hybridfree/eevblog-posts huggingface dataset:
New Member New Toy! Siglent SDS1104X-E - Page 1
Forum section: electronics / testgear

author: backyard_cnc
author_rank: Newbie
timestamp: December 29, 2023, 10:10:32 pm
content: Well Amazon showed up bearing gifts today so I figured I’d best sign up here so I have somewhere to look for answers. I’m sure there will be things come up that I need help with!I’ve had a number of analog scopes over the years , HP, Tektronix etc…., but this is my first digital and I must say it is pretty cool. Will take some time to incorporate the new features into my process but it sure looks like it’s gonna be fun. As soon as the slush fund for toys bounces back I’m planning to add the SDG2942X AWG to the bench as well. I do a lot of 2way radio communications work and I’m planning to work on my Arduino/Pi skill sets with an eye to developing a multi antenna/multi transceiver control switching system to allow for more flexible operations in my hamshack.Gerald VE4ACE

author: BillyO
author_rank: Super Contributor
timestamp: December 29, 2023, 10:23:51 pm
content: Welcome and congratulations on snagging a great scope!

author: Martin72
author_rank: Super Contributor
timestamp: December 29, 2023, 10:42:11 pm
content: Hi Gerald,Congratulations on your new scope, it shouldn't disappoint you.Together with the SDG2042X, which can be "upgraded" to 120Mhz, you have a good set of equipment.And bodeplot is really good on the siglents.Have fun trying it out.

author: backyard_cnc
author_rank: Newbie
timestamp: December 30, 2023, 11:46:19 pm
content: Well I downloaded and installed the latest firmware 6.1.37R10 today without incident. My scope came with 6.1.27R6 installed which according to the cal sheet included in the box puts it at the factory on 2021-10-30 so 2 years old before it even arrives in 🇨🇦!. As a matter of interest I also test loaded the old version 6.1.26 just in case I decide to try any upgrade scripts, which I understand may require this early version to work. I did buy the recommended wifi dongle as it might be nice to have this option at some point in the future.Lots of info to digest!
Siglent SDS5000x network fileshare access - Page 1
Forum section: electronics / testgear

author: ArnoTek
author_rank: Newbie
timestamp: December 29, 2023, 09:05:07 pm
content: SDS5000X - Saving Screenshots to a network fileshareThere is a very useful feature on the SDS5000X series of oscilloscopes that is not really documented. It gives you the ability to save screenshots etc., directly to a network fileshare without the need to use a USB stick. (I believe this also applies to other models.) The configuration is as follows:1. Create a fileshare for the scope to access on your NAS (e.g. Synology)2. Create a local user account on the NAS for the scope to use for access3. Give the just created local user account read/write access to the fileshare created above4. Grant the domain accounts that use the NAS access to the fileshare created above(This will enable the authorized users on the network to access the fileshare from their computer.)5. Connect the scope to the same LAN as the NAS6. Go toUtility > Menu > Service > SMB File Share > Clienton the scope7. Enter the drive letter that you want the scope to use for access8. Enter the server path as //[IP address of the NAS]/[fileshare name]Note: Use the IP address and not the server/NAS name9. Enter the NAS local username that was created above10. Enter the password for the NAS local user account created above11. Check the "Auto Connect" and "Remember Settings" checkboxes if desired12. Click on "Connect"From then on, when you access the file manager on the scope when saving/recalling a file, the fileshare will bebe available as the drive letter that you specified above.Any user (that you granted access to when creating the fileshare above) on the network will be able to access the files directy from their computer. No more need to swap USB sticks!

author: TheDefpom
author_rank: Frequent Contributor
timestamp: December 29, 2023, 09:42:26 pm
content: Thanks for this, I can confirm that it works on the SDS2000X Plus series too, I just did this to my (improved) SDS2104X Plus, slight difference with wording in the menu though...Utility > Menu > I/O > Net Storage
Is it possible to do IQ modulation/demodulation on CMU200 ?  - Page 1
Forum section: electronics / testgear

author: electronic_guy
author_rank: Regular Contributor
timestamp: December 29, 2023, 12:20:10 pm
content: Hi,I have a CMU200 base unit. Is it capable of doing IQ modulation and demodulation? I need to know which boards and software that I need for this.Thank you.

author: G0HZU
author_rank: Super Contributor
timestamp: December 29, 2023, 12:44:56 pm
content: I think you need the option B17 board to be fitted for IQ modulation. This is a large plug in board. Check to see if you already have it fitted.If it isn't fitted, I'm not sure it's worth spending the time and money to get one. The IQ bandwidth is only about 2.5MHz. This is quite low.Maybe watch this youtube video about fitting option B17. I've not watched it, but it probably will be useful to you.There are lots of other options if you want to experiment with IQ modulation. If you want to do modulation and demodulation, then have a look at the various SDR radios available.

author: colorado.rob
author_rank: Frequent Contributor
timestamp: December 29, 2023, 05:52:01 pm
content: The CMU200 is not a particularly useful tool for doing arbitrary IQ mod/demod.As G0HZU suggested, look into the various SDR platforms such as Pluto SDR or HackRF for this. The software is going to be a bit primitive compared to using dedicated test equipment. You will need to learn GNU Radio to get the most out of these tools.I have an Agilent E4406B with the 89600 VSA software for IQ demod and an HP E4433B for IQ modulation. I still find myself using my Pluto SDR 99% of the time. The only time I use the test equipment is when I need a reference implementation for something I am working on.
Pintech HVP 39pro (HVHF scope probe) - Page 1
Forum section: electronics / testgear

author: Plow
author_rank: Newbie
timestamp: December 28, 2023, 11:08:18 am
content: The Pintech HVP 39Pro is a <40kV 50MHz oscilloscope probe.The first small flyback transformer is driven by a 12v 16kHz 40% duty DC square wave.The second is a 50Hz 240v 6kV bug zapper transformer and driven with a 50Hz "modified sine" wave inverter (stepped AC square wave approximating a sine wave).The frequency and voltage checks true based on spark gap but I have no idea what the waveform should look like, is this what you'd expect?

