hybridfree/eevblog-posts huggingface dataset:
SDS1104X-E OS upgrade and no NTP. Help Please. - Page 1
Forum section: electronics / testgear

author: ex-egll
author_rank: Newbie
timestamp: December 20, 2023, 09:24:46 pm
content: Hi, first time here with a new SDS1104X-E. Reading through the threads here has been: Interesting, Enlightening, Baffling, Confusing ...... but, after a lot of reading and experimentation I managed to do the BW upgrade without killing anything. I have also installed licence keys for AWG, MSO and WiFi although I don't have the hardware for them yet.Last on the list (maybe it should have been first) was an upgrade to the firmware and the OS, mainly to get the NTP functionality. I am making the assumption that NTP can run with either WiFi or LAN connections to the Internet?My original setup was:Software Version 6.1.25R2UBoot-OS Version 8.1Hardware Version 01-05The latest Software Version I could find on the Siglentna site was V6.1.37R10.The latest OS was SDS1xx4X-E Operating System -V3 (Only For 4-Channel models) (Release Date 01.04.23 )The Update to V6.1.3.37E10 worked fine, bur I don't seem to be able to update the OS, nor can I sea a correlation between the version on the site Operating System -V3 and the OS on my Utility|Status screen of UBoot-OS Version 8.1.Hardware Version 01-05I extracted the files to a newly formatted FAT32 USB thumb drive (devicetree.dtp, rootfs.cramfs, sds1004x_e_udiskEnv.txt and uImage), powered down the scope, inserted the USB thumbdrive into the front USB port (nothing plugged into the rear one) and powered up the scope. it appeared to go through the normal bootup sequence. I left it for a few minutes then cycled the power. It booted up OK but there was no change to the information on the Status Page. Neither was there any sign of NTP on the UTILITY|DATE TIME page.I am sure I have made some basic nooby error in applying the update to the OS, can anyone help out please??ex-egll

author: tautech
author_rank: Super Contributor
timestamp: December 20, 2023, 11:27:55 pm
content: Welcome to the forum.To have NTP and logging capability the V3 OS need be installed.Link:https://siglentna.com/download/35545/?tmstv=1703106494The unzipped files must be in the root folder of a USB for the OS to recognise them and auto install at boot.Then search for your local NTP server IP and enter it into the NTP menu and select your time zone.There are additional settings for Sync to the sever to suit your requirements.

author: ex-egll
author_rank: Newbie
timestamp: December 21, 2023, 03:13:55 am
content: Many thanks for the reply tautech. What you suggested is pretty well what I did, but I tried it once more with a different USB stick. Lo and behold it worked! It could have been a falty stick, but I doubt it as I have used it for the firmware upgrade. I guess stranger things have happened, anyhow it worked and NTP is now available.Again many thanks for your response, and all the other help you have givenex-egll
Looking for E440xB Option 219 Noise Figure Measurement Hardware - Page 1
Forum section: electronics / testgear

author: zmetzing
author_rank: Contributor
timestamp: December 21, 2023, 09:02:16 pm
content: Hello all. I'm looking for the hardware +28V driver module (A7A13 Noise Source Driver Assembly) for my E4402B.(I've also posted this over in the Buy/Sell/Wanted, but some kind soul might help out a fellow amateur radio tinkerer with a spare card lying around.)Once obtained, I plan to look at duplicating the design. It doesn't seem like it would be a difficult bit of hardware to create .. it just switches on/off +28V for the noise source. However, this option seems to be as rare as hen teeth.Thanks,--- Zach
Full set of schematics of HP E3630A Power Supply - Page 1
Forum section: electronics / testgear

author: JOSEBEMBIBRe
author_rank: Newbie
timestamp: June 10, 2023, 05:53:43 pm
content: Hi,I´m looking for the full set of schamatics to repair and adjust an HP made in Korea HP E3630A. I found specs and service manual form Agilent but do not include any of the schematics.I´m readu to pay a reasonable price for a copy or better an original.Thanks

author: alm
author_rank: Super Contributor
timestamp: June 10, 2023, 07:46:58 pm
content: Agilent at some point updated the E36xx series manuals and removed the schematics, so you need to find an older version of the manual before they removed it.This service manualwas the second Google hit for me when searching for E3630a service manual, and appears to contain schematics.

author: JOSEBEMBIBRe
author_rank: Newbie
timestamp: June 10, 2023, 10:13:21 pm
content: Thanks for the info and the link. I have this, but the set is incomplete. At least the display board which include the trimmers for the display and tracking is missed.Maybe I should try to buy an older version (HP) manual.Rgds.José

author: IR_Geek
author_rank: Regular Contributor
timestamp: December 18, 2023, 02:43:02 pm
content: Old thread but in case somebody else is looking I've found the following manuals so far. Several came from manualslib and you have to search for Agilent AND HP. Haven't dived into web archives yet.YYYY-MM_Edition-ManualName1999-08_Ed06-Triple Output Power Supply HP Model E3630A ... 12pages, doesn't have appendix, so no schematics in this2000_04_Ed07-Triple Output Power Supply Agilent Model E3630A ... 29pages, has appendix, so parts list, schematics, troubleshooting (no component diagram)2007_10_Ed08-Triple Output Power Supply Agilent Model E3630A ... 10pages, doesn't have appendix, so no schematics in this2014_04_Ed11-Triple Output Power Supply Agilent Model E3630A ... 27pages, has appendix but no schematic or parts list but has component diagram including display board
Clampmeter brymen bm037 vs brymen bm078 - Page 1
Forum section: electronics / testgear

