Re: ADMIN: [HP-Agilent-Keysight-equipment] PCMCIA FLASH and HP8920B
Dr. David Kirkby from Kirkby Microwave Ltd
On Sun, 26 Aug 2018 at 16:07, Chuck Harris < cfharris@...> wrote:
Now if there was a way to eliminate the email barrage of
copies of posts that are being edited a bit at a time...
? Which as I wrote before, there is, as I have disabled editing of posts.? I know quite a fwe places, like for example on the Kesight forums, where its possible to edit the posts, but only the first gets emailed. Any subsequent edits do not result in another email to everyone. Very often I will correct a type, or add something to make it clearer. But it is only seen on the web - not on an email.
I'm unsure why send out multiple emails, but the problem has been solved by disabling edits.
Flame suit extinguished...
? Good!?
-Chuck Harris
Dave
-- Dr David Kirkby Ph.D C.Eng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom.
Registered in England and Wales as company number 08914892
Tel 01621-680100 / +44 1621-680100
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Re: ADMIN: [HP-Agilent-Keysight-equipment] PCMCIA FLASH and HP8920B
I clicked on "Manage My Subscriptions",
and got a screen with my subscriptions.
But, there is no "advanced preferences" that I can find
anywhere in that screen....
However, if I click on the entry for HP-Agilent... under
the "Delivery" heading, I get a screen with my usual Email
delivery options, and at the bottom of the screen is a
section labeled "Advanced Preferenced" which is as you
described.
Thanks for the information.
Now if there was a way to eliminate the email barrage of
copies of posts that are being edited a bit at a time...
Flame suit extinguished...
-Chuck Harris
Mark Goldberg wrote:
toggle quoted message
Show quoted text
On Sun, Aug 26, 2018 at 6:42 AM, Chuck Harris <cfharris@...> wrote:
Ok, this has to stop.
This group has always been a text only and no attachments group,
and here comes 20+ Mb of pictures that are of no interest to me,
anyway, but have to be downloaded before I can pass by the message
to delete it.
If attachments, and HTML stay selected on this group, I will be
unsubscribing.
-Chuck Harris
I did not get any attachments. You can log into groups.io and manage your
subscriptions. There is an advanced preferences area where you can set the
max attachment size of messages emailed to you. If you set it to zero you
should not even get messages with attachments, only a link to retrieve
them. Don't know what can be done about HTML mail as many mail clients
default to that.
Regards,
Mark
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Re: ADMIN: [HP-Agilent-Keysight-equipment] PCMCIA FLASH and HP8920B
Dr. David Kirkby from Kirkby Microwave Ltd
On Sun, 26 Aug 2018 at 14:42, Chuck Harris < cfharris@...> wrote: Ok, this has to stop.
This group has always been a text only and no attachments group,
and here comes 20+ Mb of pictures that are of no interest to me,
anyway, but have to be downloaded before I can pass by the message
to delete it.
If attachments, and HTML stay selected on this group, I will be
unsubscribing.
-Chuck Harris
As someone pointed out, you can disable attachments yourself on . You can probably configure your mail client to strip HTML if you really want to, but a bit of HTML can make a post a lot easier to read. I think the most significant issue here was the editing, which has been disabled. -- Dr David Kirkby Ph.D C.Eng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom.
Registered in England and Wales as company number 08914892
Tel 01621-680100 / +44 1621-680100
|
Re: ADMIN: [HP-Agilent-Keysight-equipment] PCMCIA FLASH and HP8920B
Dr. David Kirkby from Kirkby Microwave Ltd
On Sun, 26 Aug 2018 at 14:42, Chuck Harris < cfharris@...> wrote: Ok, this has to stop.
This group has always been a text only and no attachments group,
and here comes 20+ Mb of pictures that are of no interest to me,
anyway, but have to be downloaded before I can pass by the message
to delete it.
If attachments, and HTML stay selected on this group, I will be
unsubscribing.
-Chuck Harris
I know there are arguments for and against HTML emails, but what suited most people years ago, may not be the same now.
I believe the issue here was that someone kept editing a post on the web, so people received mutliple copies with attachments. I've disabled editing of posts. If people make a mistake, they can send a correction.
The actual images, in total were only half a MB in total - it was the constant editing that caused the problems.
Hopefully those changes are a happy medium, between those that want to attach a few photographs, and not overwhelming everyone with a large inbox.
Dave
-- Dr David Kirkby Ph.D C.Eng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom.