author: Plow
author_rank: Newbie
timestamp: December 29, 2023, 04:31:25 pm
content: I tested it against the 10x probe in left column, 1000x probe in right column.
Micsig differential probe MDP-701 first look / serial number 00009 - Page 1
Forum section: electronics / testgear

author: NickyDoes
author_rank: Contributor
timestamp: October 18, 2023, 02:37:15 am
content: I received a Micsig differential probe a few days ago. Tonight, I found some time to make a quick video first look.Micsig MDP701700V p-pDC-150 MHz20x & 200x rangesEnjoy!https://youtu.be/wHUE18yj0kgEnjoy!

author: diodak
author_rank: Regular Contributor
timestamp: December 29, 2023, 01:14:40 pm
content: MDP700 is detected when connected to USB as a serial port on CH340. Is it the same with MDP701?By the way, I wonder why there is a serial port in such an "analog" device... maybe for programming? Or to change the version...
Siglent Power Supply bricked during upgrade - Page 1
Forum section: electronics / testgear

author: SeaMaster
author_rank: Contributor
timestamp: April 11, 2023, 07:55:17 am
content: Today I tried to update the SW on my SPD3303X-E. It reported success, but after restart the unit is stuck without FW and this is the start screen:when i try to connect to the device via USB or network it starts series of short seaming random beeps....I tried updating via Network or USB - no luck. It always reports "the file doesn't match the device".Any hints?

author: tautech
author_rank: Super Contributor
timestamp: April 11, 2023, 10:27:23 am
content: Yeah it’s a bit annoying FW updates must be done with EasyPower.Exactly which firmware were you installing as the message informs you it’s not a match for the PSU model.You can find the firmware download here:https://siglentna.com/service-and-support/firmware-software/dc-power-supplies/#spd3303xx-e-series

author: SeaMaster
author_rank: Contributor
timestamp: April 11, 2023, 06:53:01 pm
content: After getting that incompatibility message I tried both 3303x and 3303x-e updates. Both report the same. I presume that the reason is that the PS lost its indetification settings. Please look at the new image I just attached.I'm sure there should be a way, but the question is how can I get out of this rabbit hole....

author: tautech
author_rank: Super Contributor
timestamp: April 11, 2023, 07:55:10 pm
content: That’s weird, xyz ltd ?For urgent service you should contact Siglent in Ohio as I’m away from my resources for a couple more days.

author: tautech
author_rank: Super Contributor
timestamp: April 14, 2023, 09:51:31 am
content: HQ tech support recommends installing 1.01.01.02.07R2 FW and NOT a later version.

author: alexis6512
author_rank: Newbie
timestamp: May 12, 2023, 12:36:43 am
content: Quote from: tautech on April 14, 2023, 09:51:31 amI have the same issue as op, and I tried this but Easypower just displays "Failed to GetUpdateMode".

author: Finnaaah
author_rank: Contributor
timestamp: December 28, 2023, 04:42:17 am
content: Any fixes for this? The software crashed during my update and it seems completely bricked. Holding the knob on startup didn’t help :/

author: coromonadalix
author_rank: Super Contributor
timestamp: December 28, 2023, 07:00:47 pm
content: Tautech i think is out for the Hollidays be patient ...

author: Finnaaah
author_rank: Contributor
timestamp: December 29, 2023, 08:00:32 am
content: Figured it out, there's newer HW versions that prevents rolling back to the 1mV resolution update. Downloaded the latest version of EasyPower and used the latest firmware (SPD3303X_E_V1.01.01.03.10 on HW version 6.2) which fixed the problem
Keithley 2302/2306 PC Control Software????......... - Page 1
Forum section: electronics / testgear

author: Smokey
author_rank: Super Contributor
timestamp: July 09, 2022, 01:40:43 am
content: I picked up a Keithley 2306 from the ebay. Advertised as "powers up, no display". I ordered one of the remote display kits, but it hasn't come yet. Further troubleshooting to come...But the question of the day is, given this thing only has GPIB.... What PC side software is used to control it?Does Keithley/Tek provide a GUI, or do they expect you to make something in labview?The Kickstart program only lists 2306-LAN, not GPIB:https://www.tek.com/en/products/keithley/keithley-control-software-bench-instruments/kickstartWhat do you guys use for PC side control of something like the 2302/2306?

author: HKJ
author_rank: Super Contributor
timestamp: July 09, 2022, 07:01:29 am
content: You might be able to make a definition for TestController that can control and log from it.For GPIB interface the AR488 is the best option, TestController do not support that many GPIB interfaces.EEVBlog:https://www.eevblog.com/forum/testgear/program-that-can-log-from-many-multimeters/Download:https://lygte-info.dk/project/TestControllerIntro%20UK.html

author: Smokey
author_rank: Super Contributor
timestamp: December 30, 2023, 04:11:15 am
content: Does anyone have the installer for Keithley Kickstart software from before they started charging so much for it? My equipment is all old so I don't need the newest stuff anyway.
Hexagonal Dots in an Unfocused CRT Beam on Tek 2230 - Page 1
Forum section: electronics / testgear

author: BlownUpCapacitor
author_rank: Frequent Contributor
timestamp: December 28, 2023, 09:01:00 pm
content: Hey y'all! I've had this Tek 2230 for quite some time, and it's a wonderful scope. It has no issues and works perfectly.However, every time I unfocus the beam I notice tiny dots in the beam, as if there was a tiny honeycomb chain link fence in the CRT, like a shadow mask.This isn't a problem at all, but it has always made me ponder what it could be.Maybe someone who worked at Tek here knows the true answer.I've had people guess it was a Shadow Mask or Aperture Grill of a CRT, but this is a monochrome CRT so it shouldn't have one. Others have thought it was the collector mesh, but those are used in analog storage CRTs. This is just a regular oscilloscope CRT.Anyways thanks for taking a look here! I've provided some images below.