author: Johannsen
author_rank: Regular Contributor
timestamp: December 18, 2023, 11:03:57 am
content: Hi,I have to decide between the two brymen bm037 vs brymen bm078. I mainly need it at first instace for checking phases on a home installation but might be handy as well later for 24V switchboards, general electronic tests.So far I only used regular DMM to measure currentThe 37 seems newer, has 5ms inrush detection. Tbh I dont fully understand the datasheet's descriptions of those two.Are there are any fundamental differences between those two? I prefere a bit more the 37 as it's smaller. Unfortunatly it's lacking an averaging mode, has only min and max functionThanks
Power supply schematics - Page 1
Forum section: electronics / testgear

author: bluescoobie
author_rank: Newbie
timestamp: December 15, 2023, 03:42:41 pm
content: Hi all, small question about power supplies. In 2019 I ordered this linear power supply (https://www.komerci.de/shop/stromversorgung/Labornetzgeraete/trafo/qj3005eiii-labornetzgeraet-3-fach-2x30v-5a-regelbar-5v-3a-fest). As an electronics engineer I try to keep documentation of all equipment on my bench, just in case I will have to repair it. On the internet I find this power supply sold under many brand names. Has anyone happened to find the schematics or service manual of this power supply? Would be nice to have it!

author: mariush
author_rank: Super Contributor
timestamp: December 15, 2023, 10:24:38 pm
content: Not sure it's the same but i guess no harm posting a few schematics

author: bluescoobie
author_rank: Newbie
timestamp: December 18, 2023, 09:00:14 am
content: Thnks! Slightly different power supply, has LCD instead of LED display and adjustable OCP via up/down buttons (digital) instead of potentiometer
Mastech MY64 Multi function socket - Page 1
Forum section: electronics / testgear

author: StevenNi
author_rank: Contributor
timestamp: December 17, 2023, 01:04:58 am
content: Hi guys, it would be great if someone could help.Looking for something in the basement I found my good old Mastech MY64 multimeter, I would like to use it again but I lost its MS3204 Multi function socket somewhere so I can't measure capacitors and temperature.Does anyone know or have a diagram of how that Multi function socket is made, I would make one just right to have some fun.Here is a picture of what the multimeter looks like, and the MS3204 Multi function can also be seen in the picture.
FY6900 Stock power supply board Dimentions  - Page 1
Forum section: electronics / testgear

author: finos
author_rank: Contributor
timestamp: December 13, 2023, 12:18:39 am
content: Hello everyone !As the title says im looking if someone has the dimentions of the stock power supply PCB & screw possitions .im desinging a linear psu replacement while my gen is on it way from china and i want to have it here roughly in the same time as the borads from JLCpbc so there will be no wait .I have "studyed" all the videos from various Channels (especialy the 3 that SDG did desinging a new SMPS for the gen) but i cant find any that relesed the pcb layouts or gerbers so i can get the dimentionsAlso , the fan is a 40mm job right ?

author: finos
author_rank: Contributor
timestamp: December 14, 2023, 01:46:27 am
content: anyone got a idea?

author: ledtester
author_rank: Super Contributor
timestamp: December 14, 2023, 02:15:47 am
content: This video talks about a replacement supply for the FY6900 and you can find a link to the design files in the first comment:SDG #120 FY6900 Signal Generator Power Supply Modifications - SDG Electronicshttps://youtu.be/j9LFqGWDKOgUpdate:The SDG site is being revamped at the moment. A snapshot captured by the Wayback Machine is available here:https://web.archive.org/web/20220519224157/https://www.sdgelectronics.co.uk/fy6900-signal-generator-power-supply-modifications/However, that snapshot doesn't include the design files. I would send Steve a PM - his user name on this forum is SteveyG.

author: maxwell3e10
author_rank: Frequent Contributor
timestamp: December 14, 2023, 07:01:30 am
content: I bought this supply on ebay and it fitshttps://www.ebay.com/itm/172432850496Shipping to Greece might be a problem though.https://www.eevblog.com/forum/testgear/feeltech-fy6600-60mhz-2-ch-vco-function-arbitrary-waveform-signal-generator/msg3095148/#msg3095148

author: .RC.
author_rank: Frequent Contributor
timestamp: December 14, 2023, 07:59:32 am
content: I just run mine via the USB port. The power supply and design is different to what they were some years back.

author: finos
author_rank: Contributor
timestamp: December 15, 2023, 04:40:47 pm
content: Thanks you all for taking the time to reply .recently i found out that the "new" FY6900s are shipped with a newer psu (https://www.eevblog.com/forum/testgear/re-feelelec-new-arrival-fy-6900-signal-generator/msg4361509/#msg4361509) , that outputs a single rail of -some- other Vout that so it seems outputs just 5V ?The plan to "multiTask " and order the PCB & the awg at the same time its not a failed one since i wont know with what psu my generator shipped with ...we wait now :'‑(
Which Brymen? - Page 1
Forum section: electronics / testgear

author: Jbahler
author_rank: Newbie
timestamp: December 11, 2023, 11:10:29 pm
content: Hello, We are currently considering a Brymen multimeter/megger. We are curious as to what the differences between the BM887 and the BM878 are. Would anyone here have an idea or experience with either of these? Thanks!

