LiteVNA64 VNA, Hardware Differences between 64-0.3 and 3.1 joe smith 2024-04-28 | A visual inspection of the latest hardware revision of the LiteVNA 64 and the previous release.
Spark Gap Transmitter + Tecsun PL-990, How Far Does it Reach? Part4 joe smith 2024-04-25 | Video demonstrating the latest transmitter and a home made cohere. Test was ran using a Tecsun receiver to see how far the transmitter reaches using a car ignition coil as a source. Part I youtube.com/watch?v=npUjGqxPXSUPart IIyoutube.com/watch?v=a6kvHR9bSfgPart IIIyoutube.com/watch?v=LeHgUAyrXQAEEVBLOG thread eevblog.com/forum/rf-microwave/fly-swatter-ham-radio-transmitter
Transient Testing the KAIWEETS KM401 4000 count DMM joe smith 2024-03-17 | Testing the KAIWEETS KM401 DMM UNI-T UT181A Part 2 Comparing the grill starters waveform against the IEC standards.youtube.com/watch?v=1kYcY2ogmqoFeel free to join the thread:http://www.eevblog.com/forum/testgear/hear-kitty-kitty-kitty-nope-not-that-kind-of-cat/?PHPSESSID=nakhi153ramc9d1j055iih4nr3The data for the meters I have tested may be found here: docs.google.com/spreadsheets/d/1cXzYpIoyVm9QJUju4KXqM22CEQZP3_xwWvDyeVwxTy4/edit?usp=sharing Answers to Frequently Asked Questions may be found here: docs.google.com/document/d/1gEPFeOZpsNSm0-7sA98w2P5XE5x77Oal9dQEYvQnF6g/edit?usp=sharing
Transient Testing the UNI-T UT33A+ 2000 count DMM joe smith 2024-03-15 | Testing the UNI-T UT33A+ UNI-T UT181A Part 2 Comparing the grill starters waveform against the IEC standards.youtube.com/watch?v=1kYcY2ogmqoFeel free to join the thread:http://www.eevblog.com/forum/testgear/hear-kitty-kitty-kitty-nope-not-that-kind-of-cat/?PHPSESSID=nakhi153ramc9d1j055iih4nr3The data for the meters I have tested may be found here: docs.google.com/spreadsheets/d/1cXzYpIoyVm9QJUju4KXqM22CEQZP3_xwWvDyeVwxTy4/edit?usp=sharing Answers to Frequently Asked Questions may be found here: docs.google.com/document/d/1gEPFeOZpsNSm0-7sA98w2P5XE5x77Oal9dQEYvQnF6g/edit?usp=sharing
SJL Instruments GigaWave 6400: 6GHz, 4-Channel Sampling Scope joe smith 2024-02-18 | Review of the GigaWave 9400 6GHz, 4-channel sampling oscilloscopeEEVBLOG, discussions about the GigaWave 6400:eevblog.com/forum/testgear/pocket-sized-6-ghz-1-tss-et-scope/msg5261496/#msg5261496SJL Instruments sjl-instruments.com
UNI-T UT125C Destructive Transient Test, The Most Robust UNI-T Tested? joe smith 2023-12-21 | Video testing the UNI-T UT125C to its limits. UNI-T UT181A Part 2 Comparing the grill starters waveform against the IEC standards.youtube.com/watch?v=1kYcY2ogmqoFeel free to join the thread:http://www.eevblog.com/forum/testgear/hear-kitty-kitty-kitty-nope-not-that-kind-of-cat/?PHPSESSID=nakhi153ramc9d1j055iih4nr3The data for the meters I have tested may be found here: docs.google.com/spreadsheets/d/1cXzYpIoyVm9QJUju4KXqM22CEQZP3_xwWvDyeVwxTy4/edit?usp=sharing Answers to Frequently Asked Questions may be found here: docs.google.com/document/d/1gEPFeOZpsNSm0-7sA98w2P5XE5x77Oal9dQEYvQnF6g/edit?usp=sharing
Improving a 50ohm Thru Terminator for my Oscilloscope using SPICE joe smith 2023-12-17 | Video demonstrating the use of SPICE to model an 50 ohm through terminator for improved return loss. My thread from 2016 showing modified terminators:eevblog.com/forum/testgear/pasternack-pe6008-50-thru-term/msg947602/#msg947602Graybeard's thread from 2019 including link to their video:eevblog.com/forum/testgear/inexpenive-50-ohm-feed-through-terminations/msg2548299/#msg2548299Lasmux DC coupled 2.7GHz Active Probe Project:eevblog.com/forum/testgear/12-ghz-active-probe-project/msg4973839/#msg4973839
