hybridfree/eevblog-posts huggingface dataset:
OpenHantek with Hantek6022BE on Win10 PC - Page 1
Forum section: electronics / testgear

author: heyarnold
author_rank: Newbie
timestamp: May 31, 2020, 03:37:28 pm
content: Hi, new guy here! I just got a Hantek 6022BE and after I got the manufacturer's software working on my Win10 PC, and played around with it a bit, I started looking around for open source software for it. That's when I discovered this forum and OpenHantek6022 (https://github.com/OpenHantek/OpenHantek6022). IMO it has the best user interface that I have seen so far. So, of course, I wanted to try it. I started by reading the excellent User Manual ( which IMO is better than the OEM manual).While reading I came across this paragraph in the manual:After starting the program, it searches for a supported device by checking the USB VID/PID of all connected USB devices. (ie: DSO-6022BE: VID 0x04B4 PID 0x6022 )If a scope is found, the firmware will be uploaded and changes the VID to 0x04B5. The PID of the DSO-6022BE/BL doesn't change.My questions are:1.) With the USB VID changed can the OEM Hantek drivers still be used? Since OpenHantek6022 changed the USB VID to 0x04B5 by ( from VID 0x04B4)2.) Do I need to get rid of the Hantek OEM SW and USB drivers and use Zadig (https://zadig.akeo.ie/) to install generic USB drivers for OpenHantek6022 to work? Why is this the case?3.) Will the stock OEM Hantek SW still work with the Zagdig USB drivers and with the USB VID changed the USB VID to 0x04B5?Sorry if this has been covered in other posts. I tried searching but couldn't find the information in a single thread. So I thought that it might be useful to cover it in a new thread.Please reply if you know the answers to my questions. Thank you.

author: Microcheap
author_rank: Frequent Contributor
timestamp: May 31, 2020, 05:54:03 pm
content: The thread you are looking for might be this one:https://www.eevblog.com/forum/testgear/hantek-6022be-20mhz-usb-dso/

author: heyarnold
author_rank: Newbie
timestamp: May 31, 2020, 09:43:01 pm
content: Wow, that's a BIG thread! How'd I miss that?Dedicated to Hantek 6022 users.Thanks for the direction!
Information Regarding Ailtech FM-100 Communications Service Monitor - Page 1
Forum section: electronics / testgear

author: TenSecondToaster
author_rank: Newbie
timestamp: May 31, 2020, 06:27:23 am
content: I am posting here looking for a manual of this product, or any information regarding how to use it or how to determine if it is broken or not. Please feel free to tell me if I am posting improperly or in the wrong place because I am just getting the hang of things on this website.[ Attachment Invalid Or Does Not Exist ]I have looked around on the internet and have only found a few mentions of the Ailtech FM-100 Communications Service Monitor. I am aware partially of what it is as radio testing equipment but I have kind of hit a dead end. The tube powers on, and the displays work but I am reluctant to probe around too much as I am scared to break anything that might be on its way out due to age. Any help would be more than welcome!

author: Simon
author_rank: Unknown
timestamp: May 31, 2020, 08:08:27 am
content: Please don't double post.
GW Instek FRA Software.... "revisit time" - Page 1
Forum section: electronics / testgear

author: peteb2
author_rank: Regular Contributor
timestamp: May 28, 2020, 12:15:25 am
content: Interesting that two years on their Bobe Plot Frequency Response Analysis App for MDO-2000EG series scope is nowhere to be found as a download from any of their websites! At least that's what we are finding. What links found care of Mr Google result in a redirect screen or jumping through the hoops using their main Support/Download page there's a point nothing happens further reinforcing reference to its non-existence.The notes refer to needing Ver 1.34 firmware. I'm going to put it out there is their a tiny chance someone has a copy please and willing to dropbox it etc... I'm aware it wasn't as capable as that on a $30,000 scope but it would be great for some hobby time dabbling... TIA.

author: nctnico
author_rank: Super Contributor
timestamp: May 28, 2020, 02:49:28 pm
content: Ask their support and they'll send it.

author: peteb2
author_rank: Regular Contributor
timestamp: May 31, 2020, 05:41:09 am
content: Just for the record, (should anyone ever stumble upon this thread) the way to access the required files from GW-Instek's site is to jump through the hoops for their Member Registration, confirm the email they auto-send you & then login.... (as is the case with most manufacturers).Bit of a brain-fart on my part not to have put 2 & 2 together, all happy with my new scope with latest FW plus the bode-plot App.
Tektronix TDS754D diagnostic test failure, dsp68kInMemTest - Page 1
Forum section: electronics / testgear

author: wukiduki
author_rank: Newbie
timestamp: June 10, 2018, 03:35:31 pm
content: hello!Recently got a tds754d oscilloscope, the function looks normal, but the processor self-test cannot pass.I have cleaned the PCB, the problem still exists.Does anyone know which chip is related to this error?Need some help.ERROR Log read via gpib：Code:THU JUN 07 13:06:34 2018 ERROR: diagnostic test failure, dsp68kInMemTest,** addr = 0x7028200 exp data = 0x55555500 actual = 0xff555500,** addr = 0x7028204 exp data = 0x55555500 actual = 0xff555500,** addr = 0x7028208 exp data = 0x55555500 actual = 0xff555500,** addr = 0x702820c exp data = 0x55555500 actual = 0xff555500,** addr = 0x7028210 exp data = 0x55555500 actual = 0xff555500,** addr = 0x7028214 exp data = 0x55555500 actual = 0xff555500,** addr = 0x7028218 exp data = 0x55555500 actual = 0xff555500

author: Haatveit
author_rank: Regular Contributor
timestamp: June 10, 2018, 07:51:56 pm
content: It could be a bad assumption, but since all the addresses tested get the same bit pattern wrong, I might suspect some memory address PCB traces could be corroded? I know that was a problem of many of these scopes. Electrolytic capacitors leaking and the following corrosion on the board itself.