author: BrokenYugo
author_rank: Super Contributor
timestamp: December 28, 2023, 09:07:46 pm
content: Regular higher speed scope CRTs use post acceleration, several kV above the deflection plates. I think that's what it's for, probably a linearity thing using a mesh.

author: BlownUpCapacitor
author_rank: Frequent Contributor
timestamp: December 28, 2023, 09:18:52 pm
content: Quote from: BrokenYugo on December 28, 2023, 09:07:46 pmI don't think the CRT in the 2230 has such a mesh though.I know a scope like the 465B utilizes the mesh, and that mesh shows up in the schematics. (images provided below)However, the CRT circuit schematic of the 2230 does not show such an acceleration mesh.

author: colorburst
author_rank: Regular Contributor
timestamp: December 28, 2023, 09:44:07 pm
content: Quote from: BlownUpCapacitor on December 28, 2023, 09:18:52 pmAFAIK they all had a scan expansion mesh by that point; this one just doesn't have it drawn on the schematic. The same CRT 154-0861-00 is also used in the 2213A, where it does show the mesh:https://w140.com/tekwiki/images/e/e5/070-4733-00.pdf(page 163 in the pdf).

author: BrokenYugo
author_rank: Super Contributor
timestamp: December 29, 2023, 12:19:05 am
content: This sounds like the relevant patent.https://patents.google.com/patent/EP0277758B1
Aeroflex PN9000 phase noise measurement system - Page 1
Forum section: electronics / testgear

author: Leo Bodnar
author_rank: Frequent Contributor
timestamp: January 08, 2020, 06:37:42 pm
content: I have an Aeroflex PN9000 system main module without PC digitiser and software. These are often listed on eBay for anywhere between $200 to $20,000.From what I understand it is just a dumb frontend - mixer, filter, LNA and PLL loop - like HP 11848A.I have pulled all the modules out and did not find anything more intelligent than a GBIP controller. Just a bunch of almost homemade quality perfboards with simple PTH analogue circuits, relays and simple digital logic.Does anybody have one of them and can shed some light on how does it communicate with the rest of their system? Is there a known GPIB protocol? I doubt there will be anything parsable. If it is anything like 11848A then it is just bit-banging at a specified GPIB address.It is also known as NoiseXT/Aeroflex/Cobham/Weinschel/IFR/Marconi/Europtest and whatnot else PN9000...CheersLeo

author: Leo Bodnar
author_rank: Frequent Contributor
timestamp: January 10, 2020, 04:34:57 pm
content: This is how insert modules look inside. I believe HEF4738 is just a simple interface that latches GP-IB data in and out of parallel registers in individual modules.Leo

author: Gytis
author_rank: Contributor
timestamp: September 02, 2020, 09:54:45 pm
content: I was wondering if you had any progress on cracking into that PN9000 interface?

author: Dany
author_rank: Contributor
timestamp: October 16, 2020, 05:08:02 pm
content: hi,I have the original software for the PN8000 model.I think it might work for yours tooDany

author: NiaDebesis
author_rank: Frequent Contributor
timestamp: May 08, 2021, 10:50:21 am
content: Hi, I have the same system.You also need a spacial card that plug in in a ISA slot in the pc.You are forced to have WIN95 system to control the hardware.

author: nonlinear
author_rank: Contributor
timestamp: May 09, 2021, 08:05:41 pm
content: Hi.I also have such system equipped with Win98.Can send SW and picture of the card.

author: Krysz
author_rank: Newbie
timestamp: December 28, 2023, 11:35:27 am
content: HiDoes anyone have a service manual for this type?Thanks
Siglent SPD3303X-E FW update fail, unit bricked - Page 1
Forum section: electronics / testgear

author: Finnaaah
author_rank: Contributor
timestamp: December 28, 2023, 07:28:55 am
content: Hey allI just picked up a Siglent SPD3303X-E with my xmas bonus! I went to update it, and upon selecting the device in the upgrade menu the screen of the unit changed to the firmware update page, but EasyPower crashed before even showing the progress bar and the update status on the unit remained at 0%. After reloading EasyPower and trying again, it just gave the error "try again in firmware mode" and then after trying in firmware mode "failed to GetUpdateMode". So I tried rebooting, but it remained on that screenI've tried holding down the encoder while powering on, different firmware versions, everything I could find on this forum and in the manual. I should also note that commands sent in EasyPower would just return random characters, so I decided to download the most recent version of NI-VISA in case that was the issue (since the manuals I found specified version 5.4, I just installed that initially). The latest update seems to have helped a bit, as I can now read what commands return. Running *IDN? now gives "XYZ Co Ltd,V2.0,V6.2", so I assume it must have wiped the deviceI know a few others have experienced similar issues, so I thought I'd try my luck here.Thanks for the time

author: MathWizard
author_rank: Super Contributor
timestamp: December 28, 2023, 08:42:37 am
content: So you don't mean you were trying to hack it to the 1mV/1mA version, you just mean updating the firmware ?

