Re: Wanted: Manual for HP 6116A power supply
That link is for a 6112A (0-40V), not a 6116A (
0-100
0-100
V).
Have you searched for "HP STB Series Power Supply manual".
This link appears to be a better copy than Keysight.
Thanks for the link, but this is the same terrible copy as on the Keysight website.
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Re: Wanted: Manual for HP 6116A power supply
Artek manuals have it - their scans are usually top notch - no
connection just a happy customer, I have bought many dozens over the
years.
On 05/12/2024 06:36, Jared Cabot via
groups.io wrote:
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Hi all,
?
I'm looking for a service manual for a HP 6116A power supply.
Either an original paper version, or a high quality scan
would be great. (I'll pay for the original paper manual, shipped
to Japan).
The copy on the Keysight website is atrocious, and the usual
suspects for manuals don't seem to have a copy for this
instrument.
?
?
?
Any help locating a manual would be greatly appreciated!
?
Thanks!
Jared
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Re: Wanted: Manual for HP 6116A power supply
Have you searched for "HP STB Series Power Supply manual".
This link appears to be a better copy than Keysight.
Thanks for the link, but this is the same terrible copy as on the Keysight website.
|
Re: Wanted: Manual for HP 6116A power supply
Thanks for the link, but this is the same terrible copy as on the Keysight website.
|
Re: Wanted: Manual for HP 6116A power supply
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Show quoted text
Hi all,
?
I'm looking for a service manual for a HP 6116A power supply.
Either an original paper version, or a high quality scan would be great. (I'll pay for the original paper manual, shipped to Japan).
The copy on the Keysight website is atrocious, and the usual suspects for manuals don't seem to have a copy for this instrument.
?
?
?
Any help locating a manual would be greatly appreciated!
?
Thanks!
Jared
|
Re: Shielded probe cables?
On Thu, Dec 5, 2024 at 01:33 AM, Mark Litwack wrote:
The connector on the chassis side I'm fairly certain is a Fujitsu FCN-215Q060-G/0, but I have not purchased it to verify.
You mean on the actual HP/Agilent/Keysight unit?
?
Thanks for all the pointers. I will check them out!
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Wanted: Manual for HP 6116A power supply
Hi all,
?
I'm looking for a service manual for a HP 6116A power supply.
Either an original paper version, or a high quality scan would be great. (I'll pay for the original paper manual, shipped to Japan).
The copy on the Keysight website is atrocious, and the usual suspects for manuals don't seem to have a copy for this instrument.
?
?
?
Any help locating a manual would be greatly appreciated!
?
Thanks!
Jared
|
Re: Shielded probe cables?
On Sat, 30 Nov 2024 at 08:53, Anders via <anders.gustafsson= [email protected]> wrote: If we think about the nice logic cables that come with the HP MSOs, ie a flat, presumable shielded cable, a box and then thin, flexible, presumable shielded cables that go to the probes. I would love to have something similar for my KingstWiz 32 ch analyser. Anyone know a good source for thin, flexible, shielded cables?
Cables with U.FL connectors are readily available. They use a very thin coax.?
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Re: Troubleshooting a 8591e with opt 130
Marco, ? LOG/LIN measurements 300 MHz and 1500 MHz, 0dB to 60dB attenuators are normal, obviously with a 50 or 60dB attenuator, at 1500 MHz, the signal will be noisy. ? ResBW test are normal too. ? Flatness measurement 10MHz to 1.8GHz are normal, your calibration constants for this section are all at 0dB correction. In my case, without correction, I have a slope of -4.6dB between 10MHz and 1.8GHz. ? The test of the attenuator from 0dB to 60dB at 300 MHz and -20dBm is normal. ? For the SPAN test at 999.8MHz, relatively normal. The fluctuation between 999.54 and 1.00022GHz is partly related to the frequency resolution for the marker in normal mode for a span of 15 MHz/400 points. Added to this is the stability of the center frequency by the COUNTER LOCK link. There is a correction that is done at each sweep to correct the center frequency and based on the reference. ? 
? Obviously, the most important thing is to fix the problem related to the FREQ UNCAL message. ? Yves
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Re: Shielded probe cables?
