Re: HP859x GPIB read cal constants
Hi Harke,
?
my cal constants sit in a battery powered RAM. I had entered them manually a long time ago.
I don't want to do that again after swapping the battery. There must be a way via GPIB.
If someone can point me to the steps I can write and publish a script.
?
73s Tom DG8SAQ
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Re: HP859x GPIB read cal constants
Tom,
I do not know the 9x series but I am familiar with the 6x series.
Does your analyzer have a EEPROM that you can copy?
Btw: the RAM in need of a battery of the 61x series only contain
less important data. The important data is in the EEPROM.
Best 73 de Harke, PA0HRK
On 18/12/2024 10:21, tom_iphi via
groups.io wrote:
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Hi,
?
does anybody happen to have a script or basic info how to
read/restore the calibration constants via GPIB for the HP859x
spectrum analyzers?
My battery is nearing end of life...
?
Thanks, Tom
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HP859x GPIB read cal constants
Hi,
?
does anybody happen to have a script or basic info how to read/restore the calibration constants via GPIB for the HP859x spectrum analyzers?
My battery is nearing end of life...
?
Thanks, Tom
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Re: HP 8566B issue above 18.5GHz ?
OK, I found it, blue shift + presel peak. Unfortunately, the analyzer will really need adjustment because the problem has returned. In addition, the amplitude characteristic is wavy. However, I think that it will be impossible to do calibration without a power meter.
Best regards, Wojciech
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Don't forget it's not just about the power rating and cfm. Some of the older HP gear, especially RF gear, requires a certain static pressure from the fan in order to push air through the various areas.?
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Even with the same rating and cfm it might not have enough 'push' to force air through the small holes in the various assembly's.
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I think that contributes a lot to the noise.
?
That said I replaced the fan in my 8341b with a 135cfm model instead of 170cfm, and it's been OK.?
?
?
?
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Re: fully refurbished Hp 8563E 26.5GHz spectrum analyzer with LCD screen 2100US dollar
Hi David closer than you think :O). We are neighbours. It is located in Denmark ??
best regards Peter
Where on the planet is this please
?
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From: [email protected] <[email protected]>
On Behalf Of Peter Hansen via groups.io
Sent: 17 December 2024 22:17
To: [email protected]; [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] fully refurbished Hp 8563E 26.5GHz spectrum analyzer with LCD screen 2100US dollar
?
For sale for 2100US is one of Hp's top models. It goes from 9khz to 26.5Ghz.
It is synthezised controlled analyzer and measuring / counting frequency down to 1 Hz resolution.
?
It is an E model that has a resolution bandwidth of down to 1Hz. This means you can see signals 60-70dB down a few hz next to the center frequency. DSP process is used at the lowest bandwidths.
Hz offset from the carrier
The E model has lower phase noise and lower noise floor which gives higher dynamic range.
In addition, it has mounted an HP?85620A memory module. Two software packages are installed on the module
85671A Phasenoise measurement
85672A Harmonic measurements etc. IMD etc
The 63E has the following options
None installed
This 8563E has a LCD screen update.
The unit has relatively low hours around 10000 hours
It measures accurately and complies to specs and works 100%.
?
One of the images shows the Frequency response from 10Mhz to 26.5Ghz. You can see that the response is flat throughout the complete frequency range
Also it is shown that this analyzer is really accurate.
The analyzer is in fine condition with almost non traces of wear.
The YIG tuned filter (RYTHM) has been refurbished.
Here is a link to Data on it.
HP 8560 E-Series Spectrum Analyzers Technical Specifications?HP?8560E 30 Hz to 2.9 GHz?HP?8561E 30 Hz to 6.5 GHz?HP?8562E?30 Hz to 13.2 GHz?HP?8563E?30 Hz
to 26.5 GHz?HP?8564E 30 Hz to 40 GHz
|
See model HP8563E
?
It can be sent by UPS for around 50-75Euro.
I have a sturdy box it can be sent in. If any one want to travel these days it can be tested and picked up at my address.
?