author: rf-loop
author_rank: Super Contributor
timestamp: December 28, 2023, 08:52:37 am
content: Please inform whatHWandFWversion there originally wasbeforeyou start to update it and what was then more new version you try to update.So where from you have purhased it if it have so old FW that need update. So, what was reason to update?This need really carefully note about latest FW (and latest is from year 2022!! )FW update package have Revision history pdf and there read:Quote from: SPD3303X/X-E Firmware Revise History pdfThink carefully and logically what this really mean!If your unit is new and not very old stock it may have HW version V6.1If this is case, there is nothing to update because it must have just this latest FWand can not roll back to previous versions!If HW version is < V6.1 then it can not update to this latest!

author: Finnaaah
author_rank: Contributor
timestamp: December 28, 2023, 09:28:21 am
content: Quote from: rf-loop on December 28, 2023, 08:52:37 amI wasn't thinking straightMy device is V6.2, I Installed the newest version of EasyPower and flashing the most recent firmware worked. Thank youIn case anyone is interested in doing the same, don't! The 1mV resolution hack doesn't work for the latest HW versions
Pace MBT-250 Pump Short Run - Page 1
Forum section: electronics / testgear

author: Bill Kelso
author_rank: Newbie
timestamp: December 28, 2023, 10:26:19 pm
content: Hey,Picked up a Pace MBT 250 for cheap. Just the unit Less the attachments. Anyway two of the plug in Accessory connectors worked Ok.. # 3 on the right did Nothing after I plugged in my Pace Soldering iron. Dead. So I did some searching and found that the header connector on the Mian board had two bad cold solder joints.Resoldered them up and Bingo! It works fine like the Pace 250 MBT I have on my bench. Now here's the rub. Of course some electron monkey was in there playing repair tech. There is a sticker on the board that says"Won't Allow Motor to continuously Run"Well when you press the trigger on the Pace DE soldering tool it runs. But doesn't after run when you release the triggerBut..... Mine works and keeps the motor on for about 1 second. The unit I picked up stops the moment you release the trigger. However.. it does run fine and has plenty of Vacuum.Trying to figure out what circuit keeps the motor on for about 1 sec. I have the manual and I'm looking at Page 59. Now all I have to do is figure out how they delay the run Voltage on.Any Ideas?Also This unit does not have nor does it look like it was built with an internal Visa Filter as the one used on the front with the DE soldering tool. It Is " PPS -85 Serial # 03-08 056.I did see a thread here about Pace Motor Vacuum problems. But nothing on Motor run time.Thanks In Advance.

author: factory
author_rank: Super Contributor
timestamp: December 28, 2023, 11:09:51 pm
content: There are definitely two versions, one that keeps the pump running after you release the trigger and one that doesn't, the front panel was a lighter grey on one of them, don't know which was the older one, the motors failed open circuit in both after many years of use.Edit: for the MBT201 it describes this in the manual, only versions with an A after the model number, run the pump for a minimum of 1.2 seconds, this is branded as "Auto Snap-Vac".David

author: Bill Kelso
author_rank: Newbie
timestamp: December 29, 2023, 04:00:13 am
content: Thanks David: ...Than explains it. Thanks for the research.This post is in the wrong place...I made a Mistake posting here. Was not aware of the equipment area. Sorry Mr. Mod.Will be mor careful in the future. Now that I fixed the bad channel #3. I screwed up something else . Now it wouldn't let me change temp. It goes into the set mode but the up & down temp buttons do nothing...it just heats up.?I post over in the other area where it belongs.. Sorry again Mr. Mod
GW instek GPP-4323 no load display off - Page 1
Forum section: electronics / testgear

author: Veketti
author_rank: Regular Contributor
timestamp: September 24, 2023, 05:34:11 pm
content: Dear All,Could someone who has these GW Instek DC power supplies check whether nothing connected to the terminals it shows load? Mine shows on every channel >1mA, whether this is normal? It is brand new power supply and second already as the previous one had faulty channel 1...Thank you in advance.

author: Hexley
author_rank: Regular Contributor
timestamp: September 24, 2023, 07:51:01 pm
content: The readback accuracy for current is specified as +/- (0.3% of reading + 10 mA). So an error of +1.2 mA is well within spec.Pity that Instek does not publish the calibration method so owners could adjust things.FWIW, my unit has ~ 1mA indicated at no load on all channels except one -- Channel 4 indicates exactly 0 mA with no load. Luck of the draw.

author: Hydron
author_rank: Super Contributor
timestamp: September 25, 2023, 03:21:41 pm
content: It is actually possible to calibrate it using some undocumented SCPI commands, it's a bit of a pain though and really needs to be done with an automated setup (there are many calibration points). I never found time to write the script to do so (not my strong suit) and my lab is packed away right now so can't help much sorry, but it can be done - I played around enough to confirm that.

author: mawyatt
author_rank: Super Contributor
timestamp: September 25, 2023, 04:05:50 pm
content: Quote from: Hexley on September 24, 2023, 07:51:01 pmOurs behaves similar.Agree GW needs to make the self Cal available to users without the need to dredge thru a bunch of SCPI programmed routines/scripts.Best,

author: Hexley
author_rank: Regular Contributor
timestamp: September 25, 2023, 04:51:24 pm
content: Quote from: Hydron on September 25, 2023, 03:21:41 pmThat's pretty tantalizing, Hydron.Do you remember off the top of your head how you went about discovering the undocumented SCPI commands? That might give a head start to anyone who wanted to re-discover the trail you blazed...

author: przemo1268
author_rank: Newbie
timestamp: December 27, 2023, 03:12:33 pm
content: Hi!Does anyone have more information regarding the SCPI commands and method to calibrate the GPP-4323? The only sensible source of information I've been able to obtain so far is the service manual for the SPD3000X power supply (in the attachment), but that's a different manufacturer and a different device. I can write the calibration software, but to do that, I need to be sure of the entire procedure.