Yes, the 54620-61601 is one option. ?It has an easy-to-deal-with 0.1" 2x20 header connector on the chassis side, but can be a bit pricey because it is used on current Keysight products. ?You will need two of them to support all the inputs on the 5032.
?
Another option is the 01650-61607, which is a woven 40-pin to 40-pin cable, and both ends are 0.1" 2x20. ?With this you would again need two, and you would get two flying lead sets. ?The cable looks like this:
?
? https://www.ebay.com/itm/224889355559
?
And the flying leads look like this, part # number 01650-61608 or E5383A.? They're very common because they fit a lot of cable assemblies:
?
? https://www.ebay.com/itm/364891811232
?
If you don't mind working with finer pitch connectors (and you can find them), the 16715-61601 can also be a good solution. ?It supports two sets of flying leads (same as above) via one chassis connection. ?It looks like this:
?
? https://www.artisantg.com/56270-30/HP-16715-61601
?
The connector on the chassis side I'm fairly certain is a Fujitsu FCN-215Q060-G/0, but I have not purchased it to verify.
?
Note: The above ebay and other links are just to show what they look like. ?I did not shop for price.
?
Since the part numbers on any of these cable assemblies are not actually printed on it, ebay and other sellers often just list them as "hp pod" or "agilent pod" cables, since those words do appear on the shells. ?You'll have better luck price-wise if you search for those terms, although you'll also get a lot of junk to wade through.
?
I like https://picclick.com/ when searching for things by appearance.
?
-mark
?
?
On Wed, Dec 4, 2024 at 07:47 AM, Anders wrote:
We are talking about something like the
HP/Agilent 54620-61601 Logic Analyzer Probe Cable, right?
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Re: HP 8566B issue above 18.5GHz ?
At these frequencies it¡¯s always a bit iffy to stack up coax adapters like that, but you would normally see a gradual ¡®suckout¡¯ rather than an abrupt loss of continuity in the sweep if that were the problem.? Zoom in on a CW signal in that region and hit the PRESEL PEAK button.? Hopefully that will bring the signal level up.? ? I actually don¡¯t recall if the peaking constant is stored in NVRAM on these boxes, as mine have rarely needed it.? If so, and if your lithium battery has been replaced, you may have lost the previous peaking constants.? In that case it may be helpful to re-create them at various frequencies. ? You could also have an issue on the preselector tuning board.? Approach that with caution, and rule out everything else first.? You don¡¯t want to have to redo all those trimpot settings if you can help it. ? -- john, KE5FX ?
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From: [email protected] < [email protected]> On Behalf Of wojciechoo via groups.io Sent: Wednesday, December 4, 2024 10:52 AM To: [email protected]Subject: [HP-Agilent-Keysight-equipment] HP 8566B issue above 18.5GHz ? ? Dear Colleagues
I wanted to ask you what is the reason that when I sweep by 8340B or 8341B and observe the flatness of the power by 8566B, from about 18.5GHz I see about 10dB of abrupt power drop? Is this some issue of the 8566B analyzer? I observe the same effect for both the 8340B and 8341B generators, so I assume that it is something related to the 8566B analyzer...
Best regards, Wojciech
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Re: HP 8566B issue above 18.5GHz ?
There is a specific calibration step for lining up frequencies in different bands. On this analyzer it seems to be off.
Ozan
?
?
On Wed, Dec 4, 2024 at 01:58 PM, Jack wrote:
I am going back to the manual as there is something weird at 18.6GHz.?
This a CW signal at the frequency on my 8566B
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Re: HP 8566B issue above 18.5GHz ?
I am going back to the manual as there is something weird at 18.6GHz.?
This a CW signal at the frequency on my 8566B
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Re: Troubleshooting a 8591e with opt 130
hi Marco,
with the help of Yves, (and of the nice TinySA Ultra)?I recently got my 8595E up and running again,?after it?had been sitting idle for a years,?waiting to replace the YTO and the Switched Yttrium Tuned Filter at the signal input
Now I noticed that by varying the REF LEVEL spikes appear exactly like in your case (see your post below); the same ones disappear if I exclude the corrections
Did you then solve the problem?
Adri
?
?
?
?
?
?
?
?