author: 2N3055
author_rank: Super Contributor
timestamp: December 12, 2023, 07:42:11 am
content: I don't have onew but was considering getting one some time ago and was researching...I have 2 other Brymens for few years and they seem to be good quality so far.Simplest way to explain the difference is that BM887 is feature complete meter with Hi pot tester, and that BM878 is more HI pot tester, Earth current tester with slightly limited multimeter functions.BM887 :20Khz AC BWcurrent ranges from 600µA to 10ABM878Earth continuityHi pot resistanceHi pot resistance GO/No GO (compare mode)Hi pot PI / DAR (Polarization index & Dielectric Absorption ratio measurement)current ranges only 60/600mABM878 is more complete Hi pot tester and also Earth cont. tester. If you need Hi Pot tester primarily, that that is the one to have.BM887 is full multimeter with 1000V resistance mode. I guess that is for people who need a full meter and they occasionally want to cursory check if some device's insulation still holds hi pot....Those were my conclusions...In meantime I got a very good price on other HiPot meter and never have bought the BM878.Best,

author: Jbahler
author_rank: Newbie
timestamp: December 15, 2023, 10:21:49 am
content: Well, we ended up ordering the 878. It seems the best fit for our needs as we will mainly use the insulation testing function. As far as the meter functions go we carry a Keysight U1272A and that has become our go-to workhorse for testing anything a DMM can test!It appears that the BM878 has some basic logging functions as well such as, Min Max Avg while the BM887 does not.Also the ground continuity test will come in useful in our profession (Industrial automation engineers/technicians)
Agilent DSO8104A encountered license issues after upgrading conf - Page 1
Forum section: electronics / testgear

author: Smalzhao
author_rank: Newbie
timestamp: December 12, 2023, 08:06:34 am
content: hello！Recently, I received an Agilent DSO8104A oscilloscope and I hope to upgrade the hardware and operating system of this oscilloscope for a better experience. Therefore, I replaced the motherboard with H61, upgraded the hard drive to SSD, and installed the Windows 7 operating system. When installing the oscilloscope application, it prompted:"This software upgrade cannot proceed until all serverbased licenses have been returned to the server.With your oscillascope connected to the server,return the barromed licenses using the Utilites->Install Option License->Server License dialog".I had already installed IOlib suite before installing the oscilloscope application, and I saw on the official website of Keysight Technologies that this software does not require a license. Does anyone know what the problem is?

author: Focus
author_rank: Newbie
timestamp: December 15, 2023, 06:10:57 am
content: Keysight license manager uses the Windows host ID to key the licenses. This host id changes when the OS version is updated. You will need to contact Keysight to get the licenses re-hosted.Cheers,

author: Smalzhao
author_rank: Newbie
timestamp: December 15, 2023, 07:09:27 am
content: ThanksAfter testing and installing the oscilloscope application, I was able to successfully install it when I chose to run it as an administrator. However, I have another question. Where can I obtain the driver program for the acquisition board? After reinstalling the software, I do not have a driver to run the oscilloscope, and it cannot be downloaded from the official website of Keysight
ProsKit SS-331 replacement glass tube filters - Page 1
Forum section: electronics / testgear

author: akabek
author_rank: Contributor
timestamp: December 14, 2023, 12:55:20 pm
content: Has anyone found an alternative replacement for the filters used in the glass tube? Buying the pack of 4 on Aliexp seems ridiculous for the pricee.

author: giovannirat
author_rank: Regular Contributor
timestamp: December 14, 2023, 10:10:58 pm
content: I'm using this Generic Wool Felt 3 mm togehter with a hole punch set to produce the filters I need, but I don't know if all this is available in your country.....https://www.amazon.de/gp/product/B08QD71847/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1&language=en_GB&currency=EURhttps://www.amazon.de/gp/product/B019ZFHJBS/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1&language=en_GB&currency=EUR

author: akabek
author_rank: Contributor
timestamp: December 14, 2023, 10:50:24 pm
content: Thank you for the response. If generic wool felt works I can probably buy that from an art store. The hole punch kit is available on Amazon. Thanks again.

author: TheDefpom
author_rank: Frequent Contributor
timestamp: December 14, 2023, 11:22:53 pm
content: I put brass wool inside my tube to catch the worst of the debris, it makes the filter last a LOT longer.
Micsig DP750-100 differential probe - Page 1
Forum section: electronics / testgear

author: Randy222
author_rank: Frequent Contributor
timestamp: December 14, 2023, 08:10:06 pm
content: Not sure the etiquette here on EEVblog, revive an old thread that gives you the 120day "are you sure" warning, or start a new thread on basically the same thing?I flipped coin, came out "start new thread".So, this DP750-100 diff probe, low cost in comparing to others, is it good enough to do FFT on US mains 120-240vac(rms) 60Hz ?I need to seek out the dominant frequencies (noise) generated by VFD controlled motors. I assume the noise I am looking for has amplitude well about any noise this probe may throw in. Just checking with the forum.

author: tautech
author_rank: Super Contributor
timestamp: December 14, 2023, 10:41:30 pm
content: TBH it’s best to keep all about the same product in a single thread otherwise things get lost unless the OP of the primary thread keeps adding links to the other threads into the first post and/or builds a POI list.Ignore the forum warning and just make your post there.
Programming 'totalizer' function in oscilloscopes - Page 1
Forum section: electronics / testgear

author: khupys
author_rank: Newbie
timestamp: December 14, 2023, 12:05:43 pm
content: Hello?I have this question for some time about the oscilloscope in general.Recent o'scopes have a function called 'totalizer' As soon as this function is enabled, it starts counting pulses.But as I attempt to using it as general purpose 'counter/timer' it does not seem to allow setting the 'counting time'.I'd like to set the counting time(also called dwell time, gating time, etc.) and count only the pulses that came in during the set counting time.I am doing photon counting from an photomultiplier tube, which currently requires series of electronics chain including fast amplifier+pulse shaper+programmable pulse counter, all of which are already in an ordinary o'scope's hardware. If the o'scope allows to set the counting time and return the total counts via serial bus to the PC running LabView, I can get rid of these electronics chain and connect directly to the PMT output to the o'scope. It seems this can be achieved by rather simple firmware modification in manufacture's part.Any thought?
8753E 6Ghz Network Analyzer No Display - Page 1
Forum section: electronics / testgear

author: bigmarky75
author_rank: Newbie
timestamp: December 12, 2023, 07:44:27 am
content: Morning all.I snagged one of these from a company skip . Seems to power on and switches between Ch1 and Ch2 and preset works but no display. Is there a chance it might still work on external Screen ? Need to try and find an old monitor to test it on.Was calibrated last year so was working within the last 12 months for the Cal.CheersMarky

author: TheSteve
author_rank: Unknown
timestamp: December 12, 2023, 04:36:09 pm
content: A failed display backlight is reasonably common - you can see if there is something there with a flashlight, and of course try an external monitor.