Modified NISSEI RS-70 Digital SWR/Power Meter joe smith 2023-12-10 | In this video, I modify the NISSEI RS-70 in an attempt to improve its poor performance. My review of the NISSEI RS-70 youtube.com/watch?v=YFsKFLIfaPsInside the RS-70youtube.com/watch?v=lMuEunXzNY0QST review for the MFJ-845 http://www.arrl.org/files/file/ProductReviewsForDeb/2016/pr062016.pdfFollow the Watt meter thread on EEVBLOGeevblog.com/forum/rf-microwave/cb-and-ham-radio-techs-love-their-bird-wattmetersNLK Media RF Power Meters Tested and Compared. Not all Power Meters are equal!youtube.com/watch?v=KFnmCbbeca8My homemade in-line Watt meteryoutube.com/watch?v=JHsgbu7brYI&list=PLZSS2ajxhiQAI0dPGjJ5S44KLbpTq8Uc6&index=3
Spark Gap Transmitter, Car Ignition Coil & Simulated Rotary Gap Sound, Part3 joe smith 2023-12-09 | Video demonstrating what a rotary spark gap transmitter may have sounded like with an AM receiver. Part I youtube.com/watch?v=npUjGqxPXSUPart IIyoutube.com/watch?v=a6kvHR9bSfgEEVBLOG thread eevblog.com/forum/rf-microwave/fly-swatter-ham-radio-transmitter
Electronic Fly Swatter, Spark Gap Transmitter Sound Part2 joe smith 2023-12-05 | Video demonstrating what the spark gap transmitter sounds like using my antique Drake TR-4 radio. Part I youtube.com/watch?v=npUjGqxPXSUPart III youtube.com/watch?v=LeHgUAyrXQAEEVBLOG thread eevblog.com/forum/rf-microwave/fly-swatter-ham-radio-transmitter
Electronic Fly Swatter 160 Meter Spark Gap Transmitter joe smith 2023-12-03 | A simple 160 Meter ham band transmitter using a cheap electronic fly swatter as a source. Using my Signal Hound spectrum analyzer to show the effects of adding a second stage.I am not a ham....Part IIyoutube.com/watch?v=a6kvHR9bSfgPart III youtube.com/watch?v=LeHgUAyrXQAEEVBLOG thread eevblog.com/forum/rf-microwave/fly-swatter-ham-radio-transmitter
Fluke 101 Effects of vibration joe smith 2023-10-27 | After a post about how the Fluke 101 was sensitive to vibration, I thought I would have a look for myself. See the original posts and review here:eevblog.com/forum/blog/eevblog-1574-is-the-$42-fluke-101-multimeter-any-good
EEVBLOG 121GW DC mV Stability Test, Conclusion joe smith 2023-09-03 | Video showing my attempt to possibly explain the instability problems seen with my EEVBLOG 121GW when applying a 500mV source.For context, please see the following thread on EEVBLOG:eevblog.com/forum/testgear/brymen-bm789-360289/msg5031622/#msg5031622
Gossen Ultra, 121GW and Brymen BM869s stability joe smith 2023-09-02 | 500mV source from Fluke 731B reference. No warmup allowed. Just showing how unstable the EEVBLOG 121GW is compared with the other two meters.For context, please see the following thread on EEVBLOG:eevblog.com/forum/testgear/brymen-bm789-360289/msg5031622/#msg5031622
Solver64 Announcement, Dropbox Replaces Github Account joe smith 2023-08-28 | Direct link to my Dropbox:dropbox.com/scl/fo/j7pypmli6knwnrb2e7ejb/h?dl=0&rlkey=2lnag44rmdkx0f0cgk0x0jfriEEVBLOG link to my software development area:eevblog.com/forum/rf-microwave/nanovna-custom-software
Inside the NISSEI RS-70 Digital SWR/Power Meter joe smith 2023-07-30 | In this video, I take a deeper look at the NISSEI RS-70 in an attempt to determine why its performance is so poor. My review of the NISSEI RS-70 youtube.com/watch?v=YFsKFLIfaPsQST review for the MFJ-845 http://www.arrl.org/files/file/ProductReviewsForDeb/2016/pr062016.pdfFollow the Watt meter thread on EEVBLOGeevblog.com/forum/rf-microwave/cb-and-ham-radio-techs-love-their-bird-wattmetersNLK Media RF Power Meters Tested and Compared. Not all Power Meters are equal!youtube.com/watch?v=KFnmCbbeca8My homemade in-line Watt meteryoutube.com/watch?v=JHsgbu7brYI&list=PLZSS2ajxhiQAI0dPGjJ5S44KLbpTq8Uc6&index=3
