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MeloJiang in VEE Software6 days ago (Show more)

How to deal with the result generated by some "comparator"

Now I am working on a program with vee. The main function is to conduct several tests,for every test parts will be compared with the specified spec value. I now use the "comparator" and it will return the result of this test part.Because it should be say the sample is passed only after all the test parts return the pass result,but I don‘t know how… (Show more)

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Dr_Frank in Digital Multimeters4 years ago (Show more)

TrueVolt DMMs: Maximum voltage rating changed all of a sudden

The max. voltage rating for 3446xA and 34470A was changed in the specification recently, downgraded to 600V DC / 440V AC only. What's the reason behind? Can I still use the full 1000V DC or 750V AC, as imprinted on my 1 1/2 years old 34465A? Will Keysight fix all units, to bring them to full specification again? Frank

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amit17 in Network Analyzers17 hours ago (Show more)

Using IVIinstrument-AgNA to read S params to matlab

Hi,We are using Keysight P9373A Network analayser. Our main goal is to measure S params and save them into matlab. We looked for a code example but couldn't find any. We are looking for an example usage with IVIinstrument-AgNA. The code we have so far: makemid('AgNA','AgNA.mdd')myInstrument = icdevice('AgNA.mdd',… (Show more)

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toddchrist7

in EDA Software5 months ago (Show more)

Momentum Simulation vs. Controlled Impedance Line Designer Disagreement

I recently ran into an issue with a multi-layer board simulation where my Momentum simulation (and accompanying TDR view) disagreed with the results from the Controlled Impedance Line Designer (CILD). In order to isolate the problem, I created a new layout with a single layer board to see if the same mismatch occurred. It did - CILD as well as… (Show more)

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anhchu_iis in EDA Software2 months ago (Show more)

Edge mesh setting in Momentum

Dear all, We are em simulating a slab inductor at 263GHz using Momentum and got confusing results from different settings for the edge mesh width. The inductor is a 7.5x45um aluminium trace with a thickness of 3um. At 263GHz, the skin depth is ~160nm. We created two edge ports p1 and n1 for the simulation (see part 1 of the figure). In the… (Show more)

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malli1729 in Oscilloscopes1 week ago (Show more)

MXR104A power supply noise measurement with 1Mohms input + 50Ohms feedthrough termination

Hi, We need to measure power supply noise measurement for 0.82V,1.0V,1.2V,1.8V rails. Setup will be: 50Ω, RF176 Co-axial probe directly soldered across output capacitor, configure oscilloscope input to 50Ω and with lowest vertical division to measure the ripple. Low end scopes like DSOX3024A have offset ranges up to ±2V, but new scopes can't… (Show more)

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malli1729 (to pat_white) 1 day ago (Show more Show less)

Hi Pat_white, Thanks for the reply. I agree power rail probes are the best option to measure power supply ripple/noise. In current situation, power rail probes are not an option, because of their cost and our setups needs to be modified accordingly. Those were kept as future upgrade option. I explained the setup above with RG174 coax cable…

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rcard53762 in Signal Analyzers2 days ago (Show more)

How can I create a custom spectral emissions mask on a N9010B?

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bipin in Power Supplies2 days ago (Show more)

E3640A not responding for serial commands

Hi, I am using a E3640A programable power supply. Before I have used the same with Windows 7 Laptop using excel VB code, which was working. Now I am trying the same using a Windows 10 Laptop and with Python. But it is not working. So I went one level below and tried *IDN? in Tera Term, there also I am not getting any response. I checked the cable… (Show more)

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