Registered in England and Wales as company number 08914892
Tel 01621-680100 / +44 1621-680100
|
Hi Ed. I can see the oscillation at the input with the input coax both attached and disconnected. It does drop some 3-4dB in amplitude when the input of the module is disconnected. I have not been able to see anything on the input when connecting that to the spectrum analyzer. Touching the case of Q6 increases the amplitude of the oscillation by some 20dB, the other transistors give no or little change in the amplitude. I can't see any other signs of oscillation than the signal near 27MHz, altough I suppose Q5 or Q6 could oscillate at UHF, and that the dampening in the output amplifier attenuates it below the spectrum analyzer noise floor. I did several sweeps to 7GHz, but was not able to detect any oscillations. All of the electrolytics used for decoupling are cheap axial electrolytics. I suppose someone could have changed those out, although the solder joints looks original, and there is no traces of flux on the board. The ESR of all the capacitors at 100KHz is within reasonable limits. Bypassing with 100nF SMD's did nothing to stop the oscillations, neither did 10nF. DC bias level makes sense as far as I can see, the base of Q5 is a bit high, at 21.9V, but without voltages on the schematic, its hard to determine if this is correct. My 11729C has a serial no. near 100, suggesting that this is a early unit. Another peculiar thing is that there is no 640MHz SMA out on the back, only the 640MHz BNC input. The low noise amplifier PCB is marked 11729-60009, and as far as I can determine, the board and schematic in the 2509A manual match. BR. Thomas. Den l?r. 25. aug. 2018 kl. 23:45 skrev Ed Breya via Groups.Io <edbreya@...>:
Is the preamp circuit really that different between versions? I would think they'd be close either way. Can you see the oscillations on the output, without any other signals applied? If so, try unplugging the input cable at J1, eliminating any input signal and the cable capacitance, and see if it becomes (at least marginally) stable.
I haven't used or seen the insides of my 11729C in years, so don't recall the looks and accessibility of the modules. Can the preamp be opened up and set up for operation while open, and out in the open for access? If so, then you can use the old pencil trick and poke around the hot nodes to find the sensitive spots. 27 MHz seems rather low for one of these stages to oscillate at - you'd expect something at VHF or up. So, it would likely be due to the preamp's LF feedback loop instability, or in the power amp stage that is much slower. Q6 could maybe use a bead on its base too.
Another possibility is that there are actually two VHF oscillations going on, and the 27 MHz is just one of the mixing products that's in-band for the overall amplifier. If you have a spectrum analyzer handy, try looking at the output, but at way higher frequencies and sensitivities. If nothing shows at the output, try looking at the input, where you may have closer access to any VHF stuff going on in the preamp.
Before digging too deep, it would be good to do a quick check through the stages to be sure the DC bias levels make sense.
You are right to question the PS bypassing arrangement, and try adding some HF bypass caps. However, if these electrolytics are tantalum type (most likely), then they should have good performance even at RF, so the need for extra bypassing is greatly reduced. Worth checking though, just in case.
BTW the schematic I'm looking at says it's A6A1 low noise amplifier board assembly (11729-60009).
Good luck.
Ed
-- With Best regards, Thomas S. Knutsen. Please avoid sending me Word or PowerPoint attachments.
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Re: ADMIN: [HP-Agilent-Keysight-equipment] PCMCIA FLASH and HP8920B
On Sun, Aug 26, 2018 at 6:42 AM, Chuck Harris < cfharris@...> wrote: > > Ok, this has to stop. > > This group has always been a text only and no attachments group, > and here comes 20+ Mb of pictures that are of no interest to me, > anyway, but have to be downloaded before I can pass by the message > to delete it. > > If attachments, and HTML stay selected on this group, I will be > unsubscribing. > > -Chuck Harris I did not get any attachments. You can log into and manage your subscriptions. There is an advanced preferences area where you can set the max attachment size of messages emailed to you. If you set it to zero you should not even get messages with attachments, only a link to retrieve them. Don't know what can be done about HTML mail as many mail clients default to that. Regards, Mark
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Re: PCMCIA FLASH and HP8920B
EVERY BLINKING TIME YOU EDIT YOUR POST THE ENTIRE CORPUS OF THOSE
THAT GET THESE POSTS BY EMAIL GETS ANOTHER COPY OF YOUR DAMN PICTURES!
I have Fios, and 25Mbit/second download speed, and your 25 Mbytes of
pictures takes about a minute to download, what with all of the overhead
of the email encoding of your pictures.
So, I have now received your stupid pictures at least 4 times, maybe
6 times.