Proper SMA RF Connector Repairs joe smith 2023-07-29 | Original video from IMSAI detailing their technique.youtube.com/watch?v=8Zke78fCbss
NISSEI RS-70 Digital SWR/Power Meter Review joe smith 2023-07-16 | Follow the Watt meter thread on EEVBLOGeevblog.com/forum/rf-microwave/cb-and-ham-radio-techs-love-their-bird-wattmetersNLK Media RF Power Meters Tested and Compared. Not all Power Meters are equal!youtube.com/watch?v=KFnmCbbeca8My homemade in-line Watt meteryoutube.com/watch?v=JHsgbu7brYI&list=PLZSS2ajxhiQAI0dPGjJ5S44KLbpTq8Uc6&index=3
Response to Viewer Comments about the Effects of HV on Crystal Resonance joe smith 2023-06-16 | Why did I almost damage my H4 VNA?What effect does high voltage have on capacitance and how to measure it?How much do the capacitors have to change to cause a +/- 10 Hz shift in resonance?Can a number 2 pencil be used to lower a crystal's resonance?Thanks for everyone's comments. Part 1 may be found here: youtube.com/watch?v=YmxHZox3lAA
Effects of High Voltage on Quartz Crystal Resonance joe smith 2023-06-11 | Does high voltage effect the resonant frequency of a quartz crystal. Here we risk a low cost NanoVNA H4 to find out.Part 2 where I cover most of the comments for this video may be found here:youtube.com/watch?v=6u2WSWI1SBc
Engineering Stories, Early Career Embarrassing Moments joe smith 2023-05-11 | The life and times of Joe Q Smith.
Applying 2kVDC to various revisions of the DT830 DMM joe smith 2023-04-23 | Original conversation may be found here:eevblog.com/forum/testgear/trashy-meters-redux/msg4817894/#msg4817894An old video explaining the transients I apply:youtube.com/watch?v=PJTJJodEuyA&index=3&list=PLZSS2ajxhiQBI0El63arJXQwrvsvaRaDTThe data for the meters I have tested may be found here: docs.google.com/spreadsheets/d/1cXzYpIoyVm9QJUju4KXqM22CEQZP3_xwWvDyeVwxTy4/edit?usp=sharing Answers to Frequently Asked Questions may be found here: docs.google.com/document/d/1gEPFeOZpsNSm0-7sA98w2P5XE5x77Oal9dQEYvQnF6g/edit?usp=sharing
Introduction to Waveguides using the LiteVNA, Part4, Calibration without nuts & bolts joe smith 2023-04-03 | This video demonstrates using a homemade standards to calibrate the VNA. EEVBLOG thread, Experimenting with waveguides using the LiteVNAeevblog.com/forum/rf-microwave/experimenting-with-waveguides-using-the-litevnaIntroduction to Waveguides using the LiteVNA, Part1youtube.com/watch?v=h-bxyxLQtIkIntroduction to Waveguides using the LiteVNA, Part2youtube.com/watch?v=qxH-a0cCY3UIntroduction to Waveguides using the LiteVNA, Part3youtube.com/watch?v=xe4Fy4Lpnqw
Introduction to Waveguides using the LiteVNA, Part3, 3D Printed Horns joe smith 2023-02-13 | This video compares various 3D printed plastic horns by looking at their radiation patterns and VSWR. Also shown is a simple experiment where we attempt to compare a few different solid materials placed inside of a waveguide. EEVBLOG thread, Experimenting with waveguides using the LiteVNAeevblog.com/forum/rf-microwave/experimenting-with-waveguides-using-the-litevnaIt was mentioned that The Signal Path channel made a video on 3D printed waveguides. The attached link takes you to what I believe they were referring to. He made a few horns and a filter. He's experimenting at much higher frequencies than I am and surface finish. youtu.be/bo8pQmKgwgw?t=1966During this video, I show a couple of printed horns from the following link. Maybe we can test them out in the future. antennatestlab.com/3dprintingIntroduction to Waveguides using the LiteVNA, Part1youtube.com/watch?v=h-bxyxLQtIkIntroduction to Waveguides using the LiteVNA, Part2youtube.com/watch?v=qxH-a0cCY3U