author: madao
author_rank: Frequent Contributor
timestamp: June 03, 2020, 07:51:35 pm
content: Old questition, i know, but it may be helpful for other people with search word "dsp68kInMemTest"But, i want tell about this ERROR.I got a TDS754C from israelite surplus shop.This unit has same fail.QuoteReason: one of three bad SRAM for Tristar DSPU870(middle below ), U871(middle upper, this is bad), U872 (upper).GreetingsMattBTW: dsp68kD1MemTest = bad U1008 or U1009.

author: snoopy
author_rank: Frequent Contributor
timestamp: June 04, 2020, 03:38:39 am
content: I got a 784A that did a similar thing and everyone was saying that it was one of the memory chips but I located it to some dry solder joints on one of the big arse QFP chips on the main acquisition board. Use a fine dentist tool and carefully pull on each leg of the QFP and see if it is firmly soldered to its pad.
Tektronix 2465 Switches - Page 1
Forum section: electronics / testgear

author: mawyatt
author_rank: Super Contributor
timestamp: May 29, 2020, 07:03:38 pm
content: Hello,I've got a couple 2465 scopes that I've repaired and recapped. One scope has a broken AC power switch that has been made functional by super glueing the plunger Tip back on, the other scope has a broken Beam Finder switch that I can't repair. Anyone have a source for these switches??Thanks in advance,Best,Mike

author: tggzzz
author_rank: Super Contributor
timestamp: May 29, 2020, 09:13:03 pm
content: Find the xxx-xxxx-xx part number.Try qservice.tv, sphere, fleabay, and ask on telescopes at groups.io

author: med6753
author_rank: Super Contributor
timestamp: May 29, 2020, 10:33:35 pm
content: Digi-key has exact replacement for power switch.

author: mawyatt
author_rank: Super Contributor
timestamp: May 30, 2020, 01:15:53 am
content: Thanks!!Best,Mike

author: tkamiya
author_rank: Super Contributor
timestamp: May 31, 2020, 03:21:47 am
content: I have lots of for-parts-only TEK scopes. If you have problem finding a part, I'd be glad to take it from those pieces and send it to you.
HP 53310a opt 030 vs 031 - Page 1
Forum section: electronics / testgear

author: wd5jfr
author_rank: Regular Contributor
timestamp: May 19, 2020, 04:37:50 pm
content: For the hell of it I'm considering buying a HP 53301a so I can have some new fun or frustration and also if I can use it. I've got 2 Rb studs and a dead HP 5061A which probably has a bad Cs tube.. I see that both include the fourth BNC on the bottom right corner and go to 2.5 GHz. But other than 031 provide for digital RF communications, I can't understand what digital RF communications means and use.ThanksHank WD5JFR

author: Tomorokoshi
author_rank: Super Contributor
timestamp: May 19, 2020, 05:25:14 pm
content: Option 30, Channel C, is included in Option 31. Here is the User's Guide for Option 31:http://userequip.com/files/specs/826/HP%2053310A%20Opt.%2031%20User.pdfIt appears the main features from the manual are:- Software to support some automatic measurements- Internal downconverter for higher resolution measurements- Increased sampling rate. Note: This appears to be 8 MHz. (This was 1992, after all.)Here is the overall datasheet:https://literature.cdn.keysight.com/litweb/pdf/5966-4092E.pdf

author: wd5jfr
author_rank: Regular Contributor
timestamp: May 19, 2020, 07:08:20 pm
content: Thanks for the 2 links that I was unable to find. Now I can forget about opt 030.

author: SoundTech-LG
author_rank: Frequent Contributor
timestamp: May 30, 2020, 09:13:40 pm
content: Questionable PS schematic...
Adding PRO option to Fluke OneTouch Series II - Page 1
Forum section: electronics / testgear

author: martonbaksa
author_rank: Newbie
timestamp: May 29, 2020, 06:46:32 pm
content: Hi!I got snagged on another eBay deal. I got a fluke OneTouch Series II for about $45. I use it to find and ping other devices on the network and for that it works a treat. The bad part was that I got screwed because the seller claimed it had the PRO option but it didn't. I recieved $10 compensation. I am wondering if there is something I can do in order to add this option because the hardware is capable of all the features, it is just softblocked off. It says I can try this feature 13 more times to evaluate it etc.. for anything pro. Is there a firmware I can flash to fix this?(PS. I don't see this as being immoral because neither Fluke or NetAlly, the new company that owns this range would support this meter anymore and I couldn't do this without buying a whole new meter which is such a waste of a fluke.)Best,Marton(edit: clarity)

author: jc101
author_rank: Frequent Contributor
timestamp: May 30, 2020, 07:58:53 am
content: I'm pretty sure the Fluke OneTouch Series II will only do 10/100 networking, I think you'd need the OneTouch AT series to get support for 1Gb.

author: martonbaksa
author_rank: Newbie
timestamp: May 30, 2020, 07:14:49 pm
content: Sorry!That's not what I meant. I know it won't do GE networking but there are other pro features that I would love to use such as 'key device ping' or 'web control', which I am able to do but only 15 times before it locks me out of that feature. Do you have any tips on how to remove that limitation?Thank you!Marton
uCurrent - minimum measurable current - Page 1
Forum section: electronics / testgear

