HP 8559 / 853A How to peak hold and normalize display??
I would like to use a high level noise source (one of those $15 Chinese boards) with a HP8559/853 to do filter and amplifier passband / stopband measurements. I know that in general I have store the noise source's output and then subtract the filter (or amplifier) output in order to normalize the measurement against the non-constant noise source output.
I'm sure this must be a relatively routine measurement technique, but I don't know what buttons to press in what order on the 853A display unit to do this. The manual is pretty ambiguous about how to use the "A" and "B" "Trace" buttons.
Could someone who does this routinely explain which buttons to press when? And maybe, more clearly, what each of them does?
Thanks in advance for any help.
Lenny Wintfeld
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Attenuators in HP/Agilent Infinium 548xx scopes
Hello. Does anybody know if the attenuator modules are shared across the various 548xx scope models? I have a 54845 which I think has at least one bad unit. Can I salvage attenuators from, for example, a 54825?
Thanks.
-Pete
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No I havent checked anything yet..Please send a email to me and I can send pictures ?Maybe that will help better..
Skip.. ?Wb4yvo@...
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Group
I am asking for a bit of help or advice on a task I have taken on.
Fred, my former customer and associate,? passed away several years ago
and his widow has asked me to help sell his test equipment.
The small generic equipment I have been selling on ebay.
The HP and Tek gear I would like to offer on reflectors first.
We need and would sincerely appreciate any help on what a fair asking price
would be for the equipment and also if there is any item of interest to you
please contact me off list and I will attempt to test it and send
pictures.
This equipment is above average in appearance and comes from tobacco free
home maintained by a gentle and caring individual.
All items will be professionally packed and shipped to arrive alive WITH a
full refund if you are not satisfied with your purchase
HP items
8111A? function generator
3456A voltmeter
5401A scope
34970A data acquisition unit with two GPIB cables
Thank-you for your assistance and allowing me to post these items
here
Paul K0UYA
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Have you checked the power supplies for excessive ripple?
On 2015-Oct-14 9:46 AM, 'Skip Masker'
wb4yvo@... [hp_agilent_equipment] wrote:
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I have a HP-141T that was working
correctly but now has a problem with the scan???? instead of a
smooth trace its in humps.??? Hard to explain.??? I can take
pictures of trace..
???
Anyone with any ideas can contact
me???at??? wb4yvo@...???
then I can send pictures to describe symptoms much better..
???
???
Thanks
Skip...???
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I have a HP-141T that was working correctly but now
has a problem with the scan?? instead of a smooth trace its in humps.?
Hard to explain.? I can take pictures of trace..
?
Anyone with any ideas can contact me?at?
wb4yvo@...? then I can send
pictures to describe symptoms much better..
?
?
Thanks
Skip...?
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Re: HP1651B Boot and other Disks needed
Hello all,
Sam's original message prompted me to review my situation since I have a 1650B that I'd 'stolen' the power supply from in order to fix a 54510A 'scope.
I now have forty-odd 720K disks and a second working 1650B; at least working as far as duplicating disks and passing its self tests is concerned.? I also revived a PC that has a 3.5" floppy drive.? Not fun... dead CMOS RAM, one dead hard drive and one with a critical bad sector.? A CR2032 fixes the CMOS RAM problem, one hard drive has not recovered and the other is working after installing a new OS; I doubt that it will last very long.
I can now create LIF disks in one of two ways:
1. Duplicate them on the 1650B subject to whatever the V2.11 system disk can handle. 2. Create them on the PC as long as LIFUTIL.EXE can format and write the disk*.
A disk created from the V2.11 files downloaded from the Keysight site and created using LIFUTIL.EXE (copying files individually) works on the 1650B. ?(I've yet to try letting LIFUTIL.EXE copy an entire directory to the floppy.)
Since I had to buy the 720K disks and USPS don't ship for free, I'll offer 165XB System disks for $5 a pair shipped USPS** (one duplicated on the 1650B, one created on the PC; you have a better chance of one working that way).
I'll work with anyone else wanting disks for another instrument if you can supply the DOS format files and instructions how to use LIFUTIL.EXE to create the disk. ?(It's probably best not to be sending working disks around if you can duplicate your own.)
Orin.
*and as long as LIFUTIL.EXE can read the required files from a CDROM... I burn LIFUTIL.EXE and the required files to a CD and boot an MSDOS 6.22 disk with CDROM support.? The BIOS/MSDOS on this aging machine cooperate in this respect.? There are only two CD coasters in the trash can resulting from this experiment so far.