author: bigmarky75
author_rank: Newbie
timestamp: December 13, 2023, 06:11:24 pm
content: Cheers Steve ill have a look this weekend.
Modifying an HP-8711C/HP8712C network analyzer from 75 to 50 ohm.  - Page 1
Forum section: electronics / testgear

author: prutser
author_rank: Regular Contributor
timestamp: February 27, 2021, 02:44:08 pm
content: I was able to buy an HP-8711C for not too much and could change it into a 8712C which has VNA capabilities. Unfortunately it is a 75ohm unit and I would like to use it for 50 ohm.I wonder if there are other people who looked into this or did change it. As far as I could see it should not be too difficult:- The RF in port is internally 50 ohm, the only diffrence is the 'N-SMA Connector' at the front. It has a built in series resistor of 25 ohms.So with replacing this, the input port is covered. (maybe this with a minimum loss pad for the other port is a reasonable compromise)- The transmission/reflection port is more difficult. As far as I could see the directional couplers need to be replaced for 50 ohm versions, but they are quite standard and available.- There are a few (~ 6) components which need to be changed (different value, I compared the partslist of the 50 ohm and the 75 ohm receiver PCB.)- The most difficult part: SMA connector on the PCB and the rigid cable to the front have to be changed for a 50 ohm version. (original probably hard to get or expensive)- Software wise, it 'thinks' it is a 75 ohm unit. On the receiver board are 2 ID pins, one is tied to Vcc and the other to ground. that has to be swapped for 50 ohm.probably the software then recognizes it as a 50 ohm receiver board.Anyone also looked into this, or tried it ?

author: eDan
author_rank: Newbie
timestamp: January 29, 2022, 06:47:24 pm
content: Hi,I came across your question regarding the conversion of a HP8711C from 75 ohms to 50 ohms.Did you solve your issue?I am trying to do the same and thought we might be able to correspond.I have a lot of documentation but not for the specific unit I have. The lowest unit which connects to the source output in myunit is a 8712-60055 as printed on a sticker on the PCB. I note that if thehard line to the S1 terminal is to be 75ohm, then the connector on the PCB also needs to be replaced.Which leads to the question are there other components which should be replaced?Tough to know without the schematics.dan

author: rainbow
author_rank: Contributor
timestamp: December 13, 2023, 01:55:31 pm
content: I have an HP 8713C 75 Ohm and I would like to make it 50 Ohm.Any progress?Thank you

author: lugaw
author_rank: Regular Contributor
timestamp: December 13, 2023, 02:39:23 pm
content: This guy replaced a few parts and he now have a 50ohm input.

author: rainbow
author_rank: Contributor
timestamp: December 13, 2023, 04:50:26 pm
content: Quote from: lugaw on December 13, 2023, 02:39:23 pmThanks lugaw. Seems feasible for the 8711C but the 8713C should have an HP directional coupler that you need to change and it costs a lot. Maybe it has an internal 25 Ohm resistor and nothing more but I can't find the service manual with schematics (only text).
agilent 8595e lo unlevel error - Page 1
Forum section: electronics / testgear

author: kasparoff
author_rank: Newbie
timestamp: October 20, 2023, 02:45:44 pm
content: Dear friends ! Good day !I need your help.I buy from ebay agilent 8595E+TG with LO UNLVL on the display (as i found later(.Keys answer very long time - may be who knows this symptom...First of all i check all power rails - all good.Cal out is also good - -20dbm at 300 MhzI read service manual and found section how to check this problem - there are two points on a13 board:bias - is okLo Sense - instead 2v i have 0VI broke all my eyes but I can`t find at schematics diagram where should this signal come fromTell me pls your advice or part of scheme with itmany thx!p.s. i have fsh3 + tg and standalone 2,7ghz generator +tek 3054 if you say to measure something

author: lugaw
author_rank: Regular Contributor
timestamp: December 13, 2023, 03:57:32 am
content: Google "HP 8590 Series Analyzers Service Guide.pdf" and "8590 CLIP 5963-2591.pdf"From the service manual:LO UNLVL (U)(H)Indicates that the analyzer local oscillator distribution amplifier is notfunctioning properly. This message may appear on the 8592L, 8593E,8594E, 8595E, and 8596E with Options 009/010, Option 009, orOption 010.
hp 8595E YTF problem (high band loss) - Page 1
Forum section: electronics / testgear

author: Tardz
author_rank: Newbie
timestamp: December 12, 2023, 02:11:41 am
content: Hi,I have a problem with my 8595E, the 2.9-6.5 GHz band has too much insertion loss, around 15dB flat. The low band works correctly.I know that this seems to be a common problem, and the question is: is it the RF switch or the filter.If the problem is the RF switch, there is nothing to do, but if it is the adjustments, is it possible to correct it.I have attached the image of the open YTF, we can see that no sphere is centered, is this normal for a YTF... the bw for a frequency configured at 5GHz is 29 MHz, Q=172 and insertion loss of 31.7dB.Normally the signal should have had a loss of 16.5±2.5dB, from the input to the high band output of the YTF.This measurement is made after a PRESET of the 8595E, FREQ=5GHz, SPAN=0...and the test is done on a 6GHz 8753ES VNA (the input attenuator of the 8595E is therefore at 10dB).Has anyone had this kind of problem managed to resolve it?RegardsYves