author: SilverSolder
author_rank: Super Contributor
timestamp: May 30, 2020, 04:35:49 pm
content: I tested a uCurrent Gold with a 400Hz AC signal, to get to grips with the lowest current I can measure with it. I used an AC measurement to be able to filter out noise.Setup: Signal generator output 50mV RMS AC at 400Hz driving a precision isolation transformer 1:4 ratio, in turn driving a 7 digit Ratio Transformer at 200mV RMS. Star ground point at the uCurrent negative output terminal to reduce noise.uCurrent set to highest sensitivity, 1mV / nA. Measurement taken with Agilent 54622D oscilloscope set to 512 averages, to reduce noise.Results -Lowest visible current with decent measurement accuracy (3%):600pAat 400HzCalculating the current: Ratio Transformer Drive Signal (200mV RMS) * Transformer Ratio (Dial) / Shunt Resistance of uCurrent0.2VRMS * 3.0E-5 / 10Kohm = 600pALowest visible current - but with poor measurement accuracy:60pAat 400Hz
uCurrent Gold Availability - Page 1
Forum section: electronics / testgear

author: smbaker
author_rank: Regular Contributor
timestamp: September 01, 2019, 11:28:17 pm
content: After seeing the video on it long ago, I'm finally in a situation where I could have used something like the uCurrent, but it's not available. Anyone know if/when they will return?I know there is a guy who sells the "tinycurrent" clone, but dammit I would take the Dave Jones original if I had the choice.I could build one myself from the published gerbers and BOM.Scott

author: 001
author_rank: Super Contributor
timestamp: September 02, 2019, 07:50:27 am
content: Can anybody told me what is unique for uCurrent?The small burden voltage at 0.01Ohm shunt, isnt it?But new cheap multimeters like aneng AN8009 reads mA at the same 0.01 shuntAny ideas?

author: LazyJack
author_rank: Frequent Contributor
timestamp: September 02, 2019, 07:58:46 am
content: You may want to compare the ranges and the resolution when using the AN8009 and the uCurrent.

author: voltsandjolts
author_rank: Unknown
timestamp: September 02, 2019, 08:16:14 am
content: Quote from: 001 on September 02, 2019, 07:50:27 amHow do I connect the AN8009 to my scope?

author: smbaker
author_rank: Regular Contributor
timestamp: September 02, 2019, 03:27:22 pm
content: Quote from: voltsandjolts on September 02, 2019, 08:16:14 amExactly this.Getting ballpark steady state microamps with my multimeter isn't a problem, but the project I have is a microcontroller that sleeps most of the time, then briefly wakes up and send an RF packet. A scope would give a decent picture of what's going on during that brief period of high power consumption.

author: Lee697
author_rank: Regular Contributor
timestamp: September 20, 2019, 08:47:27 am
content: Quote from: smbaker on September 01, 2019, 11:28:17 pm+1 I'd like to buy one too.....

author: BillB
author_rank: Unknown
timestamp: September 20, 2019, 09:40:56 am
content: I was in the same situation, and while it costs a bit more, I picked up a Current Ranger instead.

author: briangordon
author_rank: Newbie
timestamp: October 01, 2019, 10:51:48 pm
content: I picked up a Current Ranger as well and I like it a lot. The creator was super helpful on Discord as well.

author: SparkyFX
author_rank: Frequent Contributor
timestamp: October 02, 2019, 02:20:42 pm
content: Quote from: Lee697 on September 20, 2019, 08:47:27 am+1

author: chrisjn52
author_rank: Newbie
timestamp: November 16, 2019, 10:31:44 pm
content: I have some spare uCurrent pcb's currently for sale on Ebay UK if you are interested?

author: SparkyFX
author_rank: Frequent Contributor
timestamp: May 29, 2020, 10:57:06 pm
content: Are there supply issues currently? Because the german distributor, from which i ordered in October, cant deliver one currently. They say they are starting their own production runs in the near future.

author: EEVblog
author_rank: Unknown
timestamp: May 30, 2020, 01:17:53 am
content: It's back in stock on my store, but with a spec change.

author: SilverSolder
author_rank: Super Contributor
timestamp: May 30, 2020, 12:52:45 pm
content: What happened with the spec change - parts availability issue?
does 784 can boot from hd?if so anyone try to install linux on it? - Page 1
Forum section: electronics / testgear

author: youxiaojie
author_rank: Newbie
timestamp: May 28, 2020, 08:14:52 pm
content: as topic.

author: tv84
author_rank: Super Contributor
timestamp: May 28, 2020, 08:27:50 pm
content: And a 747?
Siglent SDS1104X-E Amazon Price Drop - Page 1
Forum section: electronics / testgear

author: MikeLud
author_rank: Regular Contributor
timestamp: February 15, 2020, 08:30:42 pm
content: Amazon dropped the price from $499.00 to $438.35https://www.amazon.com/Siglent-SDS1104X-oscilloscope-channels-standard/dp/B0771N1ZF9/ref=sr_1_1_sspa?keywords=sds1104x-e&qid=1581797975&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzTlY3VVFTWDlNOVAyJmVuY3J5cHRlZElkPUEwMTk4MzQ0MzFXU0MzWFY3TjUzQSZlbmNyeXB0ZWRBZElkPUEwMTUyNDUxM1NENFY1TENDUERUNCZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

author: Szumi
author_rank: Contributor
timestamp: February 23, 2020, 09:25:18 pm
content: And on the way home it went up. I bought it anyway, then it went back down.

author: MarkF
author_rank: Super Contributor
timestamp: February 23, 2020, 10:30:13 pm
content: Siglent SDS1104X-E is available atSaeligfor $499 - 6% EEVblog discount.