-Chuck Harris
RFI-EMI-GUY wrote:
toggle quoted message
Show quoted text
[Edited Message Follows]
[Reason: added PS]
I have this slew of PCMCIA FLASH memory cards and I need help in determining which if any will work with my HP8920B. The manuals are not very descriptive and I don't want to damage anything in trying. I have some test programs in battery backed SRAM PCMCIA and would like them on FLASH for long term . Help? Thanks Joe PS If anything it would be helpful to know which ones not to bother trying.
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Re: ADMIN: [HP-Agilent-Keysight-equipment] PCMCIA FLASH and HP8920B
Ok, this has to stop.
This group has always been a text only and no attachments group,
and here comes 20+ Mb of pictures that are of no interest to me,
anyway, but have to be downloaded before I can pass by the message
to delete it.
If attachments, and HTML stay selected on this group, I will be
unsubscribing.
-Chuck Harris
RFI-EMI-GUY wrote:
toggle quoted message
Show quoted text
[Edited Message Follows]
I have this slew of PCMCIA FLASH memory cards and I need help in determining which if any will work with my HP8920B. The manuals are not very descriptive and I don't want to damage anything in trying. I have some test programs in battery backed SRAM PCMCIA and would like them on FLASH for long term . Help? Thanks Joe
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Re: wanted: HP 70K MMS (hp 70000) software: whole system software, individual module software, ROM software, personality software, etc.)
Will be using the KE5fx GPIB Toolkit for 1st attempts with the HP 70K MMS for Phase-Noise Measurements ! ? ?Had not noticed that prior ... ?apologies ! ? ? Has anyone installed the GPIB Toolkit ?& PN.exe ?on a Linux box ??" ? The current version of PN supports the following spectrum analyzer models:
- Tektronix 490P/2750P series
- Tektronix 2782/2784
- HP 8566/8567/8568 series (both -A and -B models)
- HP 8560A/8560E/8590-series portables
- HP 70000 series
- HP 3585A/B
- HP 3588A/3589A
- HP 4195A
- HP 4396A/B
- Advantest R3131
- Advantest R3132, R3162, R3172, and R3182
- Advantest R3264, R3267, and R3273
- Advantest R3463, R3465, R3263, and R3272
- Advantest R3261, R3361, R3265, and R3271
- Advantest TR417x series
- Agilent E4400 ESA/PSA series
- Agilent E4406A VSA
- Rohde & Schwarz FSE series, FSIQ, FSP, FSQ, and FSU
- Anritsu MS8604A and MS8608A
- Anritsu MS2650/MS2660 series
PN is able to support the ¡°classic¡± models like the HP 8566 because it runs on a GPIB-connected host PC ?"
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Re: Free 16702A Logic Analyzer Chassis
Dr. David Kirkby from Kirkby Microwave Ltd
On Sun, 26 Aug 2018 at 02:23, Niel Viljoen < nviljoen@...> wrote: I hope this is not inappropriate for the group.
Yes, not problems, as its HP kit.
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Replacement for 1853-0252 (SJ1798)?
This transistor is in the +248V regulator in my 141T display section. Did not find a cross reference in my data.
Any suggesstions for a suitable replacement?
Thanks Ernst
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Re: 3325A power supply overheating
Hi Peter,
I quickly checked my 3325A, and it also has the brown PCB areas around the diodes CR1-CR4
Might make it difficult to find a good replacement from a parts unit.
My unit does not have the oven oscillator, so can't compare.
cheers,
Marc.
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Re: PCMCIA FLASH and HP8920B
Hi,
You cannot write to any Flash card in a HP 892x radio test set. No "ATA" PCMCIA flash cards (inc CF adaptors) can be read by an 892x. Most of those you have should be readable in your 8920B once you have got the files on to them.
Getting the files on to them has a couple of issues:
1/ Some Flash cards need an external 12V supply and most laptops and PCMCIA adaptors don't provide this despite it being part of the specification.
2/ The card format is not DOS / FAT so you need to use specialst software to write to the card. They are sometimes called "linear" cards and act like RAM/ROM rather than a disk
I have sucessfully used Elan PCMCIA adaptors and their Memory Card Explorer software on a PC. Unfortunatly Elan have gone out of business and even before their products were expensive.
An EPROM programmer with a PCMCIA adaptor can also be used.
Robert G8RPI.
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Re: Free 16702A Logic Analyzer Chassis
and I just bought one... :/ :D Enviado do meu Tele-Movel
On Sat, Aug 25, 2018, 22:23 Niel Viljoen < nviljoen@...> wrote: I hope this is not inappropriate for the group.