author: lugaw
author_rank: Regular Contributor
timestamp: December 13, 2023, 03:54:45 am
content: Someone tried fixing YTF like yours that have the spheres moved and it seems to have worked.https://www.simonsdialogs.com/2018/12/hp-5086-7803-yig-tuned-filter-and-switch-sytf-details-and-adjustment/

author: Tardz
author_rank: Newbie
timestamp: December 13, 2023, 03:42:18 pm
content: Thanks for the information, it will be very useful to me.
Siglent SDL 1000X - retrieve end of battery test or errors via SCPI - Page 1
Forum section: electronics / testgear

author: s_marc_g
author_rank: Newbie
timestamp: December 15, 2023, 10:58:43 am
content: Dear EEV-Community,I just got my SDL 1020X-E which I planned to use in a setup for battery cycle testing. While the control with pyvisa worked straight forward, even it is my first project with Python, I wonder whats the way to retrieve the end of the battery test or any occuring error conditions. As far as I presume at the moment, the only way is polling the state of the input. But I haven't found any command regarding the error state and which kind of terminating condition has been met at the end of the test.Any suggestions on that?Marc
ADL5960 Integrated Vector Network analyzer 10 MHz to 20 GHz - Page 1
Forum section: electronics / testgear

author: tszaboo
author_rank: Super Contributor
timestamp: December 11, 2023, 03:23:26 pm
content: I'm kind of speechless at the moment, but I think this is going to change EVERYTHING in terms of VNAs.Quotehttps://www.digikey.com/en/product-highlight/a/analog-devices/adl5960-analyzer-front-endThe way I understand the block diagram, you only need 2 "low speed" (Sampling 1-100MHz) ADC per VNA channer, and one of these ICs. From the image below, everything for a channel except the ADC and the DSP.Price is168 USDfor one off at Digikey. My jaw is still on the floor.I think we are months away of having very cheap 20GHz VNAs on the market.

author: switchabl
author_rank: Frequent Contributor
timestamp: December 11, 2023, 04:49:21 pm
content: Quote from: tszaboo on December 11, 2023, 03:23:26 pmYou still need a 10 MHz to 20 GHz synthesizer for the source and you need to supply the LO as well.Quote from: tszaboo on December 11, 2023, 03:23:26 pmDepends on how many k$ you consider very cheap. And months is probably overly optimistic. But definitely has potential to simplify VNA design quite a bit.

author: tszaboo
author_rank: Super Contributor
timestamp: December 11, 2023, 05:20:50 pm
content: Quote from: switchabl on December 11, 2023, 04:49:21 pmsynthesizer sure, and probably an FPGA sampling 4-8 channels. Maybe a DSP or even an ARM Micro is enough to handle 10MSPS ADCs.Those are "easy", there are single chip solutions for making 10 Ghz signals.What's cheap? Used VNAs go for about 1K/GHz, I think way below that.

author: dazz1
author_rank: Frequent Contributor
timestamp: December 13, 2023, 05:49:17 am
content: Quote from: tszaboo on December 11, 2023, 03:23:26 pmEven with the necessary added circuitry this is going to make it a lot easier to design a VNA. This will take VNAs in the same direction as DSOs. That is that the software will define the quality and difference between competing VNA products. The software will be / is the most expensive component on the BOM.
Can Siglent SA demodulate GFSK? - Page 1
Forum section: electronics / testgear

author: chrisb741
author_rank: Regular Contributor
timestamp: December 08, 2023, 02:23:41 pm
content: Can a Siglent SA such as the SSA3032X+ demodulate GFSK signals? or can it only do FSK?

author: bicycleguy
author_rank: Frequent Contributor
timestamp: December 10, 2023, 02:05:05 am
content: The Modulation Analyzer does have a Gauss filter selection under the FSK filter type. I have nothing to stimulate it with. BlueTooth is spread spectrum GFSK I think.Hopefully someone more knowledgeable will give more info.

author: chrisb741
author_rank: Regular Contributor
timestamp: December 10, 2023, 06:17:21 pm
content: What is the implication of spread spectrum?Im mainly interested in cheap 2.4ghz modules that uses GFSK such as nrf24l01 and other basic off the shelf modules such as zigbeeIs it possible to distinguish between unknown modulation types?Are there any the can read GFSK, the expensive ones dont even seem to?

author: I4E
author_rank: Regular Contributor
timestamp: December 12, 2023, 05:01:55 pm
content: Hi There ChrisWe are Siglent Distributors but new to them as we've always carried Rigol products. I saw your question and asked Siglent for you. Please see response below:_________________________________The Siglent SSA3X Plus, SSA3000X-R, SVA1X, SHA850A, SSA5A can do MA option.And hence GFSK as well but its extra option licence._______________________________________I didn't see the second part of your question so didn't ask that. Have you tried going back to the company that sold the unit to you? They should answer these questions for you or atleast give you details of the application engineer at Siglent to help with this?I hope that helps. Warm wishes for a fantastic Christmas!SincerelyJoyInstruments 4 Engineers Ltd ( Located in the UK)https://www.instruments4engineers.com/Authorized Rigol DistributorsAuthorized Micsig DistributorsAuthorized Siglent DistributorAnd many more

author: chrisb741
author_rank: Regular Contributor
timestamp: December 12, 2023, 11:21:16 pm
content: I dont have an SA yet, to me that sounds like it can do the G versions of the modulations, just needs a license.I also just realized that I can use transceivers with supported modulation types if GFSK doesnt work