author: TechieTX
author_rank: Contributor
timestamp: May 30, 2020, 02:16:02 am
content: The 6% Saelig discount isn't worth it for me. If I order on Amazon from Saelig and specify SHIP TO AMAZON HUB COUNTER, then it refuses to let me buy it, and nags that there arespecial handling requirementsthat can't be met by the hub counter.However, if I buy it direct from Amazon, it CAN be shipped to their hub counter instead ofleft abandoned on my doorstep.Guess which one I'm going to choose? Hmmm. 32 bucks less, but someone steals a $500 scope before I get home, or 32 bucks more and I can guarantee that it ends up in my hands. That's pretty much a no-brainer.I'd trust the hub counter WAY more than the sub-human delivery trolls that Amazon uses. A couple of times they've obviously tossed a package out the window of a moving car into my front yard as if it were a newspaper. Yeah, NOT going to leave a scope purchase to their crack-head delivery service. Fedex and UPS slightly better, but it still sits on my doorstep until I get home. At least they don't toss it into the yard like a Frisbee.
Information Regarding Ailtech FM-100 Communications Service Monitor - Page 1
Forum section: electronics / testgear

author: TenSecondToaster
author_rank: Newbie
timestamp: May 31, 2020, 06:31:58 am
content: I am posting here looking for a manual of this product, or any information regarding how to use it or how to determine if it is broken or not. Please feel free to tell me if I am posting improperly or in the wrong place because I am just getting the hang of things on this website.I have looked around on the internet and have only found a few mentions of the Ailtech FM-100 Communications Service Monitor. I am aware partially of what it is as radio testing equipment but I have kind of hit a dead end. The tube powers on, and the displays work but I am reluctant to probe around too much as I am scared to break anything that might be on its way out due to age. Any help would be more than welcome!I hope you can see the images I have included.
tds 694c 754d 784d backup of hard disk?is there java software on it? - Page 1
Forum section: electronics / testgear

author: youxiaojie
author_rank: Newbie
timestamp: May 28, 2020, 08:09:30 pm
content: dear friend, my mechanical hard disk is broken, all java software of 784 are missing. do you have the backup of harddisk? thanks.if so could you mind email me?yxj790222@163.com.
Vintage Geiger Counter Restoration - Help to ID a Hybrid Module? - Page 1
Forum section: electronics / testgear

author: HarryDoPECC
author_rank: Regular Contributor
timestamp: May 29, 2020, 07:40:07 am
content: I am helping one of my high school kids with a study of random numbers. We are doing a few fun things and one is to make 'real' ones from random physical phenomena. So I got a Geiger counter from that well-known site and we will hook it up to my hi-speed counters and make some logging software to record the intervals between decays. Should be some fun at least.The counter that I won in the end turns out to be a bit more complex than I anticipated. Meter name says Certified Radiation Institute of Hollywood but google gives nothing except a possible link to Precision Radiation Instruments of California, but again nothing more useful on google. The meter movement has a date stamp for Sep1969. The patent on the hybrid module is for a method of constructing trimpots. So that's no help.My analogue skills are largely self-taught and while I have got the unit running well I don't understand all of the circuit, and there is a 1960's hybrid module that I cannot understand at all. Hoping the experts here will offer me some circuit analysis hints, and maybe can help me work out what the hybrid does.I have reverse engineered the circuit and can follow the Q1 oscillator driving the step-up, the D2 rectifier to the tube, C3/R5 to isolate/couple to Q3 signal amplifier. D5 / R6 couple to Q4 which drives the visual indicator.I am left with a bunch of unknowns:- What does Q2 / L1 do,- why is Q2 coupled back to the oscillator via D3,- audio output comes via the hybrid, why more directly from Q3 collector,- C4 and C5 must be part of a charge pump/reservoir that is related to the rate-meter, but dunno how this works without knowing the hybrid- the hybrid is clearly an essential part of the meter circuit, so what's in it?- I will also need to tap off a signal to the counter, I guess Q3 collector is the first place to try. Comments? I have not yet put the scope on to see if it looks useful.There does not seem to be too much in the hybrid, but I guess I could be very wrong about that! I'm hoping there are experts out there who recognise this sort of technology and can help to explain it.Thanks in advance!
Recommendations on a capacitor meter? - Page 1
Forum section: electronics / testgear

author: ninjanation217
author_rank: Contributor
timestamp: May 27, 2020, 03:12:23 pm
content: HelloI have been looking for a decent capacitor meter, preferably hand held. I'm looking to measure down to 220pF. I am not so much worried about cost as I am using it for work. I was hoping I could find a Fluke brand one but haven't had much luck.What do you guys use? I figured I should ask people with experience for their opinion.Thanks,- Jim

author: Elasia
author_rank: Frequent Contributor
timestamp: May 27, 2020, 03:20:00 pm
content: You want a LCR meterI use ahttps://smarttweezers.us/myself but this is also a good onehttps://www.lcrresearch.com/pro1plus/Outside of that its slim pickings for a cheap option less you go with Chinese gearWasnt impressed with the BT function of the smart tweezers.. if i had to do it over again i'd get the pro 1

author: graybeard
author_rank: Frequent Contributor
timestamp: May 27, 2020, 05:03:06 pm
content: I like myDER EE DE-5000. It resolves 10's of fF on the 200pF range. They can be picked up for about $100See this thread:https://www.eevblog.com/forum/testgear/der-ee-de-5000-unboxing-and-teardown/

author: EA3BV
author_rank: Newbie
timestamp: May 27, 2020, 05:03:58 pm
content: Hi,I have aDer EE de-5000, It is a LCR Meter from Japan with a good quality and precision for 100 euros shipping included.Also there is aAtlas Peak LCR45(old model LCR44) that has a very good reviews, also measures a low inductances, etc.

author: ninjanation217
author_rank: Contributor
timestamp: May 27, 2020, 06:18:31 pm
content: Thank you very much, that thread was extremely helpful. I have decided to go with the DE-5000 LCR.Thanks to everyone that provided information! You guys are awesome!

author: texaspyro
author_rank: Super Contributor
timestamp: May 28, 2020, 04:59:52 am
content: ESI VideoBridge for the win... it's not hand held... or easy to find... or cheap when you do find one in working condition.

author: stafil
author_rank: Regular Contributor
timestamp: May 28, 2020, 06:57:05 am
content: I was not too impressed with the Der-EE QA. It came with one of the input thingys blended(see photo). So if you end up buying one from eBay, make sure you thoroughly test it before leaving positive feedback.