**48 contiguous states, $5 plus shipping cost elsewhere as I don't have a clue as to the postal rates elsewhere.? I do figure I can ship a couple of disks to the 48 contiguous states for $5 without losing money...
?
Hello Sam, Group,
Regarding failure to use Lifutil.exe on "DOS" machine: When downloading "1650_51B_V2.11_OS_SYS.zip" from HP-A-K website you get the LIF Utilities A.00.00, known to be quite fussy (to not say unusable) for machines it runs on. See end of document for details: ftp://ftp.hpmuseum.org/lif/lifutil/lif_over.txtYou can find LIF Utilities A.00.03 in the self extracting "Lifarc.exe" by searching for "LIFUTIL" on HP-A-K website. HTH, Paul
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Re: HP1651B Boot and other Disks needed
Sam,
Did you get your boot disk?
I had an operational 1650B, but I'd stolen it's power supply for a 54510A 'scope.? Your message prompted me to 'correct' the situation. I now have a PC capable of producing LIF disks and a second 1650B.
I can now make 165XB System Disks (V2.11) both on the 1650B and on a PC.
If you like, I could send you a couple of disks, one made on the 1650B and one made on a PC.? Both boot on my 1650B.
Orin.
On Sun, Oct 4, 2015 at 11:04 AM, sam.reaves@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:
?
Hello,
I picked up an otherwise operational HP1651B but I need the Boot disks for it.
Does anyone have any of these disks or can make one (or a few) for me?
Thank you,
Sam
W3OHM
Moderator LeCroy_Owners_Group
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Anyone have any experience with Sell It Easy?
I saw an article about this and was wondering if we're seeing a new competitor to ebay:
Just beginning so not in all cities for full service, but interesting!
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Hi,
Thanks for the tip! ?Yes I did check with Sphere. ?The CRTs are not in their list. ?So I sent them a message to see if they had any info.
Thanks again for your help.
73
Ray VE3FN
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Did you check here? ? ? ?Gang,
I have found a couple of NOS HP CRTs and I can find very little info on them. I suspect they are from old oscilloscopes. They are 5083-5072 and HAR 81149. Does anyone know what equipment used them?
Thanks!
Ray Perrin VE3FN
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Re: Comment on the UGSimple USB to GPIB adapter
Greetings,
Be careful with this unit. This is the "Simple" version of a more expensive one. I believe this one does not support the GPIB Trigger command, to name only this one. Only reads and writes are possible. This makes it much less appealing. The instrument will only trigger a read at its rate, not at your rate.
Cheers,
Bert, VE2ZAZ
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Re: HP 83592B hangs 8350B sweeper
Ed, I can sweep reliably within any band and see the frequency move up on my 8566 spectrum analyzer (1 to 2, 3 to 5, 7.5 to 10, and 15 to 18 GHz). I used a 10 sec sweep so it was visible. If I overlap a band the 8350 freezes. I suspected the bandswitch DAC which starts at 0v and has one step to +3.5v which is wrong. However there is a test (shift 56, page 8-127 step 2a) and the DAC looks OK. The TV buffer is OK as well. I am not sure where the bandswitch DAC gets its address and data. I think it is getting the wrong data. The Address is almost certainly from the 8350 but data could have been read from the switches on A7 or A8. Do you know? I am struggling a bit with downloaded manuals but making progress. Tucker has an original manual on Ebay for $100. Global has A and C manuals for about $35 but no B version. Does anyone have an original HP 83592B manual for sale at $40? Peter. ? ?
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From: hp_agilent_equipment@... [mailto:hp_agilent_equipment@...]
Sent: October-10-15 5:31 PM
To: hp_agilent_equipment@...
Subject: RE: [hp_agilent_equipment] HP 83592B hangs 8350B sweeper? ? I just noticed the original posting - it looks like the frequency is reasonably close, but amplitude is way off. Depending on the band (N), it could just be that alignment is needed, once the basic problem is fixed.
To get enough output power available for leveling, the YTO and YTM tuning have to be properly set up to track each other through the entire range of coverage. It could be that someone before had grossly misadjusted it while trying to fix it. Once you figure out the setting/overload problem, the rest should be OK after adjustment.
If the fundamental band around 2-7 GHz (N=1) is OK, but the higher ones (N=2 or 3) are not, it could be a problem with the YTM or power amp.
Ed
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I just realized that picture are not allowed. If anyone is interested I will
send a picture.
Jacques
Van: hp_agilent_equipment@...
[mailto:hp_agilent_equipment@...]
Verzonden: dinsdag 13 oktober 2015 10:34
Aan: hp_agilent_equipment@...