author: tautech
author_rank: Super Contributor
timestamp: December 13, 2023, 03:58:36 am
content: Quote from: chrisb741 on December 12, 2023, 11:21:16 pmNot outta the box.You have 120 hrs runtime free for all options as std.
Keysight DSOXPERFMSO - Almost $4k - Why?? - Page 1
Forum section: electronics / testgear

author: EE-digger
author_rank: Frequent Contributor
timestamp: December 11, 2023, 04:17:09 pm
content: I know California harbors a lot of strange thinking but almost $4k for an MSO upgrade? An MSO upgrade had been around $1900 or so and included just license and logic cable.What am I missing with this option? It does have the word "performance" appended but I don't see any specs that indicate improvements in clock rate, max signal speeds, etc.Also, has anyone ever tried to purchase an MSO option sans cable. I have multiple spares and don't want to pay $1k for yet another. The scope is fully licensed otherwise and I'd like to keep it that way. I am fully aware of the other wonderful "upgrade" options available and have enjoyed them

author: tszaboo
author_rank: Super Contributor
timestamp: December 11, 2023, 04:25:28 pm
content: Its the sticker price. If you don't like it, click the "Get a quote button"

author: J-R
author_rank: Super Contributor
timestamp: December 11, 2023, 05:35:12 pm
content: I think the "PERF" part is referring to the fact that this specific SKU is only for the high performance scopes, so just the 1GHz 3000 X-Series and 4000 X-Series. The 1GHz DSOX3000 series is $15k - $20k, and the DSOX4000 series starts at $7k. So the MSO upgrade list pricing seems within the realm of reason for someone who can handle such a price bracket already.Were you maybe looking at this previously for around $2k?https://www.keysight.com/us/en/product/DSOX3MSO/infiniivision-3000-x-series-oscilloscope-mso-upgrades.htmlBuying the license without the cable might be possible, talk to your sales person? Another option would be to sell the cable.

author: TheSteve
author_rank: Unknown
timestamp: December 11, 2023, 06:59:05 pm
content: Wonder if you get a higher sample rate/more options, or if it just costs more because the scopes cost more.

author: MadTux
author_rank: Frequent Contributor
timestamp: December 12, 2023, 02:24:24 pm
content: Well, $4k buys you a nice Rigol or Sigilent and since Keysight is such a nice company, I'd reconsider, where I dump my money at
Lecroy WaveSurfer 424 Hardware Upgrade  - Page 1
Forum section: electronics / testgear

author: sprit
author_rank: Regular Contributor
timestamp: March 25, 2023, 03:26:42 pm
content: Hi all, have a nice day.I have a WS424.This one is old so I wanted to upgrade it: find a motherboard and put it all back in place and it should work fine. But no, things are not as I thought, when I try to plug this PCI card into the new motherboard it can't start, the fan doesn't spin, doesn't do anything. I thought the PCI cards were damaged but when I put them back in the old motherboard it worked fine. I don't know where to start. Has anyone tried the motherboard upgrade on this series? Can you guide me? The motherboard I am trying to upgrade is socket 775. Thanks for your help. Wishing everyone a nice day.Sincerely

author: xti_k
author_rank: Newbie
timestamp: December 12, 2023, 11:54:56 am
content: hi,did you used the old HDD? or the mobo wont even boot?by any chance can you do an immage of your HDD? i have same scope but HDD has bad sectors and cannot do a fresh installation (suspect the mobo is broken).many thanksChris
Calibrating a Philips PM2525 - Page 1
Forum section: electronics / testgear

author: watchmaker
author_rank: Unknown
timestamp: December 11, 2023, 04:20:36 pm
content: I know I will be told if this is the wrong place to post. Thanks in advance.I have a somewhat useless but interesting PM2525. Posted about it in Repair. SOme interesting engineering in the unit.Paid next to nothing and I have the service manual which is readily available. But all repositories seem to use the same copy. This copy is missing about 4 pages in section 5 which explains the manual calibration procedure.My example is useful (I like the absence of lead swapping for current) but I would like to get it to match my Flukes and HP DMMs.I did download the SM for the PM 2535 which has the complete calibration tables but uses a trigger button for entry which the 2525 does not have.So, does anyone have the complete manual calibration procedure for the PM2525? I am not willing to experiment with PM2535 manual (use "enter" instead of "trigger") because at my level, my PM2525 is "good enough" (agrees with everything else to the 4th digit).BTW, this has the same resolution as the Fluke 8840 or HP 3478. The motor driven selector and the added (albeit now superflous features) grabbed me. So it goes.THANKS!

author: AVGresponding
author_rank: Super Contributor
timestamp: December 11, 2023, 07:07:07 pm
content: The 2535 doesn't have a specific Trigger button either; it has Trigger options of Int and Single, two buttons. I wonder if this actually refers to the button on the PM9267 probe? Though the function of this is normally just a data holdIn any case, worst case scenario your calibration attempt doesn't work. I doubt you can brick the thing trying. The Enter button is the logical one to try.

author: watchmaker
author_rank: Unknown
timestamp: December 11, 2023, 09:47:44 pm
content: Quote from: AVGresponding on December 11, 2023, 07:07:07 pmThanks. I also think it is unlikely I would brick the thing; but... I like it too much (as an artifact) to take the chance. Kind of like an amateur "fixin" a 19th century Breguet timepiece. Usually does not turn out well.
Siglent SSG3000X or DSG800 series?  - Page 1
Forum section: electronics / testgear

author: kj7e
author_rank: Frequent Contributor
timestamp: December 10, 2023, 07:01:58 pm
content: Typically I have always preferred the Siglent line over Rigol (no real reason other than symmetry of gear), but I am leaning toward picking up a new DSG821. Mostly because of the compact size and portability of the DSG800 series. There is a good chance I would need to take this to some of my remote work sites and that is an extremely attractive feature. I have read over a few of the threads, it seems most kind of prefer the DSG800 over the SSG3000X, just looking to see if this is still the case.