Introduction to Waveguides using the LiteVNA, Part2, The Frequency Extender joe smith 2023-01-16 | This video shows my homemade slotted line and using it to validate the frequency extender shown in Part 1. The extender is also used to compare various fixed attenuators. EEVBLOG thread, Experimenting with waveguides using the LiteVNAeevblog.com/forum/rf-microwave/experimenting-with-waveguides-using-the-litevnaIt was mentioned that The Signal Path channel made a video on 3D printed waveguides. The attached link takes you to what I believe they were referring to. He made a few horns and a filter. He's experimenting at much higher frequencies than I am and surface finish. youtu.be/bo8pQmKgwgw?t=1966During this video, I show a couple of printed horns from the following link. Maybe we can test them out in the future. antennatestlab.com/3dprinting
Introduction to Waveguides using the LiteVNA, Part1, Homemade Waveguides joe smith 2023-01-09 | This video shows my attempts to construct some homemade waveguides and experimenting with them using the LiteVNA. EEVBLOG thread, Experimenting with waveguides using the LiteVNAeevblog.com/forum/rf-microwave/experimenting-with-waveguides-using-the-litevnaI’ve been teaching microwave polarisation wrong! - A Level Physicsyoutube.com/watch?v=TWu4U-ngMjk
DMM Input Protection Vs NST joe smith 2022-11-28 | Video showing some of the parts pulled from handheld meters that were damaged beyond repair during my testing being exposed to the output of an NST.The data for the meters I have tested may be found here: docs.google.com/spreadsheets/d/1cXzYpIoyVm9QJUju4KXqM22CEQZP3_xwWvDyeVwxTy4/edit?usp=sharing Answers to Frequently Asked Questions may be found here: docs.google.com/document/d/1gEPFeOZpsNSm0-7sA98w2P5XE5x77Oal9dQEYvQnF6g/edit?usp=sharing
UNI-T UT61E+ DMM Perfect Zero Drift Shunt??? joe smith 2022-11-13 | The following quote was taken from the EEVBLOG forum:eevblog.com/forum/testgear/fluke-17b-thorough-review/msg4519526/#msg4519526Jiri Bekr,"UT61E+ is the only multimeter with classic shunt wire, that even when overheated, still has the same reading, no matter the shunt temp. I have overloaded the multimeter (1 minute at nominal current should be enough for CUT indication), and the measurement was still absolutely correct (after the CUT was done beeping). Any other multimeters begin showing more and more, until you get like 12A on display while just 10A is passing through the multimeter. Usually shunt wire gets hot at nominal current, begins to expand its length and increases resistance, so also increasing burden voltage, causing bad reading. Some SMD shunts are prone to this too, but not that significantly of course."PArt1 of my review of the UNI-T UT61E+ may be found here:youtube.com/watch?v=4rADgFqFFH8The data for the meters I have tested may be found here: docs.google.com/spreadsheets/d/1cXzYpIoyVm9QJUju4KXqM22CEQZP3_xwWvDyeVwxTy4/edit?usp=sharing Answers to Frequently Asked Questions may be found here: docs.google.com/document/d/1gEPFeOZpsNSm0-7sA98w2P5XE5x77Oal9dQEYvQnF6g/edit?usp=sharing
