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Re: WAVEFORM AND SIGNAL ANALYSIS

 

Re

"My oppinion: we should end the games. Group owner, email the guy and see
what he responds. Then decide on that "

I believe this has been dun
Regards Paul

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Tam Hanna
Sent: 14 September 2020 22:49
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WAVEFORM AND SIGNAL ANALYSIS

I can see, somewhere in an university, a social scientist laughing his
rear side off at how easy it was for him to upset the boffins. Probably,
he is on the fifth bottle of Chantre, having spilled half of it on the
floor laughing. They study soo hard, at STEM school, for this?


My oppinion: we should end the games. Group owner, email the guy and see
what he responds. Then decide on that...


Tam

With best regards
Tam HANNA

Enjoy electronics? Join 15k7 other followers by visiting the Crazy
Electronics Lab at

On 2020. 09. 14. 19:23, Bill Perkins wrote:
????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 ¨C 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






-----
No virus found in this message.
Checked by AVG - www.avg.com
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Internal Virus Database is out of date.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

 

I can see, somewhere in an university, a social scientist laughing his rear side off at how easy it was for him to upset the boffins. Probably, he is on the fifth bottle of Chantre, having spilled half of it on the floor laughing. They study soo hard, at STEM school, for this?


My oppinion: we should end the games. Group owner, email the guy and see what he responds. Then decide on that...


Tam

With best regards
Tam HANNA

Enjoy electronics? Join 15k7 other followers by visiting the Crazy Electronics Lab at

On 2020. 09. 14. 19:23, Bill Perkins wrote:
????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 ¨C 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

 

FWIW I'm making some DC blocks for an S parameter fixture for measuring transistors at RF with the nanoVNA. I bought SMA-M PCB edge connectors to make them with, but still need to buy SMD caps. 1/8" wide copper foil on .060" FR4 is a very good approximation to 50 ohms in microstrip form and easy to do.

I only recently got the DC block for my 8560A. Haven't actually used it yet. 10 MHz seems about right. I bought it to use with a moRFeus which has a built in bias tee. It's controlled by software, so it makes me nervous.

A pair of vertical mount PCB connectors on opposite sides of the PCB with a ring of SMD caps connecting the 2 should make a good high capacitance, low inductance block at low cost.

Have Fun!
Reg
Re: WAVEFORM AND SIGNAL ANALYSIS

 

Tom, there is no guy named Moon,
the post is bait

-----Original Message-----
From: [email protected]
<[email protected]> On Behalf Of Tom Holmes
Sent: Monday, September 14, 2020 4:24 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] WAVEFORM AND SIGNAL ANALYSIS

So collectively this group has inconvenienced far more electrons than Moon
did and for not much more benefit to the S/N of this group.

Tom Holmes, N8ZM
Re: WAVEFORM AND SIGNAL ANALYSIS

 

So collectively this group has inconvenienced far more electrons than Moon
did and for not much more benefit to the S/N of this group.

Tom Holmes, N8ZM
Database with a number of sub folders

 

¿ªÔÆÌåÓý

?

Hi all

just a reminder along with the Files with all the manuals we currently have we also have the Database with a number of sub folders for you to fill in if you want

One in particular is link ?that has a few short cuts to several sites including sites with Manuals

?

The Link file has just had a clean up removing links to elicit material , dead links , duplications , lines without links? etc

Thus making it less frustrating so all Links should work now

?

And anything that dues not have a home is in the Files Clipboard

?

Best Regards Paul

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: HP 89410A / 89441A internal 3 1/2 floppy replacement

 

On Mon, Sep 14, 2020 at 2:39 AM Peter Brown <peter@...> wrote:

Hi atc-HPequipgroup

I'll have to check what the original drives were in the 54624A and 16500C were to see if the pin outs are similar
The 16500A uses a Sony MP-F52W-30 floppy drive. This is a 600-RPM,
30mm (1.18 inch) height drive with a single 34-pin connector for power
and control/data.

The 16500B uses an Epson SMD-1000 / SMD1040-318-02 floppy drive. This
is a 18mm (0.71 inch) height drive with a single 34-pin connector for
power and control/data.

The 16500C uses a Teac FD-235HF floppy drive. This is a 300-RPM,
25.4mm (1 inch) height drive with a 4-pin power connector and a 34-pin
connector for control/data. This is a common PC style floppy drive.

The 16500A only supports LIF format floppies. The 16500B and 16500C
support both LIF and MS-DOS format floppies.
Re: WAVEFORM AND SIGNAL ANALYSIS

 

That sounds li,e the Usenet bot 20+ years ago who posted about the Armenian genocide on dozens/hundreds of groups.
On Sep 14, 2020, at 2:47 PM, Roy Thistle <roy.thistle@...> wrote:

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: 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
 

¿ªÔÆÌåÓý

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 ¨C 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
 

¿ªÔÆÌåÓý

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

 

¿ªÔÆÌåÓý

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 Ren¨¦e 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 ¨C 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
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