author: mawyatt
author_rank: Super Contributor
timestamp: December 27, 2023, 03:20:27 pm
content: See below.https://www.eevblog.com/forum/projects/firmware-mod-for-gwinstek-gpp-series-lab-bench-power-supplyBest,
Saintsmart DDS120 software download ? - Page 1
Forum section: electronics / testgear

author: makerman
author_rank: Regular Contributor
timestamp: December 09, 2015, 06:08:45 pm
content: Hi, i can't find the software on the manufacturer's website :http://www.sainsmart.com/sainsmart-dds-120-20m-50m-s-virtual-oscilloscope-silver.htmlI also can't join the Sainsmart forum since the license for their Recaptcha login has expired !I've of course searched on Google and this forum but no joy.Anyone know where i can grab it ?Thanks,MM.

author: makerman
author_rank: Regular Contributor
timestamp: December 09, 2015, 06:12:55 pm
content: Just found this :https://s3.amazonaws.com/Barsoom/Z0/Z00I0TW0/Z00I0TW0.zip

author: makerman
author_rank: Regular Contributor
timestamp: December 10, 2015, 10:27:39 am
content: Support sent me these links :https://s3-ap-northeast-1.amazonaws.com/sain-amzn/20/20-010-730/0430.ziphttps://s3-ap-northeast-1.amazonaws.com/sain-amzn/20/20-010-730/CD/DDS120.rarhttps://s3-ap-northeast-1.amazonaws.com/sain-amzn/20/20-010-730/DDS120+Driver.ziphttps://s3-ap-northeast-1.amazonaws.com/sain-amzn/20/20-010-730/DDS120-software-140916.ziphttps://s3-ap-northeast-1.amazonaws.com/sain-amzn/20/20-010-730/DDS120.ziphttps://s3-ap-northeast-1.amazonaws.com/sain-amzn/20/20-010-730/DDS120_2014_1_13.zip

author: heisenberg281
author_rank: Newbie
timestamp: December 22, 2016, 08:39:24 am
content: I just received an e-mail from SainSmart that provided me with a Dropbox link to version 1.5 of their software for the DDS120. Enjoy!https://www.dropbox.com/sh/rzxfia0bvhxpgwk/AADpJyxka11HUzifM4XeGtXda?dl=0

author: rsimiao
author_rank: Newbie
timestamp: December 27, 2023, 09:02:26 pm
content: Hi Heisenberg,Sainsmart deleted the file from dropbox, just wondering if you have it to share.ThanksRoberto

author: coromonadalix
author_rank: Super Contributor
timestamp: December 27, 2023, 11:46:46 pm
content: the s3-ap-northeast ..... seems to work, i can download from them, not the latest ...edithere's a thread :https://www.eevblog.com/forum/testgear/sainsmart-dds120-usb-oscilloscope-(buudai-bm102)/400/1.50 link still workinghttps://www.mediafire.com/file/4bkw7vsc7fy9755/SainSmart-DDS120-DDS140.rar/filehurry lolland the last thread link seems promising ??
Let yourself get seduced with the Advent calender from Batronix... - Page 1
Forum section: electronics / testgear

author: axantas
author_rank: Regular Contributor
timestamp: December 01, 2023, 05:57:13 pm
content: No, I am not affilated with anyone, but just got the information about the Advent Calendar at Batronix on their homepage.Who knows. If it fits, I can be seduced...

author: techneut
author_rank: Regular Contributor
timestamp: December 23, 2023, 07:53:29 pm
content: OK I now hate you,I already orderd the Sensepeek as a birthday present but I still hope that the last day doesn't has a 3032-R because I don't know if I can resist.Adicted, me ? Nooo

author: axantas
author_rank: Regular Contributor
timestamp: December 23, 2023, 09:35:19 pm
content: wij zijn niet verslaafd - - we are not addicted, techneut. It is all about bare necesseties.There are green apple, red apple, yellow apple - just apple, but all taste different.Today would have been a very interesting day. still more than one hour to go for an 2104xPlus...Curious about tomorrow.

author: techneut
author_rank: Regular Contributor
timestamp: December 23, 2023, 10:59:55 pm
content: I am sooo relieved

author: Fryguy
author_rank: Regular Contributor
timestamp: December 23, 2023, 11:27:04 pm
content: They got me !I got me a Siglent SDM3065X from the calender sale on the 17th just for fun . . .

author: axantas
author_rank: Regular Contributor
timestamp: December 24, 2023, 08:50:53 am
content: Quote from: Fryguy on December 23, 2023, 11:27:04 pmAh ja - this bench-apple is trying to lure me into a necessity already a long time...Due to the fact, that I try to declutter my small bench, I discovered something else: The Owon SMP 6053, which will be added now.

author: Fryguy
author_rank: Regular Contributor
timestamp: December 25, 2023, 01:56:05 pm
content: Ah yes , a nice small unit - i like the looks and its really small footprint on the bench . . .I'm just absolutely no fan of switchmode PSUsRight now i've got 8 PSUs (120W - 1KW) at my bench - all linear
Hantek TO1152 vs. MicSig TO1152 Tablet DSO's - Page 1
Forum section: electronics / testgear

author: Silver_Is_Money
author_rank: Regular Contributor
timestamp: December 24, 2023, 08:36:22 pm
content: Are these two tablet DSO's the same product?

author: electr_peter
author_rank: Unknown
timestamp: December 24, 2023, 09:26:43 pm
content: No, these are completely unrelated products from different manufacturers.