author: PushUp
author_rank: Regular Contributor
timestamp: May 28, 2020, 07:02:19 pm
content: Have you considered the Keysight U1733C?https://www.keysight.com/en/pc-1587210/u1700-series-handheld-capacitance-and-lcr-meters?pm=SC&nid=-34196.0&cc=GB&lc=engI only have the "Atlas Peak LCR 45". It is fine as it is capable to measure up to 200 kHz in contrast to the 100 kHz of the U1733C, which is more than 5x the price.However, for professional use the LCR 45 is not robust enough and the two button operation is awkward, when switching the modes. You are able to buy a pair of tweezers, but the missing backlight makes it hard to read under difficult light conditions, as you can see on my "in action" pic. ;-)Nevertheless, for me it is enough, as it measures capacitance from 0pF up to 10 000 uF.
Newbie - Help Please. Hantek DSO5102P and Instek AFG-2125 - Page 1
Forum section: electronics / testgear

author: DGP750
author_rank: Newbie
timestamp: May 26, 2020, 12:39:23 pm
content: Hi all, please could someone assist a Newbie...I have a keen interest in old analog audio, specifically reel to reel tape recorders.I am intending to set various parameters in one of my decks, (Bias etc) and to that end purchased a New, DSO5102P scope and a nearly new, AFG-2125.I have watched various education videos and I thought that prior to beginning the calibration of my decks, I would just have a play with the test equipment so as I get a bit more familiar with the readings.Basically, I have connected the Function Gen to the Scope with the BNC lead, terminated with a 50ohm terminator.I have set the Gen to output a 1KHz sine wave at 1.0v Pk-Pk as per the pics.However, when I view the scope, it reads as 10.6v Pk-PkI thought this would be a really simple thing to test but I am obviously doing something wrong.The scope has been set to default and passed self calibration.I have measured the output of the Gen with a Multimeter on AV and it reads 2,4v?? I'm really confused.Please could someone tell me where I am going wrong.I am assuming that the equipment is working correctly but as I said, the AFG-2125 was purchased used.Thanks in advance

author: indman
author_rank: Super Contributor
timestamp: May 26, 2020, 01:44:45 pm
content: Check these settings and make a 1х selection for a BNC cable without a divider.

author: DGP750
author_rank: Newbie
timestamp: May 26, 2020, 02:52:48 pm
content: Quote from: indman on May 26, 2020, 01:44:45 pmHi indman.Many thanks... That advice really helped... I removed the divider with the 50ohm terminator and then changed the setting to x1 as you recommended. The readings changed but now the Pk-Pk was at 2.18v. I then re-installed the divider and the 50ohm terminator and the readings are now showing 1.04v Pk-Pk which is obviously in line with what I expected to see... I do recall that when connecting a Gen to a Scope, (directly in this way), that the 50ohm termination was required but obviously it was the 1x setting that you recommended that fixed the issue. Many thanks...Again, I do recall seeing in the menus somewhere a setting for probe impedance but of course, I cannot find it now...

author: M0HZH
author_rank: Regular Contributor
timestamp: May 26, 2020, 06:54:51 pm
content: To properly terminate the output of the signal generator you need a 50ohm load. It's not something you can compensate in software for and the Hantek doesn't have optional 50ohm input termination (few oscilloscopes do).The correct way to measure is probe menu set to 1X and using a 50ohm termination at the scope input.
Anyone have Analogic DBS2050A AWG VXI Plug and Play Driver software? - Page 1
Forum section: electronics / testgear

author: gslick
author_rank: Frequent Contributor
timestamp: December 01, 2019, 09:22:13 pm
content: I have an Analogic DBS 2050A, which is a C Size VXI Instrument Module that is a 2.4 GS/s Dual-Channel Arbitrary Waveform Generator. While I don't have a real need for such an instrument, it would be nice to at least verify that it fully functional beyond the power up self-test LED indicator.It is a register based VXI instrument, not a message based instrument, so a driver that operates on the VXI register interface is necessary to make any use of it. The user manual only documents the driver API, not the VXI register interface.The manuals say that the software was supplied with the instrument on a CD. "The DBS 2050A comes equipped with a fully compliant VXI Plug and Play Driver, soft front panel and application source code. The toolset supports application-specific developments in Visual C/C++ or Visual BASIC, as well as National Instruments’ LabWindows/CVI and LabVIEW."Any change anyone out there has a copy of the software that was supplied with the Analogic DBS 2050A? I haven't found any trace of the software anywhere on the net.From what I can tell Analogic acquired SKY Computers in 1992, and then sold off the test-and-measurement products back as SKY Computers in 2007. The SKY Computers website looks like it has been dead since 2010. There might not be any company left that would still have support information for these products.

author: Drewbie
author_rank: Contributor
timestamp: May 27, 2020, 11:57:12 am
content: Did you have any luck finding a driver?I think Analogic was called "Data Precision" at some stage and made VXI gear under that brand too.I've set up a VXI enthusiasts group at groups.io and have uploaded all the HP/Agilent VXIPNP drivers I could find to it along with a DB of VXI cards. You might have some stuff you can add to it?Cheers,
HP Yig searching info - connections or schematics  - Page 1
Forum section: electronics / testgear

author: Pifke
author_rank: Newbie
timestamp: May 24, 2020, 01:50:58 pm
content: Hello, i have 2 yig's from hp - but down't know from what HP equipment,. I need the pinout from the yig's. Can anyone help me ?Want to use them standalone.greetings from germanyPit

author: shakalnokturn
author_rank: Super Contributor
timestamp: May 26, 2020, 07:11:53 pm
content: Tried Google and eBay search with HP part number?Once you know what equipment it is used in you should find the pinout in service manuals.You could also try asking on the HPAK groups.io
ACTERNA JDSU HST 3000 USB problem - Page 1
Forum section: electronics / testgear