author: tautech
author_rank: Super Contributor
timestamp: December 10, 2023, 07:20:04 pm
content: Depends on needs......output levels and/or frequency capabilities.....checks notes....easy hack to 3.2 GHz.

author: kj7e
author_rank: Frequent Contributor
timestamp: December 10, 2023, 11:51:18 pm
content: Honestly 1.5GHz and +13dBm will handle 99% of what I need. Both I know have the ability for some user freq expansion.
SDM3055 reading speed and storing - Page 1
Forum section: electronics / testgear

author: chrisb741
author_rank: Regular Contributor
timestamp: December 13, 2023, 12:02:12 am
content: Hi,The SDM3055 has a reported reading speed of 150/secWhen I set it to store data I only get about 60 recorded entries per secondIs it possible to store the 150 readings per second?

author: Kean
author_rank: Unknown
timestamp: December 13, 2023, 12:56:05 am
content: Did you select the Fast measurement mode?From the manual:Quote

author: chrisb741
author_rank: Regular Contributor
timestamp: December 13, 2023, 01:10:31 am
content: yep rate set to fast i get about 60 readings, slow is about 5Could it be another option?I'll check again

author: Kean
author_rank: Unknown
timestamp: December 13, 2023, 01:20:45 am
content: What measurement type? Some don't support Fast readings, and some only Slow.I don't have one of these, but I almost bought one so I have read the manual previously.

author: chrisb741
author_rank: Regular Contributor
timestamp: December 13, 2023, 01:36:40 am
content: I was measuring DCVFiltering is off

author: Kean
author_rank: Unknown
timestamp: December 13, 2023, 07:27:41 am
content: OK, I believe DCV should support "up to 160rdgs/s". As I don't have one here, I cannot help further.Maybe @tautech has some experience, or can follow up for you.

author: Tjuurko
author_rank: Regular Contributor
timestamp: December 13, 2023, 08:30:24 am
content: You can try to write down on an external disk. For SDM3065X (for SDM3055 it should be similarly), you need to do:AcquireSave ReadingU-disk Record.../externalRecord -> OnDone....Record -> OffI received data 1000 and 10000 Readings/s.

author: chrisb741
author_rank: Regular Contributor
timestamp: December 13, 2023, 08:55:57 am
content: Yep that's what I was doingThen counting t how many rows each second has
HP 6038A autoranging power supply repair/teardown - Page 1
Forum section: electronics / testgear

author: fmashockie
author_rank: Frequent Contributor
timestamp: December 10, 2023, 06:33:04 pm
content: New eBay score - a HP 6038A autoranging power supply - 60V, 10A, 200W. Got it for pretty cheap at ~$50 for parts/not-working. It had an interesting fault symptom so I thought it would make for a fun repair; plus, I dont have a PSU with this high an output.Never heard of an autoranging power supply before. It's an interesting concept. What are your thoughts on them? I hear they sacrifice some accuracy due to the PSU having to constantly calculate the max output throughout its range?First part of a video series I plan to do on repairing, calibrating, and a performance evaluation of this unit.
DSO Recommendation  - Page 1
Forum section: electronics / testgear

author: 9s12
author_rank: Newbie
timestamp: December 07, 2023, 03:45:19 pm
content: I repair automotive control units as a hobby, and I am looking to upgrade my TPS2024B. I am looking for a modern 4ch DSO for under $2k USD that can be used to capture CAN Bus ,LIN Bus and Flex ray signals of the control unit interfaces as well as capture signals of the embedded side, MCU I/O, etc..What's out there that's up to the task?Thanks for any advice.

author: bdunham7
author_rank: Super Contributor
timestamp: December 07, 2023, 04:20:27 pm
content: The first, most obvious point is that there isn't anything in your price range that is going to have the unique isolation characteristics of your TPS2024B. I have a TPS 2024 and still use it regularly, so in any case I'd suggest you not throw it out. Or if you do, please let us know the location of your dumpster!If the isolation isn't an issue, then the Siglent 2104X Plus is $1399 and there is a sale right now on an analysis bundle that has a 16-channel logic probe and all of the decoding options included for $266. This is what I have, and if you haven't used modern DSOs like this the increase in capabilities over your TPS will be mind-blowing. However, it will require some learning and adapting as well as tolerating the occasional bug.https://siglentna.com/news-article/permanent-analysis-bundle-on-your-new-oscilloscope/?pdf=40323

author: nctnico
author_rank: Super Contributor
timestamp: December 08, 2023, 07:00:00 pm
content: I'd take a look at Micsig's ATO series as these have some specific features for automotive use.

author: Andreas
author_rank: Super Contributor
timestamp: December 09, 2023, 04:03:18 pm
content: Hello,what about a PicoScope 4425A?https://www.picoauto.com/products/automotive-oscilloscope-kit/picoscope-4000-series-specificationsit has "floating" inputs (+/- 30V against each other Ground pin) which should be plenty for most 12/24 V systems.with best regardsAndreas

author: chrisb741
author_rank: Regular Contributor
timestamp: December 10, 2023, 06:32:52 pm
content: Quote from: bdunham7 on December 07, 2023, 04:20:27 pmWhere can I get a compatible logic probe for this scope? or is the official one the only one that works?

author: tautech
author_rank: Super Contributor
timestamp: December 10, 2023, 06:55:22 pm
content: Quote from: chrisb741 on December 10, 2023, 06:32:52 pmThe SPL2016 probe is supplied as part of the promo package bundle with the purchase of selected new DSO's:https://int.siglent.com/info/detail-74.htmlNormal price is USD369 for just the probe.