author: Silver_Is_Money
author_rank: Regular Contributor
timestamp: December 24, 2023, 09:37:54 pm
content: Quote from: electr_peter on December 24, 2023, 09:26:43 pmI had my hopes up that they would be the same.
LEADER LDC-822  Frequency Counter - Page 1
Forum section: electronics / testgear

author: samson
author_rank: Contributor
timestamp: December 23, 2023, 12:47:51 pm
content: Has any one Calibrate the Leader LDC 822 frequency counter. If so could you please explain the procedure.Thank you in advanced

author: 807
author_rank: Frequent Contributor
timestamp: December 23, 2023, 02:05:15 pm
content: According to the manual, the timebase is adjusted by a trimmer cap accessable through a hole in the bottom of the case. Of course, you will need to supply the counter with a suitably accurate frequency for the calibration to be meaningful.https://www.download-service-manuals.com/en/manual.php?file=Leader-3764.pdf

author: samson
author_rank: Contributor
timestamp: December 24, 2023, 08:24:39 pm
content: Thank you for the reply. In the manual it doesn't say which gate button to press to do the calibration. It's confusing.
Metrel MD 9055  clone of Brymen 786? - Page 1
Forum section: electronics / testgear

author: nightfire
author_rank: Frequent Contributor
timestamp: December 24, 2023, 02:03:33 pm
content: Was browsing some sites to look for some self-made christmas presents, and stumbled upon the Metrel MD 9055 multimeter at a german retailer:https://www.reichelt.de/multimeter-md9055-digital-60-000-counts-mtr-md-9055-p349455.html?&trstct=pos_3&nbc=1Looking at the specs and color, it is stunningly similar to the EEVBlog Brymen 786- but at double the price tag...Anyone that can shed a bit of light on that?

author: coromonadalix
author_rank: Super Contributor
timestamp: December 24, 2023, 02:13:59 pm
content: just buy the Brymen variant ....if they ae not competitive in pricing, simply move away

author: 2N3055
author_rank: Super Contributor
timestamp: December 24, 2023, 02:15:19 pm
content: Quote from: nightfire on December 24, 2023, 02:03:33 pmIt is not a clone. Brymen does act as OEM for many brands.Some VARs request customizations (like Sanwa or Amprobe) but some just change name and colour of rubber boot, like Greenlee or Metrel..EDIT: like coromonadalix says, just buy Brymen.

author: RFDx
author_rank: Regular Contributor
timestamp: December 24, 2023, 02:39:38 pm
content: Looks like Brymen 789, at least the body (dual temp sensors). The display is different and I don't see where they fit 60000 counts in there. The (multi) manual clearly shows the BM789 with the correct display.

author: Hydrawerk
author_rank: Super Contributor
timestamp: December 24, 2023, 02:52:11 pm
content: The LCD is just photoshopped in the picture.https://www.metrel.si/en/shop/DMM/digital-multimeters/md-9055.htmlHere it is all right.https://www.metrel.si/assets/banners/0415089001693990162.jpghttps://www.metrel.si/assets/banners/0890003001693990162.jpg

author: Hydrawerk
author_rank: Super Contributor
timestamp: December 24, 2023, 02:58:52 pm
content: https://www.eevblog.com/forum/testgear/brymen-bm789-360289/msg4838990/#msg4838990
Is there a battery option for the Rigol DHO802 DSO? - Page 1
Forum section: electronics / testgear

author: Silver_Is_Money
author_rank: Regular Contributor
timestamp: December 23, 2023, 04:20:50 pm
content: Is there an internal battery option, or failing that, is there an external battery pack that will meet the need for 12V and 4A? Is the 12V DC or AC?

author: ebastler
author_rank: Super Contributor
timestamp: December 24, 2023, 10:36:08 am
content: There is no room for an internal battery. You can connect an external USB-C power bank. The scope will negotiate a 15V supply, not 12V, so 3A is enough. (All DC, of course.)The DHO800 is not exactly a low-power design. At 45W consumption, typical power banks will only last you between half an hour and an hour.

author: Silver_Is_Money
author_rank: Regular Contributor
timestamp: December 24, 2023, 12:34:52 pm
content: Thank you! To get at least one hour of service from a power bank with the DHO802 how many mAh would a battery bank require? Might I be better served by an OWAN XDS3202E with it's internal battery option? By the time I add the price of a suitable external battery pack to the Rigol it's overall price will be closer to the OWAN with it's internal battery option installed.

author: ebastler
author_rank: Super Contributor
timestamp: December 24, 2023, 01:12:55 pm
content: As a first approximation, it's 3 Ampere * 1 hour = 3 Ampere hours = 3000 mAh. Multiply by the 15V voltage to convert to 45000 mWh. Then add a 20% margin for conversion losses. And if you buy a no-name power bank from AliExpress or such, add an unknown margin for shameless bragging/lying by the vendor.I don't know the OWON scope. Just as a general rule of thumb, Rigol, Siglent and GW Instek are considered the better "B brands"; other brands like OWON, Hantek, UNI-T etc. tend to be a tier below in terms of quality, support (firmware updates) etc.
Brymen BM869 / BC-86X software example - Page 1
Forum section: electronics / testgear

author: miro123
author_rank: Frequent Contributor
timestamp: March 17, 2022, 02:17:53 pm
content: Hello,I have Brymen 869s and brymen usb dongle BC-86XI struggling to get the communication up and running in Python or C++, as wel as on Linux or Windows platformMy question are.1. Can I find software example for communication with BC-86X /BM869s2. I run to to following problems - BC-86X is represent as USB HID . There is only one USB Output endpoint. How can I send command to this HID device if there is Output endpoint3. As far as I undersood - protocol requires to send <0x00 , 0x00,0x86,0x66 > device returns the BM869s Display status encoded in 27 bytes - Do I make correct assumption?I have attached the protocol descriptionThanks in advanceMiro