The Analyzer is delivered with a memory stick with all manuals I have available for it.
As the sale is private I cannot give any warrenties of course.
For questions call or write.
Best regards Peter OZ1LPR
Attachments:
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Re: fully refurbished Hp 8563E 26.5GHz spectrum analyzer with LCD screen 2100US dollar
Where on the planet is this please ?
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From: [email protected] <[email protected]> On Behalf Of Peter Hansen via groups.io
Sent: 17 December 2024 22:17
To: [email protected]; [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] fully refurbished Hp 8563E 26.5GHz spectrum analyzer with LCD screen 2100US dollar? For sale for 2100US is one of Hp's top models. It goes from 9khz to 26.5Ghz. It is synthezised controlled analyzer and measuring / counting frequency down to 1 Hz resolution. ? It is an E model that has a resolution bandwidth of down to 1Hz. This means you can see signals 60-70dB down a few hz next to the center frequency. DSP process is used at the lowest bandwidths. Hz offset from the carrier The E model has lower phase noise and lower noise floor which gives higher dynamic range. In addition, it has mounted an HP?85620A memory module. Two software packages are installed on the module 85671A Phasenoise measurement 85672A Harmonic measurements etc. IMD etc
The 63E has the following options
None installed
This 8563E has a LCD screen update. The unit has relatively low hours around 10000 hours It measures accurately and complies to specs and works 100%. ? One of the images shows the Frequency response from 10Mhz to 26.5Ghz. You can see that the response is flat throughout the complete frequency range Also it is shown that this analyzer is really accurate. The analyzer is in fine condition with almost non traces of wear. The YIG tuned filter (RYTHM) has been refurbished.
Here is a link to Data on it. HP 8560 E-Series Spectrum Analyzers Technical Specifications?HP?8560E 30 Hz to 2.9 GHz?HP?8561E 30 Hz to 6.5 GHz?HP?8562E?30 Hz to 13.2 GHz?HP?8563E?30 Hz to 26.5 GHz?HP?8564E 30 Hz to 40 GHz |
See model HP8563E ? It can be sent by UPS for around 50-75Euro. I have a sturdy box it can be sent in. If any one want to travel these days it can be tested and picked up at my address. ? The Analyzer is delivered with a memory stick with all manuals I have available for it.
As the sale is private I cannot give any warrenties of course.
For questions call or write. Best regards Peter OZ1LPR Attachments:
|
I'm quite happy with 3457A, if you are able to get hand on one with switch, you can have more channels in one unit. With standard card you will get 2 electronically switchable inputs. As mentioned it is not a 7.5 digit meter. Voltage input is limited to 300V. Measures resistances up to 3GOhms. 100pA resolution. For 3V range you can choose between high impedance input and fixed Z 10MOhm. But for todays standards is quite old. I'm missing the continuity check for example.?
?
Keithley 2001 have fan, but should be probably better than Keithley 2010. Both have scanner card slot, 2010 can do up to 20 channels, but only with latest fw. - mine do only 10 channels, 2001 I have no idea. Someone prepared the card with CPU and opto-switches, so you can build one (it has switch so it can work as 10 or 20 channel card based on the multimeter capability). What I'm missing on both of them is fixed input impedance at 10MOhm, below 20V you have high input resistance. What I have noticed on all Keithleys that I have is the bad front/rear switch which does not work smoothly as on HPs (never had issues with switch even on old 3478A).
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As a 'home gamer' without any budget, the orphaned marques like Solartron, Prema, or Wavetek-Datron seem the most appealing. I'd even take Marconi or Racal-Dana if they had produced a decent 7.5 DMM, but I don't think they did.
?
Modular LED displays do seem the most appropriate, but I can't be picky on a budget of only a few hundred USD on this. I would roll my own Arduino alphanumeric LCD if it would save me $1000 or so, but I would rather not do that.
?
Good notes on the Prema, I'll continue hunting.
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Beware of old meters displays, eg vacuum fluorescent, LCD getting dim or failed segment with age.
We prefer LED display.