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----- Messaggio originale -----
Inviato: 26/11/2024 21:23:37
Oggetto: Re: [HP-Agilent-Keysight-equipment] Troubleshooting a 8591e with opt 130
Yves,?
?
I finally had some time to solder and to the measurements, sorry for the hold up.
Below are the results
?
Next I checked all the lines to see if they would ever change by changing the ref level and log/lin setting. It looks like we are onto something there.
| ? |
low |
high |
| A1 |
0,003 |
5,15 |
| A2 |
0,003 |
5,15 |
| A3 |
0,003 |
5,15 |
| A4 |
0,003 |
5,15 |
| A5 |
0,003 |
0,004 |
| G1 |
0,004 |
5,15 |
| G2 |
0,004 |
5,15 |
| G3 |
0,004 |
5,15 |
| ? |
low |
high |
| G4 |
14,238 |
-5,5 |
| G5 |
14,238 |
-5,755 |
| G6 |
14,238 |
-3,075 |
?
A5 seems broken, G6 looks somewhat suspicious. The level being about 15dB off also fits the A5 16dB attenuator not working. I'll take out the A7 Analog board to directly solder a wire to U111 pins 8 and 9 to see if the output of the 74HC374 has failed or that the IOB12 is faulty.?
Perhaps the function of IOB12 is identifiable because IOB12 also switches several other signals like A7 U201 Pins 2 and 3 (10dB Section in or out), A7 U11 pin 19 (ATP1), d4 of A7 U104 (Bw control Dac), A7 U107 pin 9 (IFG5). Since IFG5 seems to work I suspect IOB12 must be working.?
?
Then some other strange behavior caught my eye. Ofcourse we can expect some additional noise since both the LogAmp and the Amp control have quite some gain, they mis the top of the enclosure and they have several antennas running off the board to measure the levels, but a big difference was observed in noisefloor between two ref levels.?
Note the 2 plots below. The only difference is Ref level -9 and -10. The -9dB ref has upward spikes jumping around, the -10dB has downward spikes but a ~15dB higher noisefloor.
I guess this might have to do with the 16dB attenuator not kicking in.
?
Are G4/G5/G6 at the same levels on your analyzer??
?
Marco
?
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Re: HP 8566B issue above 18.5GHz ?
Yes, it could need adjustment for band level and also the preselector.? Ed
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Re: Troubleshooting a 8591e with opt 130
Yves,
?
I took off all the additional test wires and build the analyzer back into its enclosure. (For now I just left the Fast ADC option out to not introduce any potential new issues_ Next let it run for > 1 hr and did a full selfcal.
Most of it looks good I think, one new issue seems to have popped up though. With span settings between 300MHz and 10MHz I get a flashing "FREQ UNCAL"? on the display. Googled a bit, could this be the flatcable to the YTO? The analog board and RF section have been moved around quite a bit so this could ofcourse have caused a bad connection.?
?
Apart from that I measured the CAL signal in both Log and Lin mode in all attenuator settings:
| LOG |
? |
? |
? |
LIN |
? |
? |
| Att |
300MHz? |
1500MHz |
? |
Att |
300MHz? |
1500MHz |
| 0 |
-20,02 |
-34,3 |
? |
0 |
-20,03 |
-34,26 |
| 10 |
-20,02 |
-34,15 |
? |
10 |
-20,05 |
-34,07 |
| 20 |
-19,95 |
-34,55 |
? |
20 |
-20,01 |
-34,65 |
| 30 |
-19,98 |
-33 |
? |
30 |
-20,04 |
-34 |
| 40 |
-19,98 |
-33,94 |
? |
40 |
-20 |
-32,5 |
| 50 |
-20,02 |
-32,7 |
? |
50 |
-19,97 |
-32,6 |
| 60 |
-20 |
-32 |
? |
60 |
-20 |
-31 |
Looked OK to me, only 50 and 60dB att with the 1500MHz signal are noisy.
?
Measured the Cal signal with all the RBW's
| RBW |
300MHz |
| 5M |
-19,99 |
| 3M |
-19,97 |
| 1M |
-20,01 |
| 300k |
-20,02 |
| 100k |
-20,03 |
| 30k |
-20,01 |
| 10k |
-19,99 |
| 3k |
-20,04 |
| 1k |
-20,16 |
| 300 |
-19,97 |
| 100 |
-20,06 |
| 30 |
-20,09 |
?