author: HKJ
author_rank: Super Contributor
timestamp: March 17, 2022, 03:27:00 pm
content: TestController supports it on Windows.Forum:https://www.eevblog.com/forum/testgear/program-that-can-log-from-many-multimeters/Download:https://lygte-info.dk/project/TestControllerIntro%20UK.html

author: Fungus
author_rank: Super Contributor
timestamp: March 17, 2022, 04:02:44 pm
content: Look at this:https://www.eevblog.com/forum/testgear/program-that-can-log-from-many-multimeters/

author: miro123
author_rank: Frequent Contributor
timestamp: March 17, 2022, 05:43:50 pm
content: Quote from: HKJ on March 17, 2022, 03:27:00 pmI start searching on this 93 pages blog but I haven't found it yet. Can you show me an example code reading the RAW data. snapshot from 3...10 line code should be sufficientAre you using this library -https://github.com/libusb/hidapi

author: HKJ
author_rank: Super Contributor
timestamp: March 17, 2022, 06:37:04 pm
content: Quote from: miro123 on March 17, 2022, 05:43:50 pmIf you run TC in debug mode it will list the bytes used for communication.

author: miro123
author_rank: Frequent Contributor
timestamp: March 17, 2022, 07:41:42 pm
content: Thanks I've got it.It works on python3 Ubuntu 20.04

author: miro123
author_rank: Frequent Contributor
timestamp: December 24, 2023, 01:13:42 am
content: I have been using my two Brymen869s in various data logging scenarios.In all cases I use the the original usb dongle -BC-86x.Here is short summary1. Using sigrock-cli - it works out of the box in Linux as wel as windows. Output can be integrated in python script# sigrok-cli --driver=brymen-bm86x:conn=0820.0001 --samples=100x820 0x1 are PID and VIDsYou can trace them back with lsusb commandThis one can be used too# sigrok-cli --driver=brymen-bm86x --samples=102. using python hid api - you need to decode the protocol itself. Installing python hid can hurdle beginer programmer. Advantage is - better integration in python. I have atached example script. I used to test stability of my brymen 869
Paint number for Leader LCR-740? - Page 1
Forum section: electronics / testgear

author: Stray Electron
author_rank: Super Contributor
timestamp: December 23, 2023, 02:41:52 pm
content: By chance does anyone here have the paint number for paint to match the paint color of the LCR-740 bridge? it's similar to the Tektronix blue. I have one in very nice condition except that it needs some paint touch up.While I'm at it, does anyone know if there's anything special about the earphone that came with them? I don't know how useful they are but mine came with all of the other accessories so I thought that I would pick up an earphone to go with it.
Oregon Analog Tools ASM7 mainframe for Tek 7000 series scope plug ins  - Page 1
Forum section: electronics / testgear

author: kbrill
author_rank: Contributor
timestamp: December 22, 2023, 06:40:29 pm
content: OREGON ANALOG TOOLS ASM7 MAINFRAMEDoes anyone have information , manual , schematic , or option list .I did locate schematic / parts list for the similar Tektronix NT7000I know from a letter I received from them over 20 years ago that the 3 wide mainframe could be configured as supporting either 2 TEK 7000 series scope amp vertical plugins (typically 7A13 or 7A22 ) along with a single 7000 series time base . or less commonly 3 7000 series amps .I just received a pristine, possibly unused mainframe which is configured differently . the right hand compartment has a different connector than Tektronix used , and appears to only have only the Power supplies otherwise ) supplies connected to it . (further inspection may prove otherwise )Backplane PCB is not fully populated by components suggesting numerous hardware configurations existed .Before going further I will be verifying power supply voltages and locations .Any Documentation / suggestions would be appreciatedThank you

author: kbrill
author_rank: Contributor
timestamp: December 22, 2023, 08:54:04 pm
content: Further inspections shows handwritten notation on motherboard tm500Connector in rightmost slot is mechanically compatible with a Tektronix TM500 series plug inApparent addition of a 2 additional power transistors on right most slot connector mounting bracketSuspect / hope this is a straight forward modification to enable usage of a Tek TM500 module in this slotGetting interesting .

author: David Hess
author_rank: Super Contributor
timestamp: December 23, 2023, 03:44:15 am
content: Huh, that is interesting but I guess not totally unexpected. Those mainframes are pretty rare so it is hardly surprising that the TM500 modification has not been documented before.
TS Digital Multimeter Viewer. - Page 1
Forum section: electronics / testgear

author: Pukker
author_rank: Regular Contributor
timestamp: December 22, 2023, 10:24:16 am
content: I would like to draw your attention to TS Digital Multimeter Viewer.Ts Digital Multi Meter Viewer is software for using a digital multimeter that can be connected to a computer as a data logger.Using this software, you can accumulate digital multimeter readings in real time and display them graphically.It can work with a lot of devices, multimeters, loads etc.Website is in Japanese, but Google translate helps us.Software is in Englisch.I think it is interesting software for who wants logging and big display on PC screen.It is Free Software.It works fine with Uni-T devices with HID interface.https://www-ts--software--jp-net.translate.goog/products/tsdmmview.html?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=nl&_x_tr_pto=wapp

author: coromonadalix
author_rank: Super Contributor
timestamp: December 22, 2023, 12:55:58 pm
content: thks i tough it was dead ....
Universal RF power meter, what to buy? - Page 1
Forum section: electronics / testgear

author: smaultre
author_rank: Regular Contributor
timestamp: December 22, 2023, 01:34:20 am
content: I need universal RF power meter compatible to calibrate HP, Wiltron, Agilent, R&S.. and other types of generators.Able to measure continuous and pulsed power. Logging and compare between channels. From 9KHZ to 50..90GHz with good precision.Not so expensive (as a R&S NRP three-path) with wide set of low cost sensors.
Is the Rigol or Siglent publicly traded in US or EU? - Page 1
Forum section: electronics / testgear

author: JeremyC
author_rank: Regular Contributor
timestamp: December 22, 2023, 03:27:02 am
content: Just wondering if Siglent or Rigol is/are publicly traded on US or EU market(s)?