Demonstrating Solver32s Eye Diagram feature with the LiteVNA joe smith 2022-10-26 | In this video I go over how to use the new eye diagram feature built into Solver32 with the LiteVNA. I pull out my vintage LeCroy 7200 to verify the results. For more details on creating eye diagrams on a VNA refer to the following:eevblog.com/forum/rf-microwave/nanovna-custom-software/msg4458928/#msg4458928A few papers salukitec.com/resource/time-domain-reflection-tdr-impedance-testscdn.rohde-schwarz.com/ur/pws/dl_downloads/pdm/cl_manuals/user_manual/1173_9163_01/ZNB_ZNBT_UserManual_en_62.pdfsignalintegrityjournal.com/articles/432-s-parameters-signal-integrity-analysis-in-the-blink-of-an-eyehttp://teledynelecroy.github.io/SignalIntegrity/SignalIntegrity/App/Help/Help.html.LyXconv/Help-Section-1.html#toc-Section-1Links to a few professional videosRohde Schwarz, Understanding Signal Integrityyoutu.be/anX8QZMhVjI?t=677Anritsu, Signal Integrity testing with the ShockLine MS46524B VNAyoutu.be/tbyJdzYECv4?t=159Keysight, USB Type C Cable Compliance Test with Keysight VNA & Enhanced TDR Applicationyoutu.be/ejRdFSE7HR8?t=123Keysight, Signal Integrity at 400G and Beyondyoutu.be/XwyTtCkUpwA?t=59
Adding Eye Diagrams to Solver32 for the LiteVNA & V2Plus4 joe smith 2022-10-13 | For more details on creating eye diagrams on a VNA refer to the following:eevblog.com/forum/rf-microwave/nanovna-custom-software/msg4458928/#msg4458928
Solver32 Software Updates for the LiteVNA and V2Plus4 joe smith 2022-10-09 | Demonstration of latest updates to my software for the LiteVNA and V2Plus4 supporting unlimited memory storage. For more details, refer to the following link on EEVBLOG:eevblog.com/forum/rf-microwave/nanovna-custom-software/2125Intel paper: 1000BASE-T/100BASE-TX/10BASE-T Physical Layer Compliance Tests Manualcommunity.intel.com/cipcp26785/attachments/cipcp26785/embedded-core-processors/2456/1/1000BASE_T%20100BASE_TX%2010BASE_T%20Physical%20Layer%20Compliance%20Tests%20Manual.pdfSection: 1000BASE-T MDI Return LossThe BALUN uses a Mini-Circuits TC1-1-13M. The paper shows a start frequency of 1MHz where this transformer is spec'ed for 4.5M - 3G. Digikey still offers an evaluation board for this transformer (shown in previous picture). Datasheet may be found here:digikey.com/en/products/detail/mini-circuits/TC1-1-13M/13927704Datasheet for the ADT2-1T may be found here:minicircuits.com/pdfs/ADT2-1T.pdfWhile the TC1_1_13MA was setup as a current BALUN, the ADT2-1T was setup as a voltage BALUN. Attached showing the return loss of the four pairs on our 1Gb Ethernet after calibration. blog.minicircuits.com/demystifying-transformers-baluns-and-ununs
Keysight U1282a Review Part6, Life Cycle Test and Conclusion joe smith 2022-09-04 | Part6, Conclusion to my review of the U1282A. We life cycle the function switch and attempt to run an experiment for one viewer. Part 1youtube.com/watch?v=QFino110A0cPart 2youtube.com/watch?v=dAxCiMD0GJAPart3youtube.com/watch?v=4S5va8KOjLcPart4youtube.com/watch?v=BgoeNYmTlDEPart5youtube.com/watch?v=MEfUDnKJ4z0UNI-T UT181A Part 2 Comparing the grill starters waveform against the IEC standards.youtube.com/watch?v=1kYcY2ogmqoMy video comparing the U1282A's GDT protection with the more common MOV approach. This video was inspired after watching the EEVBLOG review below. youtube.com/watch?v=wYCGnYglRjYEEVBLOG reviews the U1282Ayoutube.com/watch?v=kajevAH8fqgVBE reviews the U1282Ayoutube.com/watch?v=7NGoXnQLgkw&t=1sFeel free to join the thread:http://www.eevblog.com/forum/testgear/hear-kitty-kitty-kitty-nope-not-that-kind-of-cat/?PHPSESSID=nakhi153ramc9d1j055iih4nr3The data for the meters I have tested may be found here: docs.google.com/spreadsheets/d/1cXzYpIoyVm9QJUju4KXqM22CEQZP3_xwWvDyeVwxTy4/edit?usp=sharing Answers to Frequently Asked Questions may be found here: docs.google.com/document/d/1gEPFeOZpsNSm0-7sA98w2P5XE5x77Oal9dQEYvQnF6g/edit?usp=sharing