Onderwerp: [hp_agilent_equipment] HP Cable
Could this be helpful. Total lenght: about 36 cm, 6 coaxial connector on
both sides.
73 Jacques
---
Dit e-mailbericht is gecontroleerd op virussen met Avast antivirussoftware.
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Dit e-mailbericht is gecontroleerd op virussen met Avast antivirussoftware.
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Could this be helpful. Total lenght: about 36 cm, 6 coaxial connector on
both sides.
73 Jacques
---
Dit e-mailbericht is gecontroleerd op virussen met Avast antivirussoftware.
|
Did you check here?
?
?
In a message dated 10/12/2015 7:14:03 P.M. Eastern Daylight Time,
hp_agilent_equipment@... writes:
toggle quoted message
Show quoted text
?
Gang,
I have found a couple of NOS HP CRTs and I can find very
little info on them. I suspect they are from old oscilloscopes. They are
5083-5072 and HAR 81149. Does anyone know what equipment used
them?
Thanks!
Ray Perrin VE3FN
|
Re: Rear Cables for HP-8568B SA & Display Unit Needed
Here is an idea for the coax cable.
? | ? | | ? | ? | ? | ? | ? | Tracking Generator cable, 08443-60009, homebrew, HP 141T, 8443A | | | Preview by Yahoo | | ? |
Bob
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Re: Rear Cables for HP-8568B SA & Display Unit Needed
On 10/12/2015 09:25 PM, w8bya@... [hp_agilent_equipment] wrote: wow, TU all very much for that information and tips. I had no idea they
could be so difficult/expensive to obtain. I could not inspect the unit
before purchase ( defense auction) and I have always wanted a SA like
this since I used one in our own lab for many years. Being recently
laid-off has forced me to look for low cost solutions. I am just hoping
that if I do have to spend a pretty penny for the pair that the unit
itself works. I guess that's what makes this all very exciting :') TU
again. Where are you located? I can probably loan you a set so you can check out the SA and decide whether or not to spend money on it. -Dave -- Dave McGuire, AK4HZ New Kensington, PA
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Re: Rear Cables for HP-8568B SA & Display Unit Needed
wow, TU all very much for that information and tips. ?I had no idea they could be so difficult/expensive to obtain. ?I could not inspect the unit before purchase ( defense auction) and I have always wanted a SA like this since I used one in our own lab for many years. Being recently laid-off has forced me to look for low cost solutions. I am just hoping that if I do have to spend a pretty penny for the pair that the unit itself works. ?I guess that's what makes this all very exciting :') ?TU again.
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Re: Rear Cables for HP-8568B SA & Display Unit Needed
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Re: Rear Cables for HP-8568B SA & Display Unit Needed
Gah, you can pay more for the cables than the SA.
It is possible to make them up yourself, if a bit tedious. The
bus cable is not straight through, but it is documented in the
service manual.
The price for the connectors for the coax cable alone can hit
$70-80 or more though. So GLK's price on those is pretty good.
The best price I ever found for the coax cable was a kit someone
was offering on ebay for $50. That's been a while though.
I can make up bus cables for signifantly less than GLK, but I currently
lack a good screw solution for the centronics side of the cable.
They do show up on ebay once in a while. They don't last long if they're
priced anywhere reasonable.
Paul
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On Mon, Oct 12, 2015 at 08:13:34PM -0400, 'Tom Miller' tmiller11147@... [hp_agilent_equipment] wrote: Those cables are usually dear. Here is one source for both cables:
Otherwise, you should keep an eye out on ebay for a possible good deal that sometimes shows up.
The 8568B is a really nice SA and really works nice.
Regards,
Tom
----- Original Message -----
From: w8bya@... [hp_agilent_equipment]
To: hp_agilent_equipment@...
Sent: Monday, October 12, 2015 8:00 PM
Subject: [hp_agilent_equipment] Rear Cables for HP-8568B SA & Display Unit Needed
I recently purchased an HP-8568B 100 Hz to 1.5 GHz SA with matching display and am very excited about it. But unfortunately the two required interconnecting cables for the rear connections were not included.
I believe the HP part numbers are:
85662-60093 (coax interconnect), and
85662-60094 (Bus interconnect)
I was wondering if anyone had a pair of these cables they could part with so I could see if my new baby works? I would be happy to pay for them plus any shipping. Thank you !
Gedas, W8BYA
Gallery at
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
--
Paul Amaranth, GCIH | Rochester MI, USA
Aurora Group, Inc. | Security, Systems & Software
paul@... | Unix & Windows
|
Skip
ve2zaz
Dave McGuire