author: gslick
author_rank: Frequent Contributor
timestamp: December 22, 2023, 04:42:21 am
content: Siglent and Rigol are both listed on the Shanghai Stock Exchangehttps://siglentna.com/news-article/siglent-technologies-co-ltd-successfully-listed-on-the-shanghai-stock-exchange/On December 1, 2021, SIGLENT TECHNOLOGIES CO., LTD. (“SIGLENT”, stock code: 688112.SH) was successfully listed on the sci-tech innovation board of the Shanghai Stock Exchange (SSE). SIGLENT has become the first company in the general electronic test and measurement instrument industry to list on the A-share market in China.https://int.rigol.com/news/company/20220408RIGOLIPORIGOL is Successfully Listed on Shanghai Stock Exchange (SSE) STAR Market Today to Start a New ChapterOn April 8, 2022, RIGOL Technology Co., Ltd. (“RIGOL”, stock code: 688337. SH) is officially listed on Shanghai Stock Exchange (SSE) STAR Market.
DMM Digits vs Resolution - Page 1
Forum section: electronics / testgear

author: koreamaniac101
author_rank: Newbie
timestamp: December 20, 2023, 09:36:19 pm
content: Hi All,I have a 34410A 6 1/2 Digit DMM and I'm trying to understand the resolution specs for it.I have two main questions:The datasheets specifies that with an integration time of 10NPLC, the resolution is 0.1ppm x RangeSo in the 10V range, that should be 1uVrms of resolutionBut in the in 10V range, with 6 1/2 digits displayed, you can only see up to the 10uV digit. So how can you have a 1uV resolution, but only see 10uV on display?The other question is that when I use SCPI commands to send the readings back to my PC, the readings are in this format:+4.97769430E+00Why is there 9 significant digits? Should I ignore the digits that go beyond the resolution/digits of the DMM? Are these readings just the raw ADC samples?Thanks for the help

author: Kleinstein
author_rank: Super Contributor
timestamp: December 21, 2023, 12:17:51 pm
content: AFAIK the display one goes to 6 1/2 digits. More is of little use anyway because of noise an drift. The ADC itself gets close (but AFAIK just a little short) to 0.1 ppm resolution with 10 PLC integration, but there is quite some noise. So the last few bits are not stable. The limiting factor is not so much the theoretical resolution / quatization at the ADC but the noise and drift. With averaging over multiple conversions the noise goes down, but only relatively slow, like the square root. With 100 PLC = 10 x 10 PLC averaged the 7 th digit may get somewhat stable (at least near zero).Like with many other meters the result send via GPIB can have more digits. The last ones are not at all meaningfull as only a limitited number of values are possible. With enough samples the same 9 digits numbers will repeat. The reading are not the raw ADC samples but the ADC samples multiplied with a high resolution (e.g. floating point, or maybe 32 bit) scale factor. If using the AZ mode there is the additional difference to the zero reading.One can ignore the last digits, but it does not hurt if the computer takes them into acount (e.g. for averaging, calculating a slope or noise).
Tektronix 5111 (non A) manual - Page 1
Forum section: electronics / testgear

author: Gianni
author_rank: Contributor
timestamp: April 12, 2023, 08:12:45 pm
content: I am seeking for the Tektronix 5111 (non A) manual (i.e. the 5103N with D11 CRT).I bought it by Artek Manuals but they seem to be disappeared (with my money). I knew them as a reputable firm, maybe they have some temporary problem.Thanks

author: Jwalling
author_rank: Unknown
timestamp: April 23, 2023, 08:51:55 am
content: Dave (the owner of Artekmedia) passed away around Easter.

author: LazyJack
author_rank: Frequent Contributor
timestamp: May 22, 2023, 09:43:18 pm
content: His wife is taking over the business, but obviously this sad event caused some disruption. They are getting back on track now.

author: Josec
author_rank: Contributor
timestamp: December 21, 2023, 06:34:10 am
content: I just find it here:https://bama.edebris.com/manuals/tek/5111CheersJose
HP 54701A Active Probe Noise Level - Page 1
Forum section: electronics / testgear

author: JoeyP
author_rank: Frequent Contributor
timestamp: December 21, 2023, 03:17:29 am
content: The user manual for HP 54701A 2.5GHz active probe shows a noise spec of <300mv RMS referred toOutput. That seems like an unbelievably high noise level, to the point that I'm wondering if it's a typo (but I haven't been able to find a correction anywhere). Compare for example the HP 1157A 2.5GHz active probe with a noise spec of <3mv RMS referred toInput. These are both 2.5GHz 10:1 probes, so converting the 1157A spec yields <300uv referred toOutput. If the 54701A spec were <300uvinstead of <300mv, that would make their noise spec identical, which is a lot more plausible. But, even assuming it IS a typo, the real value could be something different entirely, so I don't want to buy one without knowing. Can any of you owners of the 54701A shed some light on their real noise level? I have the 1157A probe and can confirm their noise spec is realistic, but it is only directly compatible with the so called "Autoprobe Interface" of their scopes. I'm considering buying a 54701A probe for use with other instruments since it has a standard N connector output and only minimal power/control requirements.