Brymen BM789 Correcting Resistance Auto Range Hunting w/ Firmware Version 78911 joe smith 2022-08-31 | Discussion of the problem may be found here:eevblog.com/forum/testgear/brymen-bm789/msg4349518/#msg4349518
Keysight U1282a Review Part5, Destructive Transient Testing joe smith 2022-08-29 | Part5, We repeat our open fuse high voltage test and then begin transient testing the U1282A. Does it fail at the same level as the first Keysight meter I tested, or does 6X the cost suggest a more robust design. Watch and find out. Part 1youtube.com/watch?v=QFino110A0cPart 2youtube.com/watch?v=dAxCiMD0GJAPart3youtube.com/watch?v=4S5va8KOjLcPart4youtube.com/watch?v=BgoeNYmTlDEUNI-T UT181A Part 2 Comparing the grill starters waveform against the IEC standards.youtube.com/watch?v=1kYcY2ogmqoMy video comparing the U1282A's GDT protection with the more common MOV approach. This video was inspired after watching the EEVBLOG review below. youtube.com/watch?v=wYCGnYglRjYEEVBLOG reviews the U1282Ayoutube.com/watch?v=kajevAH8fqgVBE reviews the U1282Ayoutube.com/watch?v=7NGoXnQLgkw&t=1sFeel free to join the thread:http://www.eevblog.com/forum/testgear/hear-kitty-kitty-kitty-nope-not-that-kind-of-cat/?PHPSESSID=nakhi153ramc9d1j055iih4nr3The data for the meters I have tested may be found here: docs.google.com/spreadsheets/d/1cXzYpIoyVm9QJUju4KXqM22CEQZP3_xwWvDyeVwxTy4/edit?usp=sharing Answers to Frequently Asked Questions may be found here: docs.google.com/document/d/1gEPFeOZpsNSm0-7sA98w2P5XE5x77Oal9dQEYvQnF6g/edit?usp=sharing
Keysight U1282a Review Part4, Viewer Suggestions and Beginning of Destructive Testing joe smith 2022-08-22 | Part4, We look at the KeySight U1282A's burden voltage and attempt to measure some low value capacitors. We also look at over voltage, full wave rectified 220V, ESD, open fuse voltage brake down tests. Part 1youtube.com/watch?v=QFino110A0cPart 2youtube.com/watch?v=dAxCiMD0GJAPart3youtube.com/watch?v=4S5va8KOjLcUNI-T UT181A Part 2 Comparing the grill starters waveform against the IEC standards.youtube.com/watch?v=1kYcY2ogmqoMy video comparing the U1282A's GDT protection with the more common MOV approach. This video was inspired after watching the EEVBLOG review below. youtube.com/watch?v=wYCGnYglRjYEEVBLOG reviews the U1282Ayoutube.com/watch?v=kajevAH8fqgVBE reviews the U1282Ayoutube.com/watch?v=7NGoXnQLgkw&t=1sFeel free to join the thread:http://www.eevblog.com/forum/testgear/hear-kitty-kitty-kitty-nope-not-that-kind-of-cat/?PHPSESSID=nakhi153ramc9d1j055iih4nr3The data for the meters I have tested may be found here: docs.google.com/spreadsheets/d/1cXzYpIoyVm9QJUju4KXqM22CEQZP3_xwWvDyeVwxTy4/edit?usp=sharing Answers to Frequently Asked Questions may be found here: docs.google.com/document/d/1gEPFeOZpsNSm0-7sA98w2P5XE5x77Oal9dQEYvQnF6g/edit?usp=sharing