I have a working 16702A in good condition EXCEPT that the built in display does not work, I have used it with an external display for some time. It has no cards. I am located in the Bay Area.
N/
I have some others that I may be willing to sell if there is interest as well 16702A fully working with 1 logic analyzer card, 16500C also in very good condition with 1 logic analyzer card.
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Free 16702A Logic Analyzer Chassis
I hope this is not inappropriate for the group.
I have a working 16702A in good condition EXCEPT that the built in display does not work, I have used it with an external display for some time. It has no cards. I am located in the Bay Area.
N/
I have some others that I may be willing to sell if there is interest as well 16702A fully working with 1 logic analyzer card, 16500C also in very good condition with 1 logic analyzer card.
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Re: PCMCIA FLASH and HP8920B
On 08/25/2018 06:01 PM, RFI-EMI-GUY wrote: [Edited Message Follows]
[Reason: added PS]
I have this slew of PCMCIA FLASH memory cards and I need help in
determining which if any will work with my HP8920B. The manuals are not
very descriptive and I don't want to damage anything in trying. I have
some test programs in battery backed SRAM PCMCIA and would like them on
FLASH for long term . Help? Thanks Joe? PS If anything it would be
helpful to know which ones not to bother trying. Just FYI, every time you "edit your post", the rest of us get another copy of all of those pictures in our email. -Dave -- Dave McGuire, AK4HZ New Kensington, PA
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Re: wanted: HP 70K MMS (hp 70000) software: whole system software, individual module software, ROM software, personality software, etc.)
Hi all I have a few disks of 70000 software?
unfortunately I do not have the ability to verify the contents / copy or
transfer ?as listed below
?
?
|
Description
|
Function
|
Equipment
|
Disk
|
Part Number
|
format
|
|
?
|
?
|
?
|
?
|
?
|
?
|
|
System? Verification
|
Executive Disk 1
|
?
|
1
|
5010-1537
|
5.25
|
|
System? Verification
|
Executive Disk 2
|
?
|
2
|
5010-1537
|
5.25
|
|
System? Verification
|
Test Disk? 1
|
71100A / 71200A
|
1
|
5010-1537
|
5.25
|
|
System? Verification
|
Test Disk? 2
|
71300A / 70300A
|
2
|
5010-1537
|
5.25
|
|
System? Verification
|
Test Disk? 3
|
71201A
|
3
|
5010-1537
|
5.25
|
|
System? Verification
|
?
|
?
|
?
|
5010-1537
|
Missing
|
|
?
|
?
|
?
|
?
|
?
|
?
|
|
?
|
?
|
?
|
?
|
?
|
?
|
|
?
|
?
|
?
|
?
|
?
|
?
|
|
Modula Verification
|
Executive Disk 1
|
70908A
|
1 of? 12
|
70908-10002
|
5.25
|
|
Modula Verification
|
Executive Disk 2
|
70908A
|
2 of? 12
|
70908-10002
|
5.25
|
|
Modula Verification
|
Executive Disk 3
|
70908A
|
3 of? 12
|
70908-10002
|
5.25
|
|
Modula Verification
|
Operating Disk
|
70908A
|
4 of? 12
|
70908-10002
|
5.25
|
|
Modula Verification
|
Drivers Disk 1
|
70908A
|
5 of? 12
|
70908-10002
|
5.25
|
|
Modula Verification
|
Drivers Disk 2
|
70908A
|
6 of? 12
|
70908-10002
|
5.25
|
|
Modula Verification
|
Drivers Disk 3
|
70908A
|
7 of? 12
|
70908-10002
|
5.25
|
|
Modula Verification
|
?
|
70908A
|
8 of? 12
|
70908-10002
|
Missing
|
|
Modula Verification
|
?
|
70908A
|
9 of? 12
|
70908-10002
|
Missing
|
|
Modula Verification
|
?
|
70908A
|
10 of? 12
|
70908-10002
|
Missing
|
|
Modula Verification
|
?
|
70908A
|
11 of? 12
|
70908-10002
|
Missing
|
|
Modula Verification
|
?
|
70908A
|
12 of? 12
|
70908-10002
|
Missing
|
|
?
|
?
|
?
|
?
|
?
|
?
|
|
Modula Verification
|
?
|
70300A
|
1 of 9
|
70300-10002
|
Missing
|
|
Modula Verification
|
?