author: inquisitor
author_rank: Contributor
timestamp: May 26, 2020, 04:04:24 pm
content: Hello everyone ,i m traying to update HST3000 ,but the usb port seems to have problem ,if i insert the usb storage formated fat32 in unit the unit does not recognized usb i try 3 different usb stick ,anybody know the device problem ? thanks
Agilent 53132A Single pulse measurement ? - Page 1
Forum section: electronics / testgear

author: JohnPi
author_rank: Regular Contributor
timestamp: May 26, 2020, 08:08:02 pm
content: I am trying to measure the pulse width of individual pulses with my 53132A frequency counter. The pulses are < 1 us wide.If I use a signal generator and set the frequency to over 70 Hz, I can measure using the counter's pulsewidth feature (in fact it displays an _average_ of the widths over the gate time). I have the input set to DC-coupled and manually set the threshold (I have a 5 V signal).I have tried using the external trigger, but end up with similar behavior -- need > 70 Hz to get reliable triggering (and even then it's an _average_ of the pulses in). There is no available Gate Time setting in pulsewidth mode, but if you set the Gate Time in frequency counter mode, it appears to remain active in pulsewidth mode.Does anyone know how to do this ? Ultimately, I'd like to measure single pulses, either individually if they come in at a low rate (say < 1 Hz), or if they are faster, the 1st in a group (perhaps triggered by the external trigger).

author: StefanF
author_rank: Contributor
timestamp: June 01, 2020, 08:56:06 pm
content: Hello JohnI had the same problem with my 53131A, but found a solution now.Even though there is used 1 channel when measuring pulse width, it still stays a 2-channel measurement.So you must setup channel 2 equal as channel 1.https://edadocs.software.keysight.com/kkbopen/why-cant-53131a-measure-pulse-width-of-signal-below-30hz-580260961.htmlKind regardsStefan

author: dacman
author_rank: Frequent Contributor
timestamp: June 01, 2020, 10:25:14 pm
content: Pulse Width assumes a continuous pulse and the Gate still applies. For an individual pulse, use Time Interval 1 to 2, and set Input 1 and 2 to Common. Be sure to set parameters for both channels, such as DC, X10, Filter, Start Trigger Level, Stop Trigger Level, etc.
Tektronix Scope CRT Markings? - Page 1
Forum section: electronics / testgear

author: wn1fju
author_rank: Frequent Contributor
timestamp: May 26, 2020, 11:56:20 am
content: Take a look at the CRT of the Tektronix 5110 in the photo. What are the two small triangles in the bottom left for? I've never seen those on any other CRT. Perhaps they are used in conjunction with the old Polaroid scope cameras so there will be no ambiguity as to the x- and y- directions in your photo?

author: TimFox
author_rank: Super Contributor
timestamp: May 26, 2020, 03:00:47 pm
content: I had never noticed such marks before, but I agree that they are probably to unambiguously mark the lower left-hand corner in a Polaroid photo of the scope trace.
how to reset rigol password? - Page 1
Forum section: electronics / testgear

author: Notsolowki
author_rank: Newbie
timestamp: May 25, 2020, 07:29:43 pm
content: does anyone know how to reset the password on a rigol device. i changed it a while back and now i cant remember it?? thanks

author: Fungus
author_rank: Super Contributor
timestamp: May 26, 2020, 01:01:41 pm
content: Try a factory reset:eg.https://www.google.com/search?q=ds1054z+factory+resetPS: My crystal ball is broken so I can't see what Rigol device you have from here. You might need to edit that search.
Looking for Floppy images for METEX MS-2000 "Handy Scope View" - Page 1
Forum section: electronics / testgear

author: kleiner Rainer
author_rank: Regular Contributor
timestamp: May 26, 2020, 11:39:39 am
content: All,the title says it all: I am searching for a floppy disk image of the software that was included with the METEX MS-2000 Handy Scope, named "Handy Scope View". One of my floppies has bit rot in several sectors, so that the installation stops with an error message. I got an old laptop with a stone age Win version that should work for the installation of the software. The plan is to observe the communication between PC and MS-2000 and use more modern software based on the protocol. Anybody with the original software out there, or a detailed protocol description? Hint: its not the usual 14-byte METEX serial protocol.Thanks in advance,Rainer
--LICENCES-- Rohde ZVH4 - Page 1
Forum section: electronics / testgear

author: ocom
author_rank: Newbie
timestamp: April 07, 2020, 04:41:15 am
content: Good morning all,I have been reading this forum for a long time, I need helpI have a ZVH4 bought in 2018. I am looking for a license for certain software options.is this possible without going through R&S?thank youYo

author: ocom
author_rank: Newbie
timestamp: May 25, 2020, 08:59:47 pm
content: petit up les gars merci

author: Simon
author_rank: Unknown
timestamp: May 26, 2020, 07:35:06 am
content: This forum does not tolerate software piracy. You are also expected to post in English.
What are these? - Page 1
Forum section: electronics / testgear

author: PixieDust
author_rank: Frequent Contributor
timestamp: May 24, 2020, 08:23:58 am
content: Does anyone know what these three threaded things are? Are these aftermarket? It's on a Tektronix oscilloscope, if that makes a difference.

author: Specmaster
author_rank: Super Contributor
timestamp: May 24, 2020, 08:34:36 am
content: Yes, they are where the manuals and probes storage pouch is normally fixed to if the pouch was supplied when new.
Meguro MAK-6610 Service Manual anyone?? - Page 1
Forum section: electronics / testgear

author: bsgd
author_rank: Regular Contributor
timestamp: April 10, 2020, 09:34:16 pm
content: Hello guys,About 4 years ago I got for cheap a non working Meguro MAK-6610 Audio Analyzer. I have since been trying to find a service manual for it but no luck.Do any of you happen to have it?I'd be forever grateful!!!

