AM, Mike Feher wrote:

> I do not get it. What is wrong or offensive of the post? The link was

> to a basic article and a scope. Regards – Mike

>

> Mike B. Feher, N4FS

>

> 89 Arnold Blvd.

>

> Howell NJ 07731

>

> 848-245-9115

>

Re: WAVEFORM AND SIGNAL ANALYSIS

 

开云体育

Dear Carl

?

Have I missed something hear as what dues this have to do with HP- Agilent

as this site has exceedingly good engineers on it and many of the original designers from HP

So pointing them to a sight on the use of an oscilloscope and detailing wave forms that most us learnt before we went to collage might be considered as an insult

?

Your comment please but Please stay professional

?

From: [email protected] [mailto:[email protected]] On Behalf Of Carl Moon via groups.io
Sent: 14 September 2020 13:00
To: [email protected]
Subject: [HP-Agilent-Keysight-equipment] WAVEFORM AND SIGNAL ANALYSIS

?

As we all know, nearly all consumer products today have electronic circuits. Whether a product is simple or complex, if it includes electronic components, the design, verification, and debugging process requires an oscilloscope to analyze the numerous electrical signals that make the product come to life.?

This article explains waveform and signal analysis.

No virus found in this message.
Checked by AVG -
Version: 2016.0.8048 / Virus Database: 4793/15886 - Release Date: 08/14/18
Internal Virus Database is out of date.
Re: WAVEFORM AND SIGNAL ANALYSIS

 

He is posting copies of that message to other lists as well. It is becoming apparent that he is either a spammer trying to get un-moderated, or an AI that will probably become a spammer. He's on a bunch of different lists talking about barely-relevant things in somewhat strangely-worded ways.

Also, as a well-known topic nazi, I'm surprised you didn't have a problem with his post. ;)

-Dave

On 9/14/20 10:39 AM, Mike Feher wrote:
I do not get it. What is wrong or offensive of the post? The link was to a basic article and a scope. Regards – Mike
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell NJ 07731
848-245-9115
*From:* [email protected] <[email protected]> *On Behalf Of *Glen Slick
*Sent:* Monday, September 14, 2020 9:48 AM
*To:* [email protected]
*Subject:* Re: [HP-Agilent-Keysight-equipment] WAVEFORM AND SIGNAL ANALYSIS
This is the behavior that recently led to calls for this poster to be banned as a nonsense spam poster. A moderator should just go ahead and ban this poster now without further discussion on the list.
On Mon, Sep 14, 2020, 5:00 AM Carl Moon via groups.io <> <carl.moon@... <mailto:[email protected]>> wrote:
As we all know, nearly all consumer products today have electronic
circuits. Whether a product is simple or complex, if it includes
electronic components, the design, verification, and debugging
process requires an oscilloscope to analyze the numerous electrical
signals that make the product come to life.
--
Dave McGuire, AK4HZ
New Kensington, PA
Re: WAVEFORM AND SIGNAL ANALYSIS

 

开云体育

I do not get it. What is wrong or offensive of the post? The link was to a basic article and a scope. Regards – Mike

?

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

?

From: [email protected] <[email protected]> On Behalf Of Glen Slick
Sent: Monday, September 14, 2020 9:48 AM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WAVEFORM AND SIGNAL ANALYSIS

?

This is the behavior that recently led to calls for this poster to be banned as a nonsense spam poster. A moderator should just go ahead and ban this poster now without further discussion on the list.

?

On Mon, Sep 14, 2020, 5:00 AM Carl Moon via <carl.moon=[email protected]> wrote:

As we all know, nearly all consumer products today have electronic circuits. Whether a product is simple or complex, if it includes electronic components, the design, verification, and debugging process requires an oscilloscope to analyze the numerous electrical signals that make the product come to life.?
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