Found the best recent meters are HP ( Keysight) 34460/65/75A great capabilities, interface glib, Ethernet etc. Fine statistical and graphics
The resolution is higher than expected.
The model's go up in calibration accuracy
Jon
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I guess for an apples to apples, I should say the 8505A/8506A are 10ppm instruments (90 days). But if you take their 24hr spec (6ppm, or 5ppm in AVG), it's a hair better than even the much newer Keithley 2001, which presents its 24hr to be 7ppm.? I'm taking a quick stab at the specs, there's many qualifiers to be considered, but I think my numbers as presented roughly puts them shoulder to shoulder.? I really like the 8505A/8506A meters (of which I have several) vs. other similar ones. I think they're a leg into true metrology, but for anything more serious, I personally rely on my Prema 6048 (8.5 digits), which, like the Solartrons and others, can occasionally be had pretty affordably?(especially if you're willing to repair them). The Prema is exceptionally?easy to repair, with through-hole parts throughout?and widely clear access to both sides of the PCBs. There's also some notable improvements per EEVBlog, which smooth out some relatively minor design wrinkles that the maker never addressed.? The normative 8.5 digit metrology instrument is of course the 3458A, but that's also why it's very tough to find affordably?if working.?
If you do get a 2001, there's very extensive troubleshooting and repair informaion
on eevblog.? I bought a broken one and got it half fixed before setting it aside.
There are _very_ extensive diagnostics in that machine.
On Tue, Dec 17, 2024 at 02:33:04PM -0800, VE6WMR via wrote:
> David, thanks for that. It isn't fit for purpose then. I'll keep my eye out for a Keithley 2001 then.
--
Paul Amaranth, GCIH? ? ? ? ? ? ?| Manchester MI, USA? ? ? ? ? ? ?
Aurora Group of Michigan, LLC? ?|? ?Security, Systems & Software
paul@...? ? ? ? ? ? ? |? ?Linux/Unix - We don't do windows
|
If you do get a 2001, there's very extensive troubleshooting and repair informaion
on eevblog. I bought a broken one and got it half fixed before setting it aside.
There are _very_ extensive diagnostics in that machine.
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Show quoted text
On Tue, Dec 17, 2024 at 02:33:04PM -0800, VE6WMR via groups.io wrote: David, thanks for that. It isn't fit for purpose then. I'll keep my eye out for a Keithley 2001 then.
--
Paul Amaranth, GCIH | Manchester MI, USA
Aurora Group of Michigan, LLC | Security, Systems & Software
paul@... | Linux/Unix - We don't do windows
|
I'd generally agree with David on that statement. This is essentially a 17ppm instrument, so not a lot for a 7.5 digit meter. For instance - little known fact - but Fluke 8505A/8506A are 7.5 digits on their 10V scale (not "extended" over GPIB) and 6ppm units. Much better.
The other oddness with the 3457A is the "3" ranges, which is acquired by some odd scaling which makes the design cumbersome and arguably lowers the performance somewhat. Many prefer the 3456A to the 3457A for that reason. Also, I'm personally not a fan of the 3457A's LCD display. The 8505/6 meters are much easier to use and have a great display (if not on 24/7 for decades).
Generally speaking how much one can get from "extended 7.5 digit" operation is debatable, and heavily depends on the design/implementation and the actual specs of the unit.
Radu.
On Tue, Dec 17, 2024, 2:36 PM Four Designs Company via <fourdesigns= [email protected]> wrote: You might also consider a Datron 1071 or 1081. These are excellent instruments.
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You might also consider a Datron 1071 or 1081. These are excellent instruments.
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David, thanks for that. It isn't fit for purpose then. I'll keep my eye out for a Keithley 2001 then.
|
Re: fully refurbished Hp 8563E 26.5GHz spectrum analyzer with LCD screen 2100US dollar
For sale for 2100US is one of Hp's top models. It goes from 9khz to 26.5Ghz.
It is synthezised controlled analyzer and measuring / counting frequency down to 1 Hz resolution.