Keysight U1282a Review Part3, Non-Destructive Testing joe smith 2022-08-20 | Part3, Performing non-destructive tests on the KeySight U1282A's including low temperature operations, drop, chemical exposure. We also compare the meters response time with several other meters. Part 1youtube.com/watch?v=QFino110A0cPart 2youtube.com/watch?v=dAxCiMD0GJAMy video comparing the U1282A's GDT protection with the more common MOV approach. This video was inspired after watching the EEVBLOG review below. youtube.com/watch?v=wYCGnYglRjYEEVBLOG reviews the U1282Ayoutube.com/watch?v=kajevAH8fqgVBE reviews the U1282Ayoutube.com/watch?v=7NGoXnQLgkw&t=1sFeel free to join the thread:http://www.eevblog.com/forum/testgear/hear-kitty-kitty-kitty-nope-not-that-kind-of-cat/?PHPSESSID=nakhi153ramc9d1j055iih4nr3The data for the meters I have tested may be found here: docs.google.com/spreadsheets/d/1cXzYpIoyVm9QJUju4KXqM22CEQZP3_xwWvDyeVwxTy4/edit?usp=sharing Answers to Frequently Asked Questions may be found here: docs.google.com/document/d/1gEPFeOZpsNSm0-7sA98w2P5XE5x77Oal9dQEYvQnF6g/edit?usp=sharing
Keysight U1282a Review Part2, The Frequency Counter joe smith 2022-08-07 | Part2, After discovering that the U1282A's frequency counter has problems above 30MHz, I decided to try driving the meter with a different waveform as well as compare it with a few other low cost meters. Part 1youtube.com/watch?v=QFino110A0cMy video comparing the U1282A's GDT protection with the more common MOV approach. This video was inspired after watching the EEVBLOG review below. youtube.com/watch?v=wYCGnYglRjYEEVBLOG reviews the U1282Ayoutube.com/watch?v=kajevAH8fqgVBE reviews the U1282Ayoutube.com/watch?v=7NGoXnQLgkw&t=1sFeel free to join the thread:http://www.eevblog.com/forum/testgear/hear-kitty-kitty-kitty-nope-not-that-kind-of-cat/?PHPSESSID=nakhi153ramc9d1j055iih4nr3The data for the meters I have tested may be found here: docs.google.com/spreadsheets/d/1cXzYpIoyVm9QJUju4KXqM22CEQZP3_xwWvDyeVwxTy4/edit?usp=sharing Answers to Frequently Asked Questions may be found here: docs.google.com/document/d/1gEPFeOZpsNSm0-7sA98w2P5XE5x77Oal9dQEYvQnF6g/edit?usp=sharing
Keysight U1282a Review Part1, Initial Checkout joe smith 2022-08-06 | After 2000 of you crazy people decided to join this channel, I offered you a choice of which high end meter to look at. You chose the Gossen Ultra. With 20,000 of you now following, it seemed fitting to once again let you pick which meter to run. This time, you chose the Keysight U1281A. I wasn't able to locate stock and we ended up with its big brother. Part 1, we perform an initial checkout of the Keysight U1282A My video comparing the U1282A's GDT protection with the more common MOV approach. This video was inspired after watching the EEVBLOG review below. youtube.com/watch?v=wYCGnYglRjYEEVBLOG reviews the U1282Ayoutube.com/watch?v=kajevAH8fqgVBE reviews the U1282Ayoutube.com/watch?v=7NGoXnQLgkw&t=1sFeel free to join the thread:http://www.eevblog.com/forum/testgear/hear-kitty-kitty-kitty-nope-not-that-kind-of-cat/?PHPSESSID=nakhi153ramc9d1j055iih4nr3The data for the meters I have tested may be found here: docs.google.com/spreadsheets/d/1cXzYpIoyVm9QJUju4KXqM22CEQZP3_xwWvDyeVwxTy4/edit?usp=sharing Answers to Frequently Asked Questions may be found here: docs.google.com/document/d/1gEPFeOZpsNSm0-7sA98w2P5XE5x77Oal9dQEYvQnF6g/edit?usp=sharing
Homemade in-line RF Watt/VSWR meter for 1M-50MHz joe smith 2022-08-03 | Link to Dream On - Postmodern Jukebox ft. Morgan James (Aerosmith Cover):youtube.com/watch?v=Yq4KA0mUnC8More details about this project may be found on EEVBLOG:eevblog.com/forum/rf-microwave/cb-and-ham-radio-techs-love-their-bird-wattmeters
Assemble & Test an RF Transformer from a Kit joe smith 2022-06-05 | I bought an RF transformer kit to test how it compares against some others I have built, just for the fun of it.