author: bsgd
author_rank: Regular Contributor
timestamp: April 14, 2020, 12:10:41 pm
content: I just got a reply from Meguro saying that they never provide or sell any Service Manuals.I then asked if I could send my unit in to have it fixed by them and they said they wont work on it (nor calibrate it) because it is a discontinued model, and that I should buy their newer units.This is bad comapny policy in my opinion. I must say that Im really surprised a big measurement manufacturer like Meguro has such a bad customer support and I wouldnt buy any new product from them since after a few years it will just become completely unusable.

author: rvalente
author_rank: Frequent Contributor
timestamp: April 16, 2020, 01:21:27 pm
content: Quote from: bsgd on April 14, 2020, 12:10:41 pmThat's one of the reasons I avoid buying Japaneses and German T&M, companies like Meguro, Rohde&Schwarz, Hameg, Kikusui, Anritsu and many others do not share information, so we get stucked in the mud!I'll try with some friends in brazil to locate this for you.

author: bsgd
author_rank: Regular Contributor
timestamp: May 24, 2020, 01:12:13 pm
content: Yeah, I leaned my lesson the hard way, and will avoid these brands.If you do find any info or documentation on this unit I'll be very grateful!!

author: coromonadalix
author_rank: Super Contributor
timestamp: May 24, 2020, 02:18:28 pm
content: Well i partially vouch for KikusuiAt least for my Pad power supply, they were helpful to me, they sent me a service manual, they were honest to say they did not have any parts left for repairs, its a 16 years old unit they said, i'm on my ownSure its sad to see some companies doing that, but we have to understand their IP protections in some cases ... me too i have learned the hard way, and now, most of the times i'll buy something who has a service manual available or can found on the web before my purchase(s).
Philips PM5135 function generator service manual needed - Page 1
Forum section: electronics / testgear

author: odium
author_rank: Contributor
timestamp: May 16, 2020, 08:48:29 am
content: Hi guys,Can't find schematics for Philips/Fluke PM5135 func. generator …Can anyone help ?any info will be much appreciated.cheers.

author: odium
author_rank: Contributor
timestamp: May 23, 2020, 11:32:26 pm
content: no luck …
Win SIGLENT X-Scope or X-Generator Just for Giving us a Review - Page 1
Forum section: electronics / testgear

author: stmcore
author_rank: Newbie
timestamp: May 23, 2020, 02:00:57 am
content: https://siglentna.com/news-article/win-siglent-x-scope-or-x-generator-just-for-giving-us-a-review/#

author: Elasia
author_rank: Frequent Contributor
timestamp: May 23, 2020, 02:11:53 am
content: Defprom just posted about this on his channel, not a bad give away if doing reviewsDefprom, good luck!Sadly I have one of everything they are giving away already lolThey need to give away a zodiac

author: StillTrying
author_rank: Super Contributor
timestamp: May 23, 2020, 02:20:28 am
content: I can't see how everywhere flooded with fake reviews would be a good thing.

author: tautech
author_rank: Super Contributor
timestamp: May 23, 2020, 03:44:33 am
content: Quote from: Elasia on May 23, 2020, 02:11:53 amNot gunna happen in its current form as it's reserved for China markets and probably LeCroy but with Probus connectors.

author: james_s
author_rank: Super Contributor
timestamp: May 23, 2020, 03:56:39 am
content: If they want to send me an instrument I'd be happy to evaluate it and write an honest review, but I can't review something I don't have.
MOVED: Tektronix DM5120 - 6 1/2 digit multimeter (need repair) - Page 1
Forum section: electronics / testgear

author: sorenkir
author_rank: Regular Contributor
timestamp: May 27, 2020, 07:40:40 pm
content: This topic has been moved toRepair.https://www.eevblog.com/forum/index.php?topic=242981.0
Fluke 175 0.8 - 1.0 M ohms with or without test leads  - Page 1
Forum section: electronics / testgear

author: wertyu
author_rank: Contributor
timestamp: February 20, 2019, 04:00:27 pm
content: My first fluke a used 175 but for some reason the resistance measures , 0.8 - 1.0 M ohms with or without test leads .. if you touch together it seems to read ok but why the reading normally .

author: Roeland_R
author_rank: Regular Contributor
timestamp: February 20, 2019, 04:02:38 pm
content: Quote from: wertyu on February 20, 2019, 04:00:27 pmIs there any dirt/moisture inside the Fluke?Verstuurd vanaf mijn WAS-LX1A met Tapatalk

author: Kean
author_rank: Unknown
timestamp: February 20, 2019, 04:19:31 pm
content: Typically this is due to leakage via contamination or damaged input protection components

author: wertyu
author_rank: Contributor
timestamp: February 20, 2019, 04:30:28 pm
content: i stripped fluke out and cleaned the terminals i did not notice a lot inside but then again most of the good stuff is covered ill have to strip further . it seems you get what i mean but here is video ill strip it again nowhttps://youtu.be/XWLyVNa7sFg

author: shakalnokturn
author_rank: Super Contributor
timestamp: February 20, 2019, 05:27:23 pm
content: What does DC mV range read with leads shorted?

author: wertyu
author_rank: Contributor
timestamp: February 20, 2019, 05:50:27 pm
content: DC mV shorted reads 0.0there is a problem with board as i can get it to OL ( read normal ) but move or jiggle the board a bit at it reads M ohms ( faulty) . I can sort of replicate fault but not home in on it , ah well i now know there is a fault with board so ill send it back i dont think going further would be fair , im certain its not solder joint or connector post im thinking bad component or lose component or bad track but it could be anything i suppose .