It is an E model that has a resolution bandwidth of down to 1Hz. This means you can see signals 60-70dB down a few hz next to the center frequency. DSP process is used at the lowest bandwidths.
Hz offset from the carrier
The E model has lower phase noise and lower noise floor which gives higher dynamic range.
In addition, it has mounted an HP?85620A memory module. Two software packages are installed on the module
85671A Phasenoise measurement
85672A Harmonic measurements etc. IMD etc
The 63E has the following options
None installed
This 8563E has a LCD screen update.
The unit has relatively low hours around 10000 hours
It measures accurately and complies to specs and works 100%.
One of the images shows the Frequency response from 10Mhz to 26.5Ghz. You can see that the response is flat throughout the complete frequency range
Also it is shown that this analyzer is really accurate. The analyzer is in fine condition with almost non traces of wear.
The YIG tuned filter (RYTHM) has been refurbished.
Here is a link to Data on it.
|
HP 8560 E-Series Spectrum Analyzers Technical Specifications?HP?8560E 30 Hz to 2.9 GHz?HP?8561E 30 Hz to 6.5 GHz?HP?8562E?30 Hz to 13.2 GHz?HP?8563E?30 Hz to 26.5 GHz?HP?8564E 30 Hz to 40 GHz
testequipment.center
|
See model HP8563E
It can be sent by UPS for around 50-75Euro.
I have a sturdy box it can be sent in. If any one want to travel these days it can be tested and picked up at my address.
The Analyzer is delivered with a memory stick with all manuals I have available for it.
As the sale is private I cannot give any warrenties of course.
For questions call or write.
Best regards Peter OZ1LPR
|
I'm considering purchase of an HP3457A for use in metrology, primarily for setting DC voltage with 7.5 digits of precision.
It's not a metrology unit.? ?
It seems that I can purchase an HP3457A for a few hundred dollars, calibrated. I've reviewed the datasheet, and the operating manual, I can't see how it extracts the last extended digit in what appears to be a 6.5 digit meter in all stated specifications.
?
I realize that the counting speed is very low at that high resolution, and there may be better quality or faster choices. I'm on a budget for this one, I have bought discounted Solartron meters in the past and am quite happy with that value as well.
?
Bottom of the test equipment market here, could a HP3457A be made to display 7.5 digits in DC volts as-is?
? I believe one can only get the last digit via the GPIB bus.? As far as I am aware, it is basically noise, and not actually worth having. I think you need to accept it's a very decent 6.5 digit meter. I have one, which I bought used about 30 years ago. I sent it to Keysight for cal about 5 years ago, and it was still in spec.?
I have seen Kiethley 2001's at quite reasonable prices. If you want 7.5 digits, that's probably a better bet.
|
I'm considering purchase of an HP3457A for use in metrology, primarily for setting DC voltage with 7.5 digits of precision. It seems that I can purchase an HP3457A for a few hundred dollars, calibrated. I've reviewed the datasheet, and the operating manual, I can't see how it extracts the last extended digit in what appears to be a 6.5 digit meter in all stated specifications.
?
I realize that the counting speed is very low at that high resolution, and there may be better quality or faster choices. I'm on a budget for this one, I have bought discounted Solartron meters in the past and am quite happy with that value as well.
?
Bottom of the test equipment market here, could a HP3457A be made to display 7.5 digits in DC volts as-is?
|
Re: HP8753 E and ES Inverted display fix & how to revitalize keypads
Liked, subscribed!
--
With best regards
Tam HANNA
Enjoy electronics? Join 21k4 other followers by visiting the Crazy Electronics Lab at
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HP8753 E and ES Inverted display fix & how to revitalize keypads
I decided to make some repair videos about how to fix the most common issues with HP8753 series network analyzers.
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Here is my first attempt where I cover how to fix the inverted display issue & non-functional keys.? I may do more of these covering other topics (stepped attenuator issues, troubleshooting, etc).? Welcoming feedback.
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?
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David C. Partridge
Froggie the Gremlin
Dr. David Kirkby, Kirkby Microwave Ltd