Celebrating 20k subs, Announcing new DMM Poll joe smith 2022-05-04 | Link to the current list of proposed meters:eevblog.com/forum/testgear/hear-kitty-kitty-kitty-nope-not-that-kind-of-cat/msg3976493/#msg3976493Partial list at the time of this post:Brand model, requested by, link to manualHioki DT4282, Fungus, hioki.com/euro-en/products/testers/dmm-4/id_5803Sanwa PC7000, rsjsouza, overseas.sanwa-meter.co.jp/download/index.htmlAEMC MTX 3293B, Bogdan Oliver, aemc.com/userfiles/files/resources/usermanuals/Multimeters/MTX3292B-3293B_EN.pdfGossen Metrawatt Metrahit Prime M248A, joeqsmith (was it ever improved as someone suggested or was that a bunch of BS?)Brymen BM857S , Fungus, https://brymen.eu/wp-content/uploads/biall/102020/102020.KARTA_EN..2015-07-08.1.pdfTesto 760-3 , Remco Van Triest,UNI-T UT61E+, jspencerg, New unit to attempt to repeat the transient tests without any modifications
Farewell to LabView! joe smith 2022-04-22 | I'm a long time user of LabView but with new management comes a new company logo and a change in the licensing. If you're big on renting your software, this is good news for you. For the rest of us, it marks the end of an era. You can read more about it here:lavag.org/topic/22358-nis-new-software-subscription-modelforums.ni.com/t5/LabVIEW/NI-s-move-to-subscription-software/td-p/4215663?profile.language=enforums.ni.com/t5/LabVIEW/LabVIEW-subscription-model-for-2022/td-p/4204448?profile.language=en
Siglent SDG1032X Easy Pulse, Poor Quality Encoder Part II joe smith 2022-03-25 | We bought our very first Siglent product, a brand new SDG1032X Easy Pulse Arb which has a very poor encoder design. Doing a quick search on Google, found the following link. eevblog.com/forum/testgear/siglent-sgd2042x-rotary-encoder-poor-performancePart 1 youtube.com/watch?v=lpQnuxNDuy8
Siglent SDG1032X Easy Pulse Poor Quality Encoder joe smith 2022-03-22 | We bought our very first Siglent product, a brand new SDG1032X Easy Pulse Arb which has a very poor encoder design. Doing a quick search on Google, found the following link. eevblog.com/forum/testgear/siglent-sgd2042x-rotary-encoder-poor-performancePart IIyoutube.com/watch?v=kW7VEMmBBSA
Solver64 Software for the LiteVNA & V2Plus4 joe smith 2022-03-08 | This video demonstrates my latest software for the LiteVNA as well ast the V2Plus4. The software was written in LabView and is a 64-bit application. If you have comments or suggestions on the documentation, feel free to leave them on the EEVBlog site at: eevblog.com/forum/rf-microwave/nanovna-custom-softwareThe latest documentation and software may be found here:github.com/joeqsmithCharacterizing crystals eevblog.com/forum/rf-microwave/fun-with-crystal-filters/?PHPSESSID=lnr626eqefd2d4ah3el0jeiat2Making attenuatorseevblog.com/forum/projects/20db-rf-attenuator-seeking-feedback-to-improve/msg2898698/#msg2898698 My review for the NanoVNA V2 Plus 4youtube.com/watch?v=XaYBpPCo1qkThe NanoVNA, a beginners guide to the Vector Network Analyzeryoutube.com/watch?v=mKi6s3WvBAM&list=PLZSS2ajxhiQD2gftdurGQoyGpUM_HobNI&index=1
LiteVNA w/ Dislords latest firmware showing 5KHz sample rate joe smith 2022-02-15 | RIP LemmyOriginal video may be found here:youtube.com/watch?v=3mbvWn1EY6gIf you have comments or suggestions on the documentation, feel free to leave them on the EEVBlog site at: eevblog.com/forum/rf-microwave/nanovna-custom-software/msg3886823/#msg3886823The latest documentation and software may be found here:github.com/joeqsmithCharacterizing crystals eevblog.com/forum/rf-microwave/fun-with-crystal-filters/?PHPSESSID=lnr626eqefd2d4ah3el0jeiat2Making attenuatorseevblog.com/forum/projects/20db-rf-attenuator-seeking-feedback-to-improve/msg2898698/#msg2898698 My review for the NanoVNA V2 Plus 4youtube.com/watch?v=XaYBpPCo1qk