|
70300A
|
2 of 9
|
70300-10002
|
Missing
|
|
Modula Verification
|
Operating Disk
|
70300A
|
3 of 9
|
70300-10002
|
5.25
|
|
Modula Verification
|
Driver Disk 1
|
70300A
|
4 of 9
|
70300-10002
|
5.25
|
|
Modula Verification
|
Driver Disk 2
|
70300A
|
5 of 9
|
70300-10002
|
5.25
|
|
Modula Verification
|
Test Disk 1
|
70300A
|
6 of 9
|
70300-10002
|
5.25
|
|
Modula Verification
|
Test Disk 2
|
70300A
|
7 of 9
|
70300-10002
|
5.25
|
|
Modula Verification
|
Test Disk 3
|
70300A
|
8 of 9
|
70300-10002
|
5.25
|
|
Modula Verification
|
Adjustment Disk
|
70300A
|
9 of 9
|
70300-10002
|
5.25
|
?
?
From:
[email protected]
[mailto:[email protected]]
On Behalf Of garp6
Sent: 25 August 2018 17:53
To: [email protected]
Subject: Re:
[HP-Agilent-Keysight-equipment] wanted: HP 70K MMS (hp 70000) software: whole
system software, individual module software, ROM software, personality
software, etc.)
?
Does anyone have ?*any* ?HP 70K MMS (HP 70000 system ) ?software
to deposit into an Open archive ?
? ?Anyone know of any HP 70K MMS era related HP Engineers, Service
Techs, or MMS end-users that can be contacted, that might be able to help ?
Please let us know.
thank you !!
No virus found in this message.
Checked by AVG -
Version: 2016.0.8048 / Virus Database: 4793/15883 - Release Date: 08/14/18
|
3325A power supply overheating
I have a 3325A which recently stopped working.? I've traced the problem to a very high load from one particular PCB and will track down the (most likely) bad tantalum.
However, I noticed that the power supply PCB shows signs of overtemperature around the four large diodes.? The board is quite brown.? Even without the problem PCB connected, those diodes as well as the pass transistors on the heatsink run pretty hot.? It looks like repairs have been made in that area by someone else in the past.? The fan seems to be operating normally.? Has anyone else noticed this?
I'm thinking of finding a replacement power supply PCB or buying a parts unit hoping the power supply is in better shape.? Before I go to ebay, does anyone have a parts unit?
Also, the oven oscillator, while close to proper frequency, is showing quite a lot of short term drift, close to 0.5 PPM over the span of minutes, up and down.? While I don't need super precision usually, this is obviously wrong and should also be replaced.
|
I have this slew of PCMCIA FLASH memory cards and I need help in determining which if any will work with my HP8920B. The manuals are not very descriptive and I don't want to damage anything in trying. I have some test programs in battery backed SRAM PCMCIA and would like them on FLASH for long term . Help? Thanks Joe? PS If anything it would be helpful to know which ones not to bother trying.
|
Is the preamp circuit really that different between versions? I would think they'd be close either way. Can you see the oscillations on the output, without any other signals applied? If so, try unplugging the input cable at J1, eliminating any input signal and the cable capacitance, and see if it becomes (at least marginally) stable.
I haven't used or seen the insides of my 11729C in years, so don't recall the looks and accessibility of the modules. Can the preamp be opened up and set up for operation while open, and out in the open for access? If so, then you can use the old pencil trick and poke around the hot nodes to find the sensitive spots. 27 MHz seems rather low for one of these stages to oscillate at - you'd expect something at VHF or up. So, it would likely be due to the preamp's LF feedback loop instability, or in the power amp stage that is much slower. Q6 could maybe use a bead on its base too.
Another possibility is that there are actually two VHF oscillations going on, and the 27 MHz is just one of the mixing products that's in-band for the overall amplifier. If you have a spectrum analyzer handy, try looking at the output, but at way higher frequencies and sensitivities. If nothing shows at the output, try looking at the input, where you may have closer access to any VHF stuff going on in the preamp.
Before digging too deep, it would be good to do a quick check through the stages to be sure the DC bias levels make sense.
You are right to question the PS bypassing arrangement, and try adding some HF bypass caps. However, if these electrolytics are tantalum type (most likely), then they should have good performance even at RF, so the need for extra bypassing is greatly reduced. Worth checking though, just in case.
BTW the schematic I'm looking at says it's A6A1 low noise amplifier board assembly (11729-60009).
Good luck.
Ed
|
Alexandre Souza
Dave McGuire
Paul Bicknell
RFI-EMI-GUY