author: tautech
author_rank: Super Contributor
timestamp: December 10, 2023, 07:38:08 pm
content: Quote from: chrisb741 on December 10, 2023, 06:32:52 pmCheck the link to the DIY LA probe thread in the POI list here:https://www.eevblog.com/forum/testgear/siglent-sds2000x-plus-coming/
XY-mode Tek2445 trace shifted and tilted - Page 1
Forum section: electronics / testgear

author: ErnestB
author_rank: Contributor
timestamp: December 06, 2023, 02:22:52 pm
content: I have this older Tektronix scope a few months now. I was playing around in XY-mode and have measured some zener diodes with function generator connected to it, with current sensing resistor of 100 Ohm. I noticed that the curve has the expected zener shape, but was not centered around the zero (X-Y crossing). It was shifted some 1.5 divisions to the right. When no signal is connected I see a dot at that same shifted spot. When the test signal (sinus) of 6Vtt is connected I see a diagonal line (instead of a horizontal one), shifted that same 1.5 div to the right. In the normal mode (time sweep) I see no problems. I have tried 2 different func.gen's (same display). On my Siglent the line is centered and horizontal, as it should be. Any idea where this shift and tilt comes from? I have never noticed any deviation in time or amplitude direction when using it in the normal time sweep mode, actually quite accurate amplitude and period. There is obviously some offset/shift in XY-mode. Adjusting the offset voltage +/- of the func.gen. in only moves this diagonal trace to the top-right / down-left, at the same angle. The Ch1 amplitude (read from the X-axis) seems correct. TIAChanging the V/div doesn't change the angle of the diagonal trace. The amplitudes are correct.

author: ErnestB
author_rank: Contributor
timestamp: December 08, 2023, 02:58:30 pm
content: Update: It was the user error. Next day I could manipulate the Ch1 and Ch2 vertical controls to position the Zero exactly on the XY-crossing. So ignore my question :-)
High speed data capture for 3 phase power.  - Page 1
Forum section: electronics / testgear

author: HackedFridgeMagnet
author_rank: Super Contributor
timestamp: November 29, 2023, 01:21:29 am
content: HiWe ( a university) are looking to improve our data capture capability for 3 phase power. Especially important is high speed capture.We would like to measure 3 phase at up to 100kVA.Looking at transient response, harmonics, voltage, current, phase, efficiency, power.Hopefully with some sort of api to log and display stuff.It doesn't need to be portable as it would normally sit in the same lab but would need to be re-plugged into different parts of the system.currently we usehttps://www.keysight.com/us/en/product/PA2203A/integravision-power-analyzer-4-channels-3-phase-ac.htmlwhich are very good, but still have quite a few issues. Including the screen update rate ( would you believe).One option i have found ishttps://dewesoft.com/products/sirius-xhswhich provides 5 MHz bandwidth,15 MS/s, 16 bit. This would be enough for us. 1x HV for voltage, 1 x LV for current, we have the current transducers set up. They are time-synched too.QuoteDoes anyone have any opinions of or experience with Dewesoft equipment and especially software that they could tell me about?Does anyone have any other ideas for something suitable?We're not afraid "roll our own" but we cant compete with Dewesoft's specs.

author: TizianoHV
author_rank: Regular Contributor
timestamp: December 01, 2023, 09:53:03 pm
content: Hi,I have no experience with Dewesoft but I'm interested in this sector. It would be useful to know what you need to do (if it's not a problem). What bandwidth do you need (50Hz or high frequency drives...)? What you mean with high-speed capture (fast sampling or fast logging of rms values)?Since you already have the Agilent analyzer you could get a "cheaper" specialized power analyzer for "high speed capture" and use the Agilent for harmonics and for slower but high accuracy measurements.Regarding the Sirius-xhs, they seem a nice company. I watched some of the documentation and it seems all well done and detailed.They specify a CATII 1000V rating (same as Agilent), Could it be a limitation?

author: 2N3055
author_rank: Super Contributor
timestamp: December 01, 2023, 11:56:11 pm
content: Take a look at Picoscope offering. Maybe they have something..

author: HackedFridgeMagnet
author_rank: Super Contributor
timestamp: December 08, 2023, 12:08:52 am
content: We study all aspects of sub 1000V power delivery.Obviously want to make mains power inverter measurements, car chargers, load transients and also electric vehicle drive trains.I am not sure what the top sample rate we would be interested in is but 15Meg/samples/sec sounds plenty.I have been lent an other model unit.I will see what I can get out of it.
Use Signal Hound TG-124A as a standalone Source?? - Page 1
Forum section: electronics / testgear

author: smaultre
author_rank: Regular Contributor
timestamp: December 07, 2023, 05:33:24 am
content: Anybody has such experience?

author: jc101
author_rank: Frequent Contributor
timestamp: December 07, 2023, 11:55:32 am
content: It doesn't appear in Spike when connected to a PC, though it does enumerate as a COM port.There is a "TGStandalone.exe" app in the Spike installation directory. However, for me, it never connects to the TG124A, sits at 100% waiting to connect but never seems to.

author: smaultre
author_rank: Regular Contributor
timestamp: December 07, 2023, 06:18:09 pm
content: Quote from: jc101 on December 07, 2023, 11:55:32 amI think it's awaiting for a "start" command from a com, and attenuation(level) settings.Maybe somebody, who has a full set SA+TG, can sniff the com-usb port and IF port, for values and levels?Thank you, in my case the "standalone.exe" works fine!

author: jc101
author_rank: Frequent Contributor
timestamp: December 07, 2023, 06:20:18 pm
content: Hmmm, might give it another try if I get some time.I also have an SA, so I could sniff the USB if I get the time.

author: smaultre
author_rank: Regular Contributor
timestamp: December 07, 2023, 06:48:54 pm
content: It will be interesting for me! And also level and span of the IF from SA.