author: wertyu
author_rank: Contributor
timestamp: May 23, 2020, 12:16:52 am
content: bit late but you were spot on with this @Roeland_R , it was moisture . just incase anyone comes across this searching in future.
Anritsu/Wiltron 37369a Operating system - Page 1
Forum section: electronics / testgear

author: Cristian2020
author_rank: Newbie
timestamp: May 22, 2020, 11:41:14 pm
content: Hi,I have an VNA model Anritsu/Wiltron 37369A that unfortunately has the HDD fail.Is a SCSI2 HDD and the instrument run the proprietary OS from Anritsu compatible with M68K .According to troubleshooting manual i can have a chance to install the OS if i can find the master floppy disks that was delivered with the OP manual.Also,it seams the HDD is MSDOS format compatible and some software available from Anritsu site can mount the HDD to PC so one can read the content if have access to a similar equipment.Does anybody has the OS for this?Thank you very much!
Brymen BM235 AutoV strange behavior? - Page 1
Forum section: electronics / testgear

author: twtb
author_rank: Contributor
timestamp: May 19, 2020, 11:53:47 am
content: When my BM235 is in the AutoV mode, without anything connected, it is constantly switching between AC and DC (with a beep). This is very annoying of course.My question is now: is this normal behavior? Normally it should only switch if it detects 1V AC or DC, and according to the screen thats the case.But in voltage mode, it's nicely measuring around 1V.Video:https://streamable.com/x1cixh

author: twtb
author_rank: Contributor
timestamp: May 21, 2020, 06:18:23 am
content: Nobody here who has this meter, or the eevblog version, who can check this please?

author: ercapoccia
author_rank: Regular Contributor
timestamp: May 21, 2020, 09:12:16 am
content: No it is not a normal behaviour. Did you spill a liquid on the meter? You may try to remove the test leads and blow some air in the connection or open the meter and clean with IPA.

author: twtb
author_rank: Contributor
timestamp: May 21, 2020, 09:29:04 am
content: It's a brand new meter, only two days old. Without test leads, the same happens.For this reason I will also not open up the meter, to be able to still return it to the shop.Could somebody maybe also create a short video of the meter in the same mode please to compare?

author: ercapoccia
author_rank: Regular Contributor
timestamp: May 21, 2020, 10:53:47 am
content: It says "Auto", and for example if you short the test leads it say zero ohm in auto scale

author: NoisyBoy
author_rank: Frequent Contributor
timestamp: May 21, 2020, 04:48:43 pm
content: Auto is for range only, not AC vs. DC. Sounds like you have a defective meter, you should return it for a new replacement instead of wasting any more time with it. Likely a shorted SELECT key.

author: ercapoccia
author_rank: Regular Contributor
timestamp: May 21, 2020, 05:31:14 pm
content: My mistake the BM257S says "Auto" on the digit display, the BM253 says "---- v"See pag. 6https://brymen.eu/wp-content/uploads/biall/102138/102138.INSTRUKCJA_EN..2016-05-06.1.pdf

author: NoisyBoy
author_rank: Frequent Contributor
timestamp: May 21, 2020, 07:59:59 pm
content: Great point, you are right, I am wrong as AutoV is the default in BM235 and it automatically switches between AC or DC when voltage is above 1V.Not sure about the beep though.

author: Bosozoku
author_rank: Newbie
timestamp: May 22, 2020, 05:35:13 pm
content: I thought this was weird behavior, too. I have three bm235s here at work. Having never used AutoV, or even measured ACV at all I decided to check this behavior against the meters here. I don't have an AC source other than mains, but do have a bench DC supply. Seems to beep when changing modes between AC and DC, it stops beeping when it has a solid input. With a floating input it might be oscillating between AC and DC.https://youtu.be/Xvb_jQJhqvQ
Siglent SDS1104E-X capture and store (possibly make a video of the signal) - Page 1
Forum section: electronics / testgear

author: Coyote
author_rank: Contributor
timestamp: May 22, 2020, 09:52:12 am
content: Hi,I wonder if my scope is able to continuously store the acquired signal for latter view. I have read tons of brochures, manuals, but still I didn't came up to a conclusion. For example if its possible to transfer (and store somehow) the memory contents like a FIFO to a remote PC or to USB flash disk. Then yo would need a program that opens this file and makes some trace view that you can scroll or play.Is there any similar solution that I can start to look?

author: tautech
author_rank: Super Contributor
timestamp: May 22, 2020, 10:02:39 am
content: Well you can view and control the scope remotely from any PC with an internet browser.Connect the scope to your LAN, set up its IP and point the PC browser to that IP.If you can capture the PC screen into a video then you have what you seek, but dunno what SW would do that for you, others will know.More info on the PC connection here:https://siglentna.com/video/x-e-4-channel-web-browser-update-this-thing-is-fast/

author: Coyote
author_rank: Contributor
timestamp: May 22, 2020, 02:47:56 pm
content: Thank you for your reply, but this would store only one single screen, not a continuous acquisition.

author: tv84
author_rank: Super Contributor
timestamp: May 22, 2020, 03:17:45 pm
content: Quote from: Coyote on May 22, 2020, 09:52:12 amIs it because there is nothing that answers your goal?You want to be able to "play" a signal through a scope after it has been captured? With scope-like features to navigate? ?

author: Elasia
author_rank: Frequent Contributor
timestamp: May 22, 2020, 03:30:22 pm
content: You can dump the data to a text file and consume it in whatever favorite app you haveAt work we actually put it into.... excel!The newer versions of excel actually arent that bad at allAlso we use matlab etc which actually does most of the post processing

author: 2N3055
author_rank: Super Contributor
timestamp: May 22, 2020, 05:03:14 pm
content: Picoscope can save up to 10000 capture(configurable) buffers, when it fills all the buffers it can be set to save them all to disk and restart capturing. It can do that until you run out of disk space.You can open those files later with Picoscope software (even without scope connected), apply math and measurements, decode protocols and navigate through data, like you would with any other stopped acquisition..You can also save full capture consisting of many buffers to a single animated gif.Micsig tablet scopes can also record video (short movies) of captures, but not continuously and not unattended.