And measured some signals generated by the TinySA, considering the expected accuracy of the TinySA, there is not too much that can be said but at least they seem to agree.
?
I tested one frequency with the TinySA, set it to 999.8MHz, and checked the peak mkr freq at different spans. Mostly 15MHz seemed to showcase the issue with the mkr jumping around between 2 frequencies.?
I think it would be best to focus on the Freq Uncal error a bit now before adding the FADC option and seeing if I can do some kind of gain correction. Do you have any other ideas than the YTO cable??
?
Also I want to check the internal gains with the different ref levels but trying to get that plotted in one image for now.?
?
Marco
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Re: HP 8566B issue above 18.5GHz ?
Ed, I don¡¯t think that¡¯s right. The band does switch in at 18.6 GHz but the 8566 compensated for the loss in power and what you see is a step up in the noise floor, not a step down in the power level.
Wojciech, you probably need to perform adjustments related to band 4 in the tests and adjustments manual.
Note that the 8340/1 has a similar architecture to the 8566 and so it¡¯s possible those units are exhibiting the issue you believe is coming from the 8566. But, as you point out, it¡¯s less likely two units have the same fault than 1.
Matt
That's just where the next harmonic mixing band switches in. Check in the manual to see how it's supposed to work.? Ed
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Re: HP 8566B issue above 18.5GHz ?
That's just where the next harmonic mixing band switches in. Check in the manual to see how it's supposed to work.? Ed
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HP 8566B issue above 18.5GHz ?
Dear Colleagues I wanted to ask you what is the reason that when I sweep by 8340B or 8341B and observe the flatness of the power by 8566B, from about 18.5GHz I see about 10dB of abrupt power drop? Is this some issue of the 8566B analyzer? I observe the same effect for both the 8340B and 8341B generators, so I assume that it is something related to the 8566B analyzer... Best regards, Wojciech  ?
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Re: VNA Resonance Methodology
Finally I got some time to perform measurements. I used an E5061A VNA (a nanovna can be used as direct replacement, this is nothing special). I started calibrating my port 1 on SMA male. I build a simple coil over a plastic form and I used a 160pF mica plate capacitor in series. I got a series resonance frequency of fs= 2.718 MHz and ?a series resonance due pasitic capacitance (Cp) of fp=15.757 Mhz. I used segmented sweep to have more frequency resolution at fs.?
If I short the coil and I measure the capacitance ?this is ?@fs C= 162.14 pF performing some calculations* Cp = 4.97 pF ?, then we can compute L = 20.518 microH at fs the series resistance was Rs= 2.314 ohm and this is Q= 151. There are more information on attached pictures.? If we not consider the Cp(=0) ¡ the results are : L= 21.147 microH Q= 156.?
*The series capacitance is close to the ratio of fp and fs squared minus one times Cp : C= ((fp/fs)^2 -1) Cp ?
Ing. Patricio A. Greco
Laboratorio de Calibraci¨®n ISO 17025?AREA: RF/MW?
Gral. Mart¨ªn Rodr¨ªguez 2159
San Miguel (1663)
Buenos Aires
T: +5411-4455-2557
F: +5411-4032-0072
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On 1 Dec 2024, at 18:46, Jinxie via < paul666@...> wrote:
I'll just post some shots to answer the requests earlier up the thread.
This first one is the set-up I'm using. I have had to resort to some longish leads to connect the items together, but this is only 1.45Mhz so practically DC and shouldn't materially affect the results.
?
The Smith Chart plot for this set-up:
? (does that look right?)
?
The linear plot for the set-up shows the poor Q and why I couldn't get a dip with my meter earlier. I did try the log plot out of interest, but it was so flat you really couldn't see the resonant area at all:
?
I'll try the shunt arrangement in due course, but? I won't have access to the analyzer again for another 2 weeks.
?
?
?
?
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Michael A. Terrell
Jared Cabot
Anders
Dr. David Kirkby, Kirkby Microwave Ltd
Jack
Patricio A. Greco
